Optional antialiasing

Draw call batching for improved performance
Hi-dpi support, fsaa tweaks
2025-09-26 00:19:11 +05:00 · 2025-09-21 21:30:02 +05:00 · 2025-09-21 02:38:49 +05:00 · 2025-09-20 23:22:30 +05:00 · 2025-09-20 19:03:36 +05:00 · 2025-09-20 17:56:15 +05:00
28 changed files with 1476 additions and 8408 deletions
--- a/.ignore
+++ b/.ignore
@@ -0,0 +1,5 @@
+/data/**/*.png
+/data/**/*.bin
+/data/**/*.blend
+/data/**/*.blend1
+/.git
--- a/build.zig
+++ b/build.zig
@@ -6,6 +6,10 @@ const SHADERS: []const []const u8 = &.{
    "data/shaders/basic.vert",
    "data/shaders/basic.frag",
 };
+const SDL_LIBS: []const []const u8 = &.{
+    "SDL3",
+    "SDL3_image",
+};

 pub fn build(b: *Build) void {
    const target = b.standardTargetOptions(.{});
@@ -56,16 +60,16 @@ fn stepBuildClient(
 ) *Build.Step.Compile {
    const exe = b.addExecutable(.{
        .name = "tabletop_client",
+        .root_module = b.createModule(.{
            .root_source_file = b.path("src/client.zig"),
            .target = target,
            .optimize = optimize,
+        }),
    });

    exe.root_module.addImport("sdl", sdl_module);
    exe.step.dependOn(sdl_step);

-    exe.addIncludePath(b.path("lib/clibs"));
-
    return exe;
 }

@@ -76,9 +80,11 @@ fn stepBuildServer(
 ) *Build.Step.Compile {
    const exe = b.addExecutable(.{
        .name = "tabletop_server",
+        .root_module = b.createModule(.{
            .root_source_file = b.path("src/server.zig"),
            .target = target,
            .optimize = optimize,
+        }),
    });

    return exe;
@@ -93,16 +99,16 @@ fn stepBuildOffline(
 ) *Build.Step.Compile {
    const exe = b.addExecutable(.{
        .name = "tabletop",
+        .root_module = b.createModule(.{
            .root_source_file = b.path("src/offline.zig"),
            .target = target,
            .optimize = optimize,
+        }),
    });

    exe.root_module.addImport("sdl", sdl_module);
    exe.step.dependOn(sdl_step);

-    exe.addIncludePath(b.path("lib/clibs"));
-
    return exe;
 }

@@ -112,11 +118,15 @@ fn stepBuildSdlTranslator(
 ) *Build.Step.Compile {
    const sdl_translator = b.addExecutable(.{
        .name = "sdl_header_translator",
+        .root_module = b.createModule(.{
            .root_source_file = b.path("utils/sdl_translator.zig"),
            .target = target,
            .optimize = .Debug,
+        }),
    });
-    sdl_translator.linkSystemLibrary("SDL3");
+    for (SDL_LIBS) |lib| {
+        sdl_translator.linkSystemLibrary(lib);
+    }
    return sdl_translator;
 }

@@ -138,20 +148,25 @@ fn stepSdlModule(
    target: Build.ResolvedTarget,
    optimize: std.builtin.OptimizeMode,
 ) struct { *Build.Module, *Build.Step } {
-    const sdl_module = b.addModule("sdl", .{
-        .root_source_file = b.path("lib/sdl.zig"),
+    const translate_sdl_step, const sdl_rename = stepTranslateSdl(b, target);
+
+    const translate_c = b.addTranslateC(.{
+        .root_source_file = b.path("lib/sdl.h"),
        .link_libc = true,
        .target = target,
        .optimize = optimize,
    });
-    sdl_module.linkSystemLibrary("SDL3", .{});
+    translate_c.addIncludePath(sdl_rename.dirname());
+    const translate_module = translate_c.createModule();
+    for (SDL_LIBS) |lib| {
+        translate_module.linkSystemLibrary(lib, .{ .needed = true });
+    }

-    const translate_step, const sdl_rename = stepTranslateSdl(b, target);
-    sdl_module.addIncludePath(sdl_rename.dirname());
+    translate_c.step.dependOn(translate_sdl_step);

    return .{
-        sdl_module,
-        translate_step,
+        translate_module,
+        &translate_c.step,
    };
 }

--- a/data/cubemap.bin
+++ b/data/cubemap.bin
--- a/data/cubemap.gltf
+++ b/data/cubemap.gltf
@@ -0,0 +1,142 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.5.48",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"cubemap"
+		}
+	],
+	"materials":[
+		{
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material_0",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Cube.001",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"cubemap.png",
+			"uri":"cubemap.png"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":24,
+			"max":[
+				0.4999999701976776,
+				0.5,
+				0.5
+			],
+			"min":[
+				-0.4999999701976776,
+				-0.5,
+				-0.5
+			],
+			"type":"VEC3"
+		},
+		{
+			"bufferView":1,
+			"componentType":5126,
+			"count":24,
+			"type":"VEC3"
+		},
+		{
+			"bufferView":2,
+			"componentType":5126,
+			"count":24,
+			"type":"VEC2"
+		},
+		{
+			"bufferView":3,
+			"componentType":5123,
+			"count":36,
+			"type":"SCALAR"
+		}
+	],
+	"bufferViews":[
+		{
+			"buffer":0,
+			"byteLength":288,
+			"byteOffset":0,
+			"target":34962
+		},
+		{
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+			"byteLength":288,
+			"byteOffset":288,
+			"target":34962
+		},
+		{
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+			"byteLength":192,
+			"byteOffset":576,
+			"target":34962
+		},
+		{
+			"buffer":0,
+			"byteLength":72,
+			"byteOffset":768,
+			"target":34963
+		}
+	],
+	"samplers":[
+		{
+			"magFilter":9729,
+			"minFilter":9987
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":840,
+			"uri":"cubemap.bin"
+		}
+	]
+}
--- a/data/hand.bin
+++ b/data/hand.bin
--- a/data/hand.gltf
+++ b/data/hand.gltf
@@ -0,0 +1,144 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.5.48",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"hand"
+		}
+	],
+	"materials":[
+		{
+			"alphaMode":"BLEND",
+			"doubleSided":true,
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Plane.001",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"hand.png",
+			"uri":"hand.png"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":4,
+			"max":[
+				0.5,
+				0.5,
+				0
+			],
+			"min":[
+				-0.5,
+				-0.5,
+				0
+			],
+			"type":"VEC3"
+		},
+		{
+			"bufferView":1,
+			"componentType":5126,
+			"count":4,
+			"type":"VEC3"
+		},
+		{
+			"bufferView":2,
+			"componentType":5126,
+			"count":4,
+			"type":"VEC2"
+		},
+		{
+			"bufferView":3,
+			"componentType":5123,
+			"count":6,
+			"type":"SCALAR"
+		}
+	],
+	"bufferViews":[
+		{
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+			"byteOffset":0,
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+		{
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+			"byteLength":12,
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+		}
+	],
+	"samplers":[
+		{
+			"magFilter":9728,
+			"minFilter":9984
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":140,
+			"uri":"hand.bin"
+		}
+	]
+}
--- a/data/shaders/basic.vert
+++ b/data/shaders/basic.vert
@@ -13,6 +13,6 @@ layout(set = 1, binding = 1) uniform Object{

 void main() {
    gl_Position = vec4(inCoord, 1.0) * object.transform * camera.transform;
-    gl_ClipDistance[0] = gl_Position.z;
+    gl_ClipDistance[0] = gl_Position.w - gl_Position.z;
    outUV = inUV;
 }
--- a/data/yakuza/card.bin
+++ b/data/yakuza/card.bin
--- a/data/yakuza/card.gltf
+++ b/data/yakuza/card.gltf
@@ -0,0 +1,144 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.5.48",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"card"
+		}
+	],
+	"materials":[
+		{
+			"alphaMode":"BLEND",
+			"doubleSided":true,
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Plane.002",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"game.png",
+			"uri":"game.png"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":120,
+			"max":[
+				0.25,
+				0.25,
+				0.00390625
+			],
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+				-0.25,
+				-0.25,
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+			],
+			"type":"VEC3"
+		},
+		{
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+			"count":120,
+			"type":"VEC3"
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+		{
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+			"componentType":5126,
+			"count":120,
+			"type":"VEC2"
+		},
+		{
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+			"componentType":5123,
+			"count":228,
+			"type":"SCALAR"
+		}
+	],
+	"bufferViews":[
+		{
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+		{
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+			"byteOffset":2880,
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+		{
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+			"byteLength":456,
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+		}
+	],
+	"samplers":[
+		{
+			"magFilter":9728,
+			"minFilter":9984
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":4296,
+			"uri":"card.bin"
+		}
+	]
+}
--- a/data/yakuza/game.png
+++ b/data/yakuza/game.png
--- a/data/yakuza/pad.bin
+++ b/data/yakuza/pad.bin
--- a/data/yakuza/pad.gltf
+++ b/data/yakuza/pad.gltf
@@ -0,0 +1,144 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.5.48",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"pad"
+		}
+	],
+	"materials":[
+		{
+			"alphaMode":"BLEND",
+			"doubleSided":true,
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Plane.003",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"game.png",
+			"uri":"game.png"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":1272,
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+		},
+		{
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+			"type":"VEC3"
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+		{
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+			"type":"VEC2"
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+		{
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+			"componentType":5123,
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+			"type":"SCALAR"
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+	"bufferViews":[
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+		{
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+		{
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+		}
+	],
+	"samplers":[
+		{
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+			"minFilter":9984
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":45768,
+			"uri":"pad.bin"
+		}
+	]
+}
--- a/data/yakuza/table.bin
+++ b/data/yakuza/table.bin
--- a/data/yakuza/table.gltf
+++ b/data/yakuza/table.gltf
@@ -0,0 +1,144 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.5.48",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"table"
+		}
+	],
+	"materials":[
+		{
+			"alphaMode":"BLEND",
+			"doubleSided":true,
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Plane",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"game.png",
+			"uri":"game.png"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":24,
+			"max":[
+				4,
+				4,
+				0
+			],
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+				-4,
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+			],
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+		{
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+			"count":24,
+			"type":"VEC3"
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+		{
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+			"componentType":5126,
+			"count":24,
+			"type":"VEC2"
+		},
+		{
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+			"componentType":5123,
+			"count":36,
+			"type":"SCALAR"
+		}
+	],
+	"bufferViews":[
+		{
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+		{
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+		},
+		{
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+		}
+	],
+	"samplers":[
+		{
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+			"minFilter":9984
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":840,
+			"uri":"table.bin"
+		}
+	]
+}
--- a/lib/clibs/stb_image.h
+++ b/lib/clibs/stb_image.h
--- a/lib/sdl.h
+++ b/lib/sdl.h
@@ -0,0 +1,3 @@
+#include "SDL3/SDL.h"
+#include "SDL3_image/SDL_image.h"
+#include "sdl_rename.h"
--- a/lib/sdl.zig
+++ b/lib/sdl.zig
@@ -1,4 +0,0 @@
-pub usingnamespace @cImport({
-    @cInclude("SDL3/SDL.h");
-    @cInclude("sdl_rename.h");
-});
--- a/src/assets.zig
+++ b/src/assets.zig
@@ -1,11 +1,17 @@
 const std = @import("std");
+const builtin = @import("builtin");
 const err = @import("error.zig");
 const Game = @import("game.zig");
 const FileLoader = @import("assets/file.zig");
 const TextureLoader = @import("assets/texture.zig");
+const GltfLoader = @import("assets/gltf.zig");
 const Assets = @This();

+// TODO: Unload assets in correct order to account for asset dependencies
+
+pub const File = AssetContainer(FileLoader);
 pub const Texture = AssetContainer(TextureLoader);
+pub const Object = AssetContainer(GltfLoader);

 const WORKERS_MAX = 4;
 var next_worker_update: usize = 0;
@@ -50,16 +56,19 @@ pub const LoadError = error{
    ParsingError,
    SdlError,
    FileTooBig,
-} || std.mem.Allocator.Error || std.fs.File.OpenError || std.fs.File.ReadError;
+    UnsupportedAsset,
+} || std.mem.Allocator.Error || std.fs.File.OpenError || std.fs.File.ReadError || std.json.ParseError(std.json.Scanner);

 pub const AssetType = enum {
    file,
    texture,
+    gltf,

    pub fn getType(comptime self: @This()) type {
        return switch (self) {
            .file => FileLoader,
            .texture => TextureLoader,
+            .gltf => GltfLoader,
        };
    }
 };
@@ -82,6 +91,8 @@ pub const AssetCell = struct {

    fn load(self: *AssetCell, alloc: std.mem.Allocator) void {
        self.loader(self, alloc) catch |e| {
+            if (builtin.mode == .Debug)
+                std.debug.panic("Asset loading error: {s} - {}!\n", .{ self.path, e });
            self.state = .{ .fail = e };
            return;
        };
@@ -113,12 +124,14 @@ pub fn AssetContainer(comptime T: type) type {
                        self.last_state = self.asset_pointer.state;
                    }
                    if (self.last_state == .loaded) {
-                        self.data_pointer = @alignCast(@ptrCast(self.asset_pointer.data));
+                        self.data_pointer = @ptrCast(@alignCast(self.asset_pointer.data));
                        return self.data_pointer;
                    } else return null;
                },
            }
        }
+        // TODO: Add smth like `Assets.immediateLoad`
+
        /// To be used by worker threads to request other assets
        pub fn getSync(self: *@This()) !*T {
            sw: switch (self.last_state) {
@@ -138,7 +151,7 @@ pub fn AssetContainer(comptime T: type) type {
                        self.last_state = self.asset_pointer.state;
                    }
                    if (self.last_state == .loaded) {
-                        self.data_pointer = @alignCast(@ptrCast(self.asset_pointer.data));
+                        self.data_pointer = @ptrCast(@alignCast(self.asset_pointer.data));
                    }
                    continue :sw self.last_state;
                },
@@ -163,11 +176,13 @@ pub fn deinit() void {
        if (worker.thread == null) continue;
        worker.thread.?.join();
    }
+    updateFree();
    var iter = Assets.asset_map.valueIterator();
    while (iter.next()) |asset| {
        std.debug.assert(asset.*.counter == 0);
        if (asset.*.state == .loaded)
            asset.*.unload(Game.alloc);
+        Game.alloc.free(asset.*.path);
        Game.alloc.destroy(asset.*);
    }
    Assets.asset_map.clearAndFree(Game.alloc);
@@ -190,21 +205,28 @@ pub fn update() void {
        Assets.next_worker_update = 0;
    }

-    Assets.free_board_mutex.lock();
-    defer Assets.free_board_mutex.unlock();
-    if (Assets.free_board.items.len == 0) return;
+    updateFree();
+}

+fn updateFree() void {
    // TODO: Delegate freeing to worker threads?
    Assets.asset_map_mutex.lock();
    defer Assets.asset_map_mutex.unlock();
+
+    Assets.free_board_mutex.lock();
    while (Assets.free_board.pop()) |request| {
        if (@atomicLoad(usize, &request.counter, .monotonic) == 0) {
            if (!Assets.asset_map.remove(.{ .type = request.type, .path = request.path })) continue;
-            if (request.state == .loaded)
+            if (request.state == .loaded) {
+                Assets.free_board_mutex.unlock();
                request.unload(Game.alloc);
+                Assets.free_board_mutex.lock();
+            }
+            Game.alloc.free(request.path);
            Game.alloc.destroy(request);
        }
    }
+    Assets.free_board_mutex.unlock();
 }

 pub fn load(comptime asset_type: AssetType, path: []const u8) AssetContainer(asset_type.getType()) {
@@ -259,7 +281,7 @@ fn mapAsset(comptime asset_type: AssetType, path: []const u8) *AssetCell {
            .mutex = .{},
            .type = asset_type,
            .data = undefined,
-            .path = path,
+            .path = Game.alloc.dupe(u8, path) catch err.oom(),
            .loader = Assets.makeLoader(asset_type.getType(), asset_type.getType().load),
            .unloader = Assets.makeUnloader(asset_type.getType(), asset_type.getType().unload),
            .state = .not_loaded,
@@ -284,8 +306,8 @@ fn makeLoader(comptime T: type, comptime func: *const fn ([]const u8, std.mem.Al
 fn makeUnloader(comptime T: type, comptime func: *const fn (T, std.mem.Allocator) void) *const fn (*AssetCell, std.mem.Allocator) void {
    const Container = struct {
        pub fn unloader(cell: *AssetCell, alloc: std.mem.Allocator) void {
-            func(@as(*T, @alignCast(@ptrCast(cell.data))).*, alloc);
-            alloc.destroy(@as(*T, @alignCast(@ptrCast(cell.data))));
+            func(@as(*T, @ptrCast(@alignCast(cell.data))).*, alloc);
+            alloc.destroy(@as(*T, @ptrCast(@alignCast(cell.data))));
        }
    };
    return Container.unloader;
--- a/src/assets/gltf.zig
+++ b/src/assets/gltf.zig
@@ -0,0 +1,389 @@
+const std = @import("std");
+const sdl = @import("sdl");
+const err = @import("../error.zig");
+const Assets = @import("../assets.zig");
+const Graphics = @import("../graphics.zig");
+
+nodes: []Node,
+meshes: []Mesh,
+
+const Node = struct {
+    mesh: u32,
+};
+
+const Mesh = struct {
+    primitives: []Primitive,
+};
+
+const Primitive = struct {
+    vertex_buffer: *sdl.GPUBuffer,
+    index_buffer: ?*sdl.GPUBuffer = null,
+
+    vertices: u32,
+    indices: u32 = 0,
+    texture: Assets.Texture,
+};
+
+const GltfJson = struct {
+    scene: u32,
+    scenes: []GltfSceneJson,
+    nodes: []GltfNodeJson,
+    materials: []GltfMaterialJson,
+    meshes: []GltfMeshJson,
+    textures: []GltfTextureJson,
+    images: []GltfImageJson,
+    accessors: []GltfAccessorJson,
+    bufferViews: []GltfBufferViewJson,
+    samplers: []GltfSamplerJson,
+    buffers: []GltfBufferJson,
+
+    const GltfSceneJson = struct {
+        nodes: []u32,
+    };
+    const GltfNodeJson = struct {
+        mesh: u32,
+    };
+    const GltfMaterialJson = struct {
+        pbrMetallicRoughness: GltfPbrMRJson,
+
+        const GltfPbrMRJson = struct {
+            baseColorTexture: GltfPbrMRBaseColorTexture,
+
+            const GltfPbrMRBaseColorTexture = struct {
+                index: u32,
+            };
+        };
+    };
+    const GltfMeshJson = struct {
+        primitives: []GltfPrimitiveJson,
+
+        const GltfPrimitiveJson = struct {
+            attributes: GltfAttributesJson,
+            indices: u32,
+            material: u32,
+
+            const GltfAttributesJson = struct {
+                POSITION: u32,
+                TEXCOORD_0: u32,
+            };
+        };
+    };
+    const GltfTextureJson = struct {
+        sampler: ?u32,
+        source: u32,
+    };
+    const GltfImageJson = struct {
+        uri: []u8,
+    };
+    const GltfAccessorJson = struct {
+        bufferView: u32,
+        componentType: GltfComponentTypeJson,
+        count: u32,
+        type: GltfAccessorTypeJson,
+
+        const GltfComponentTypeJson = enum(u32) {
+            i8 = 5120,
+            u8 = 5121,
+            i16 = 5122,
+            u16 = 5123,
+            i32 = 5125,
+            f32 = 5126,
+        };
+        const GltfAccessorTypeJson = enum {
+            SCALAR,
+            VEC2,
+            VEC3,
+            VEC4,
+            MAT2,
+            MAT3,
+            MAT4,
+        };
+
+        pub fn slice(accessor: @This(), comptime T: type, views: []const GltfBufferViewJson, buffers: []Assets.File) !?[]align(1) T {
+            if (accessor.bufferView >= views.len) return null;
+            const view = &views[accessor.bufferView];
+
+            if (view.buffer >= buffers.len) return null;
+            const buffer = try buffers[view.buffer].getSync();
+
+            const component_length = switch (T) {
+                [3]f32 => 12,
+                [2]f32 => 8,
+                u16 => 2,
+                else => @compileError("Accessor of " ++ @tagName(accessor.type) ++ " of " ++ @tagName(accessor.componentType) ++ " is not supported."),
+            };
+
+            const start = view.byteOffset;
+            const length = component_length * accessor.count;
+            const end = start + length;
+
+            if (length != view.byteLength) return error.ParsingError;
+
+            return @as([]align(1) T, @ptrCast(buffer.bytes[start..end]));
+        }
+    };
+    const GltfBufferViewJson = struct {
+        buffer: u32,
+        byteLength: u32,
+        byteOffset: u32 = 0,
+    };
+    const GltfSamplerJson = struct {
+        magFilter: GltfFilterJson = .NEAREST,
+        minFilter: GltfFilterJson = .LINEAR,
+        wrapS: GltfWrapJson = .CLAMP_TO_EDGE,
+        wrapT: GltfWrapJson = .CLAMP_TO_EDGE,
+
+        const GltfFilterJson = enum(u32) {
+            NEAREST = 9728,
+            LINEAR = 9729,
+            NEAREST_MIPMAP_NEAREST = 9984,
+            LINEAR_MIPMAP_NEAREST = 9985,
+            NEAREST_MIPMAP_LINEAR = 9986,
+            LINEAR_MIPMAP_LINEAR = 9987,
+        };
+        const GltfWrapJson = enum(u32) {
+            CLAMP_TO_EDGE = 33071,
+            MIRRORED_REPEAT = 33648,
+            REPEAT = 10497,
+        };
+    };
+    const GltfBufferJson = struct {
+        // byteLength: u32,
+        uri: []u8,
+    };
+};
+
+pub fn load(path: []const u8, alloc: std.mem.Allocator) Assets.LoadError!@This() {
+    var json = Assets.load(.file, path);
+    defer Assets.free(json);
+
+    const parsed_gltf = try std.json.parseFromSlice(
+        GltfJson,
+        alloc,
+        (try json.getSync()).bytes,
+        .{ .ignore_unknown_fields = true },
+    );
+    defer parsed_gltf.deinit();
+    const gltf = &parsed_gltf.value;
+
+    if (gltf.scene >= gltf.scenes.len) return error.ParsingError;
+    const scene = &gltf.scenes[gltf.scene];
+
+    var buffers_init: u32 = 0;
+    const buffers = try alloc.alloc(Assets.File, gltf.buffers.len);
+    defer alloc.free(buffers);
+
+    defer for (buffers[0..buffers_init]) |buffer| {
+        Assets.free(buffer);
+    };
+
+    for (0.., buffers) |i, *buffer| {
+        const buffer_path = try std.fs.path.join(alloc, &.{ std.fs.path.dirname(path) orelse return error.ParsingError, gltf.buffers[i].uri });
+        defer alloc.free(buffer_path);
+        buffer.* = Assets.load(.file, buffer_path);
+        buffers_init += 1;
+    }
+
+    const nodes = try alloc.alloc(Node, scene.nodes.len);
+    errdefer alloc.free(nodes);
+
+    var meshes_init: u32 = 0;
+    const meshes = try alloc.alloc(Mesh, gltf.meshes.len);
+    errdefer alloc.free(nodes);
+
+    errdefer for (meshes[0..meshes_init]) |*mesh| {
+        for (mesh.primitives) |*primitive| {
+            sdl.ReleaseGPUBuffer(Graphics.device, primitive.vertex_buffer);
+            if (primitive.index_buffer) |buf| sdl.ReleaseGPUBuffer(Graphics.device, buf);
+            Assets.free(primitive.texture);
+        }
+    };
+
+    for (0.., nodes) |i, *node| {
+        const node_index = scene.nodes[i];
+        if (node_index >= gltf.nodes.len) return error.ParsingError;
+        const gltf_node = &gltf.nodes[node_index];
+        if (gltf_node.mesh >= gltf.meshes.len) return error.ParsingError;
+        node.mesh = gltf_node.mesh;
+    }
+    for (0.., meshes) |i, *mesh| {
+        const gltf_mesh = &gltf.meshes[i];
+
+        var primitivs_init: u32 = 0;
+        const primitives = try alloc.alloc(Primitive, gltf_mesh.primitives.len);
+        errdefer alloc.free(primitives);
+
+        errdefer for (primitives[0..primitivs_init]) |*primitive| {
+            sdl.ReleaseGPUBuffer(Graphics.device, primitive.vertex_buffer);
+            if (primitive.index_buffer) |buf| sdl.ReleaseGPUBuffer(Graphics.device, buf);
+            Assets.free(primitive.texture);
+        };
+
+        for (0.., primitives) |j, *primitive| {
+            const gltf_primitive = gltf_mesh.primitives[j];
+
+            if (gltf_primitive.attributes.POSITION >= gltf.accessors.len) return error.ParsingError;
+            if (gltf_primitive.attributes.TEXCOORD_0 >= gltf.accessors.len) return error.ParsingError;
+            if (gltf_primitive.material >= gltf.materials.len) return error.ParsingError;
+            const material = &gltf.materials[gltf_primitive.material];
+            const texture_index = material.pbrMetallicRoughness.baseColorTexture.index;
+            if (texture_index >= gltf.textures.len) return error.ParsingError;
+            const texture = &gltf.textures[texture_index];
+            if (texture.source >= gltf.images.len) return error.ParsingError;
+            const image = &gltf.images[texture.source];
+
+            const position = try gltf.accessors[gltf_primitive.attributes.POSITION].slice([3]f32, gltf.bufferViews, buffers) orelse return error.ParsingError;
+            const uv = try gltf.accessors[gltf_primitive.attributes.TEXCOORD_0].slice([2]f32, gltf.bufferViews, buffers) orelse return error.ParsingError;
+            const index = try gltf.accessors[gltf_primitive.indices].slice(u16, gltf.bufferViews, buffers) orelse return error.ParsingError;
+
+            primitive.vertex_buffer, primitive.index_buffer = try loadMesh(position, uv, index, alloc);
+            errdefer sdl.ReleaseGPUBuffer(Graphics.device, primitive.vertex_buffer);
+            errdefer sdl.ReleaseGPUBuffer(Graphics.device, primitive.index_buffer);
+
+            primitive.vertices = @intCast(position.len);
+            primitive.indices = @intCast(index.len);
+
+            const texture_path = try std.fs.path.join(alloc, &.{ std.fs.path.dirname(path) orelse return error.ParsingError, image.uri });
+            defer alloc.free(texture_path);
+            primitive.texture = Assets.load(.texture, texture_path);
+
+            primitivs_init += 1;
+        }
+
+        mesh.primitives = primitives;
+        meshes_init += 1;
+    }
+
+    return .{
+        .nodes = nodes,
+        .meshes = meshes,
+    };
+}
+
+pub fn unload(self: @This(), alloc: std.mem.Allocator) void {
+    for (self.meshes) |mesh| {
+        for (mesh.primitives) |*primitive| {
+            sdl.ReleaseGPUBuffer(Graphics.device, primitive.vertex_buffer);
+            sdl.ReleaseGPUBuffer(Graphics.device, primitive.index_buffer);
+            Assets.free(primitive.texture);
+        }
+        alloc.free(mesh.primitives);
+    }
+    alloc.free(self.meshes);
+    alloc.free(self.nodes);
+}
+
+pub fn loadMesh(position: []align(1) const [3]f32, uv: []align(1) const [2]f32, index: []align(1) const u16, alloc: std.mem.Allocator) !struct { *sdl.GPUBuffer, *sdl.GPUBuffer } {
+    if (position.len != uv.len) return error.ParsingError;
+    const vertices: u32 = @intCast(position.len);
+    const indices: u32 = @intCast(index.len);
+
+    const BYTES_PER_VERTEX = 20;
+    const BYTES_PER_INDEX = 2;
+
+    const vertex_buffer = sdl.CreateGPUBuffer(Graphics.device, &.{
+        .size = vertices * BYTES_PER_VERTEX,
+        .usage = sdl.GPU_BUFFERUSAGE_VERTEX,
+    }) orelse return error.SdlError;
+    errdefer sdl.ReleaseGPUBuffer(Graphics.device, vertex_buffer);
+
+    const index_buffer = sdl.CreateGPUBuffer(Graphics.device, &.{
+        .size = indices * 2,
+        .usage = sdl.GPU_BUFFERUSAGE_INDEX,
+    }) orelse return error.SdlError;
+    errdefer sdl.ReleaseGPUBuffer(Graphics.device, index_buffer);
+
+    const TRANSFER_CAPACITY = Graphics.TRANSFER_BUFFER_DEFAULT_CAPACITY;
+
+    const transfer_buffer = sdl.CreateGPUTransferBuffer(Graphics.device, &.{
+        .size = TRANSFER_CAPACITY,
+        .usage = sdl.GPU_TRANSFERBUFFERUSAGE_UPLOAD,
+    }) orelse return error.SdlError;
+    defer sdl.ReleaseGPUTransferBuffer(Graphics.device, transfer_buffer);
+
+    const buffer = try alloc.alloc(u8, TRANSFER_CAPACITY);
+    defer alloc.free(buffer);
+
+    var vertices_uploaded: u32 = 0;
+    while (vertices_uploaded < vertices) {
+        const vertices_to_upload = @min(vertices - vertices_uploaded, TRANSFER_CAPACITY / BYTES_PER_VERTEX);
+        if (vertices_to_upload == 0) return error.FileTooBig;
+
+        for (0..vertices_to_upload) |i| {
+            const V = packed struct { x: f32, y: f32, z: f32, u: f32, v: f32 };
+            std.mem.copyForwards(
+                u8,
+                buffer[BYTES_PER_VERTEX * i ..],
+                &@as([BYTES_PER_VERTEX]u8, @bitCast(V{
+                    .x = position[vertices_uploaded + i][0],
+                    .y = position[vertices_uploaded + i][1],
+                    .z = position[vertices_uploaded + i][2],
+                    .u = uv[vertices_uploaded + i][0],
+                    .v = uv[vertices_uploaded + i][1],
+                })),
+            );
+        }
+
+        const command_buffer = sdl.AcquireGPUCommandBuffer(Graphics.device) orelse return error.SdlError;
+        {
+            errdefer _ = sdl.CancelGPUCommandBuffer(command_buffer);
+            const copy_pass = sdl.BeginGPUCopyPass(command_buffer) orelse return error.SdlError;
+            defer sdl.EndGPUCopyPass(copy_pass);
+
+            const map: [*]u8 = @ptrCast(sdl.MapGPUTransferBuffer(Graphics.device, transfer_buffer, false) orelse err.sdl());
+            @memcpy(map, buffer[0 .. vertices_to_upload * BYTES_PER_VERTEX]);
+            sdl.UnmapGPUTransferBuffer(Graphics.device, transfer_buffer);
+
+            sdl.UploadToGPUBuffer(copy_pass, &.{
+                .transfer_buffer = transfer_buffer,
+            }, &.{
+                .buffer = vertex_buffer,
+                .offset = vertices_uploaded * BYTES_PER_VERTEX,
+                .size = vertices_to_upload * BYTES_PER_VERTEX,
+            }, false);
+        }
+        vertices_uploaded += vertices_to_upload;
+        const fence = sdl.SubmitGPUCommandBufferAndAcquireFence(command_buffer) orelse return error.SdlError;
+        defer sdl.ReleaseGPUFence(Graphics.device, fence);
+        if (!sdl.WaitForGPUFences(Graphics.device, true, &fence, 1)) return error.SdlError;
+    }
+
+    var indices_uploaded: u32 = 0;
+    while (indices_uploaded < indices) {
+        const indices_to_upload = @min(indices - indices_uploaded, TRANSFER_CAPACITY / BYTES_PER_INDEX);
+        if (indices_to_upload == 0) return error.FileTooBig;
+
+        for (0..indices_to_upload) |i| {
+            std.mem.copyForwards(
+                u8,
+                buffer[BYTES_PER_INDEX * i ..],
+                &@as([BYTES_PER_INDEX]u8, @bitCast(index[i])),
+            );
+        }
+
+        const command_buffer = sdl.AcquireGPUCommandBuffer(Graphics.device) orelse return error.SdlError;
+        {
+            errdefer _ = sdl.CancelGPUCommandBuffer(command_buffer);
+            const copy_pass = sdl.BeginGPUCopyPass(command_buffer) orelse return error.SdlError;
+            defer sdl.EndGPUCopyPass(copy_pass);
+
+            const map: [*]u8 = @ptrCast(sdl.MapGPUTransferBuffer(Graphics.device, transfer_buffer, false) orelse err.sdl());
+            @memcpy(map, buffer[0 .. indices_to_upload * BYTES_PER_INDEX]);
+            sdl.UnmapGPUTransferBuffer(Graphics.device, transfer_buffer);
+
+            sdl.UploadToGPUBuffer(copy_pass, &.{
+                .transfer_buffer = transfer_buffer,
+            }, &.{
+                .buffer = index_buffer,
+                .offset = indices_uploaded * BYTES_PER_INDEX,
+                .size = indices_to_upload * BYTES_PER_INDEX,
+            }, false);
+        }
+        indices_uploaded += indices_to_upload;
+        const fence = sdl.SubmitGPUCommandBufferAndAcquireFence(command_buffer) orelse return error.SdlError;
+        defer sdl.ReleaseGPUFence(Graphics.device, fence);
+        if (!sdl.WaitForGPUFences(Graphics.device, true, &fence, 1)) return error.SdlError;
+    }
+
+    return .{ vertex_buffer, index_buffer };
+}
--- a/src/assets/texture.zig
+++ b/src/assets/texture.zig
@@ -1,7 +1,6 @@
 const std = @import("std");
 const sdl = @import("sdl");
 const err = @import("../error.zig");
-const c = @import("../c.zig");
 const Assets = @import("../assets.zig");
 const Graphics = @import("../graphics.zig");

@@ -14,34 +13,30 @@ pub fn load(path: []const u8, alloc: std.mem.Allocator) Assets.LoadError!@This()
    defer Assets.free(file);
    const data = (file.getSync() catch return error.DependencyError).bytes;

-    var width: u32 = undefined;
-    var height: u32 = undefined;
-    var channels: u32 = undefined;
-    const image = c.stbi_load_from_memory(
-        @ptrCast(data),
-        @intCast(data.len),
-        @ptrCast(&width),
-        @ptrCast(&height),
-        @ptrCast(&channels),
-        4,
-    );
-    if (image == null) return error.ParsingError;
-    defer c.stbi_image_free(image);
-    const image_slice = image[0..@intCast(width * height * channels)];
+    const image: *sdl.Surface = @ptrCast(sdl.IMG_Load_IO(sdl.IOFromConstMem(data.ptr, data.len), true) orelse return error.ParsingError);
+    defer sdl.DestroySurface(image);
+    const format = image.format;
+
+    const width: u32 = @intCast(image.w);
+    const height: u32 = @intCast(image.h);
+    const channels: u32 = 4;
+
+    const image_slice = @as([*]u8, @ptrCast(image.pixels))[0..@intCast(width * height * channels)];

    if (width > 8192 or height > 8192) return error.FileTooBig;

    const target_format = sdl.GPU_TEXTUREFORMAT_R8G8B8A8_UNORM;
    const bytes_per_pixel = 4;
-    const mip_level = if(std.math.isPowerOfTwo(width) and width == height) @as(u32, Graphics.MIP_LEVEL) else @as(u32, 1);
+    const mip_level = if (std.math.isPowerOfTwo(width) and width == height) @as(u32, Graphics.MIP_LEVEL) else @as(u32, 1);

-    const texture = Graphics.createTexture(
-        width,
-        height,
-        target_format,
-        sdl.GPU_TEXTUREUSAGE_SAMPLER | sdl.GPU_TEXTUREUSAGE_COLOR_TARGET,
-        mip_level,
-    );
+    const texture = sdl.CreateGPUTexture(Graphics.device, &.{
+        .width = width,
+        .height = height,
+        .layer_count_or_depth = 1,
+        .format = target_format,
+        .usage = sdl.GPU_TEXTUREUSAGE_SAMPLER | sdl.GPU_TEXTUREUSAGE_COLOR_TARGET,
+        .num_levels = mip_level,
+    }) orelse err.sdl();
    errdefer Graphics.freeTexture(texture);

    const transfer_buffer_capacity = Graphics.TRANSFER_BUFFER_DEFAULT_CAPACITY;
@@ -63,6 +58,43 @@ pub fn load(path: []const u8, alloc: std.mem.Allocator) Assets.LoadError!@This()
            defer sdl.EndGPUCopyPass(copy_pass);

            const map: [*]u8 = @ptrCast(sdl.MapGPUTransferBuffer(Graphics.device, transfer_buffer, false) orelse err.sdl());
+            var pixel: u32 = rows_uploaded * width * bytes_per_pixel;
+            var mapped: u32 = 0;
+            while (pixel < (rows_uploaded + rows_to_upload) * width * bytes_per_pixel) {
+                defer pixel += bytes_per_pixel;
+                defer mapped += bytes_per_pixel;
+                switch (format) {
+                    // Convert to RGBA8888
+                    sdl.PIXELFORMAT_ABGR8888 => {
+                        map[mapped + 0] = image_slice[pixel + 3];
+                        map[mapped + 1] = image_slice[pixel + 2];
+                        map[mapped + 2] = image_slice[pixel + 1];
+                        map[mapped + 3] = image_slice[pixel + 0];
+                    },
+                    sdl.PIXELFORMAT_ARGB8888 => {
+                        map[mapped + 0] = image_slice[pixel + 1];
+                        map[mapped + 1] = image_slice[pixel + 2];
+                        map[mapped + 2] = image_slice[pixel + 3];
+                        map[mapped + 3] = image_slice[pixel + 0];
+                    },
+                    sdl.PIXELFORMAT_RGBA8888 => {
+                        map[mapped + 0] = image_slice[pixel + 0];
+                        map[mapped + 1] = image_slice[pixel + 1];
+                        map[mapped + 2] = image_slice[pixel + 2];
+                        map[mapped + 3] = image_slice[pixel + 3];
+                    },
+                    sdl.PIXELFORMAT_BGRA8888 => {
+                        map[mapped + 0] = image_slice[pixel + 2];
+                        map[mapped + 1] = image_slice[pixel + 1];
+                        map[mapped + 2] = image_slice[pixel + 0];
+                        map[mapped + 3] = image_slice[pixel + 3];
+                    },
+                    else => {
+                        sdl.UnmapGPUTransferBuffer(Graphics.device, transfer_buffer);
+                        return error.UnsupportedAsset;
+                    },
+                }
+            }
            @memcpy(map, image_slice[(rows_uploaded * width * bytes_per_pixel)..((rows_uploaded + rows_to_upload) * width * bytes_per_pixel)]);
            sdl.UnmapGPUTransferBuffer(Graphics.device, transfer_buffer);

--- a/src/c.zig
+++ b/src/c.zig
@@ -1,8 +0,0 @@
-pub usingnamespace @cImport({
-    @cDefine("STBI_NO_GIF", "1");
-    @cDefine("STBI_NO_JPEG", "1");
-    @cDefine("STBI_NO_HDR", "1");
-    @cDefine("STBI_NO_TGA", "1");
-    @cDefine("STB_IMAGE_IMPLEMENTATION", "1");
-    @cInclude("stb_image.h");
-});
--- a/src/error.zig
+++ b/src/error.zig
@@ -14,7 +14,3 @@ const FileError = std.mem.Allocator.Error || std.fs.File.OpenError || std.fs.Fil
 pub fn file(err: FileError, path: []const u8) noreturn {
    std.debug.panic("Error while reading \"{s}\": {any}", .{ path, err });
 }
-
-pub fn stbi() noreturn {
-    std.debug.panic("STBI error!\n", .{});
-}
--- a/src/game.zig
+++ b/src/game.zig
@@ -116,6 +116,18 @@ fn processEvents() void {
                sdl.EVENT_MOUSE_WHEEL => {
                    Game.mouse.wheel += event.wheel.integer_y;
                },
+                sdl.EVENT_WINDOW_RESIZED => {
+                    if (event.window.data1 < 1 or event.window.data2 < 1) continue;
+
+                    Graphics.window_width = @intCast(event.window.data1);
+                    Graphics.window_height = @intCast(event.window.data2);
+                },
+                sdl.EVENT_WINDOW_PIXEL_SIZE_CHANGED => {
+                    if (event.window.data1 < 1 or event.window.data2 < 1) continue;
+
+                    Graphics.pixel_width = @intCast(event.window.data1);
+                    Graphics.pixel_height = @intCast(event.window.data2);
+                },
                else => {},
            }
        }
--- a/src/graphics.zig
+++ b/src/graphics.zig
@@ -2,51 +2,89 @@ const std = @import("std");
 const sdl = @import("sdl");
 const err = @import("error.zig");
 const presets = @import("graphics/presets.zig");
+const Game = @import("game.zig");
 const Assets = @import("assets.zig");

 pub const Transform = @import("graphics/transform.zig");
 pub const Camera = @import("graphics/camera.zig");

-pub const Mesh = struct {
-    vertex_start: usize,
-    vertex_count: usize,
-};
-
 pub var window: *sdl.Window = undefined;
 pub var device: *sdl.GPUDevice = undefined;
 /// Only available while drawing
 var command_buffer: ?*sdl.GPUCommandBuffer = null;
 var render_pass: ?*sdl.GPURenderPass = null;
 var render_target: ?*sdl.GPUTexture = null;
+var batches: Batches = undefined;

 var shader_vert: *sdl.GPUShader = undefined;
 var shader_frag: *sdl.GPUShader = undefined;

-var vertex_buffer: *sdl.GPUBuffer = undefined;
-var vertex_buffer_capacity: usize = undefined;
-var vertex_buffer_used: usize = undefined;
-
-var transfer_buffer: *sdl.GPUTransferBuffer = undefined;
-var transfer_buffer_capacity: usize = undefined;
-
 var depth_texture: *sdl.GPUTexture = undefined;
-var fsaa_target: *sdl.GPUTexture = undefined;
+var antialias: Antialias = undefined;
+var aa_target: *sdl.GPUTexture = undefined;
 var pipeline: *sdl.GPUGraphicsPipeline = undefined;

 pub var window_width: u32 = undefined;
 pub var window_height: u32 = undefined;
-var fsaa_scale: u32 = 4;
-var fsaa_level: u32 = 3;
+pub var pixel_width: u32 = undefined;
+pub var pixel_height: u32 = undefined;
+var render_width: u32 = undefined;
+var render_height: u32 = undefined;

 pub var camera: Camera = undefined;

-const VERTEX_BUFFER_DEFAULT_CAPACITY = 1024;
-const VERTEX_BUFFER_GROWTH_MULTIPLIER = 2;
 const BYTES_PER_VERTEX = 5 * 4;
 const DEPTH_FORMAT = sdl.GPU_TEXTUREFORMAT_D32_FLOAT;
-pub const TRANSFER_BUFFER_DEFAULT_CAPACITY = 256 * 1024;
+pub const TRANSFER_BUFFER_DEFAULT_CAPACITY = 512 * 1024;
 pub const MIP_LEVEL = 4;

+const Antialias = union(enum) {
+    none,
+    msaa: enum(sdl.GPUSampleCount) {
+        @"2" = sdl.GPU_SAMPLECOUNT_2,
+        @"4" = sdl.GPU_SAMPLECOUNT_4,
+        @"8" = sdl.GPU_SAMPLECOUNT_8,
+    },
+    fsaa: enum {
+        @"2",
+        @"4",
+        @"8",
+    },
+
+    pub fn getMsaaSamples(self: @This()) sdl.GPUSampleCount {
+        if (self != .msaa) return sdl.GPU_SAMPLECOUNT_1;
+        return @intFromEnum(self.msaa);
+    }
+    pub fn getFsaaScale(self: @This()) u8 {
+        if (self != .fsaa) return 1;
+        return switch (self.fsaa) {
+            .@"2" => 2,
+            .@"4" => 4,
+            .@"8" => 8,
+        };
+    }
+    pub fn getFsaaLevel(self: @This()) u8 {
+        if (self != .fsaa) return 1;
+        return switch (self.fsaa) {
+            .@"2" => 2,
+            .@"4" => 3,
+            .@"8" => 4,
+        };
+    }
+};
+
+const Batch = struct {
+    object: *Assets.Object,
+    transform: Transform,
+    z: f32,
+
+    fn orderLessThan(ctx: void, lhs: Batch, rhs: Batch) bool {
+        _ = ctx;
+        return lhs.z > rhs.z;
+    }
+};
+const Batches = std.ArrayListUnmanaged(Batch);
+
 const Graphics = @This();
 pub fn create() void {
    // Init
@@ -59,8 +97,19 @@ pub fn create() void {
        "",
        1600,
        900,
-        sdl.WINDOW_VULKAN | sdl.WINDOW_RESIZABLE,
+        sdl.WINDOW_VULKAN | sdl.WINDOW_RESIZABLE | sdl.WINDOW_HIGH_PIXEL_DENSITY,
    ) orelse err.sdl();
+    if (!sdl.GetWindowSizeInPixels(Graphics.window, @ptrCast(&Graphics.window_width), @ptrCast(&Graphics.window_height))) {
+        Graphics.window_width = 1600;
+        Graphics.window_height = 900;
+    }
+    const scale = sdl.GetWindowDisplayScale(Graphics.window);
+    Graphics.pixel_width = @intFromFloat(@round(scale * @as(f32, @floatFromInt(Graphics.window_width))));
+    Graphics.pixel_height = @intFromFloat(@round(scale * @as(f32, @floatFromInt(Graphics.window_height))));
+    Graphics.render_width = pixel_width;
+    Graphics.render_height = pixel_height;
+
+    Graphics.antialias = .none;

    // Device
    Graphics.device = sdl.CreateGPUDevice(
@@ -92,39 +141,27 @@ pub fn create() void {
        },
    );

-    Graphics.vertex_buffer = sdl.CreateGPUBuffer(Graphics.device, &.{
-        .usage = sdl.GPU_BUFFERUSAGE_VERTEX,
-        .size = VERTEX_BUFFER_DEFAULT_CAPACITY,
-    }) orelse err.sdl();
-    Graphics.vertex_buffer_capacity = VERTEX_BUFFER_DEFAULT_CAPACITY;
-    Graphics.vertex_buffer_used = 0;
-
-    Graphics.transfer_buffer = sdl.CreateGPUTransferBuffer(Graphics.device, &.{
-        .size = TRANSFER_BUFFER_DEFAULT_CAPACITY,
-        .usage = sdl.GPU_TRANSFERBUFFERUSAGE_UPLOAD | sdl.GPU_TRANSFERBUFFERUSAGE_DOWNLOAD,
-    }) orelse err.sdl();
-    Graphics.transfer_buffer_capacity = TRANSFER_BUFFER_DEFAULT_CAPACITY;
-
    const target_format = sdl.GetGPUSwapchainTextureFormat(Graphics.device, Graphics.window);
    if (target_format == sdl.GPU_TEXTUREFORMAT_INVALID) err.sdl();

-    // TODO: Clean
-    if (!sdl.GetWindowSizeInPixels(Graphics.window, @ptrCast(&Graphics.window_width), @ptrCast(&Graphics.window_height))) err.sdl();
-
-    Graphics.depth_texture = createTexture(
-        @as(u32, @intCast(Graphics.window_width)) * Graphics.fsaa_scale,
-        @as(u32, @intCast(Graphics.window_height)) * Graphics.fsaa_scale,
-        DEPTH_FORMAT,
-        sdl.GPU_TEXTUREUSAGE_DEPTH_STENCIL_TARGET,
-        1,
-    );
-    Graphics.fsaa_target = createTexture(
-        @as(u32, @intCast(Graphics.window_width)) * Graphics.fsaa_scale,
-        @as(u32, @intCast(Graphics.window_height)) * Graphics.fsaa_scale,
-        target_format,
-        sdl.GPU_TEXTUREUSAGE_COLOR_TARGET | sdl.GPU_TEXTUREUSAGE_SAMPLER,
-        fsaa_level,
-    );
+    Graphics.depth_texture = sdl.CreateGPUTexture(device, &.{
+        .width = Graphics.render_width * Graphics.antialias.getFsaaScale(),
+        .height = Graphics.render_height * Graphics.antialias.getFsaaScale(),
+        .layer_count_or_depth = 1,
+        .format = DEPTH_FORMAT,
+        .usage = sdl.GPU_TEXTUREUSAGE_DEPTH_STENCIL_TARGET,
+        .num_levels = 1,
+        .sample_count = Graphics.antialias.getMsaaSamples(),
+    }) orelse err.sdl();
+    Graphics.aa_target = sdl.CreateGPUTexture(device, &.{
+        .width = Graphics.render_width * Graphics.antialias.getFsaaScale(),
+        .height = Graphics.render_height * Graphics.antialias.getFsaaScale(),
+        .layer_count_or_depth = 1,
+        .format = target_format,
+        .usage = if (Graphics.antialias == .fsaa) sdl.GPU_TEXTUREUSAGE_COLOR_TARGET | sdl.GPU_TEXTUREUSAGE_SAMPLER else sdl.GPU_TEXTUREUSAGE_COLOR_TARGET,
+        .num_levels = Graphics.antialias.getFsaaLevel(),
+        .sample_count = Graphics.antialias.getMsaaSamples(),
+    }) orelse err.sdl();

    Graphics.pipeline = sdl.CreateGPUGraphicsPipeline(Graphics.device, &.{
        .vertex_shader = Graphics.shader_vert,
@@ -152,6 +189,9 @@ pub fn create() void {
            },
            .num_vertex_attributes = 2,
        },
+        .multisample_state = .{
+            .sample_count = Graphics.antialias.getMsaaSamples(),
+        },
        .primitive_type = sdl.GPU_PRIMITIVETYPE_TRIANGLELIST,
        .rasterizer_state = presets.RASTERIZER_CULL,
        .depth_stencil_state = presets.DEPTH_ENABLED,
@@ -166,10 +206,11 @@ pub fn create() void {
        },
    }) orelse err.sdl();

+    Graphics.batches = Batches.empty;
+
    Graphics.camera = Camera{
        .transform = .{},
        .near = 1.0 / 16.0,
-        .far = 128.0,
        .lens = 1.5,
        .aspect = 16.0 / 9.0,
        .matrix = undefined,
@@ -181,10 +222,8 @@ pub fn destroy() void {
    sdl.DestroyWindow(Graphics.window);

    sdl.ReleaseGPUGraphicsPipeline(Graphics.device, Graphics.pipeline);
-    sdl.ReleaseGPUTexture(Graphics.device, Graphics.fsaa_target);
+    sdl.ReleaseGPUTexture(Graphics.device, Graphics.aa_target);
    sdl.ReleaseGPUTexture(Graphics.device, Graphics.depth_texture);
-    sdl.ReleaseGPUBuffer(Graphics.device, Graphics.vertex_buffer);
-    sdl.ReleaseGPUTransferBuffer(Graphics.device, Graphics.transfer_buffer);

    sdl.ReleaseGPUShader(Graphics.device, Graphics.shader_vert);
    sdl.ReleaseGPUShader(Graphics.device, Graphics.shader_frag);
@@ -194,98 +233,7 @@ pub fn destroy() void {
        Graphics.command_buffer = null;
    }
    sdl.DestroyGPUDevice(Graphics.device);
-}
-
-pub fn loadMesh(mesh_bytes: []const u8) Mesh {
-    std.debug.assert(mesh_bytes.len < Graphics.transfer_buffer_capacity);
-
-    var size_mult: usize = 1;
-    while (Graphics.vertex_buffer_used + mesh_bytes.len > Graphics.vertex_buffer_capacity * size_mult) {
-        size_mult *= VERTEX_BUFFER_GROWTH_MULTIPLIER;
-    }
-    if (size_mult > 1) {
-        Graphics.growVertexBuffer(Graphics.vertex_buffer_capacity * size_mult);
-    }
-
-    const map = sdl.MapGPUTransferBuffer(Graphics.device, Graphics.transfer_buffer, true) orelse err.sdl();
-    @memcpy(@as([*]u8, @ptrCast(map)), mesh_bytes);
-    sdl.UnmapGPUTransferBuffer(Graphics.device, Graphics.transfer_buffer);
-
-    const temp_command_buffer = sdl.AcquireGPUCommandBuffer(Graphics.device) orelse err.sdl();
-    const fence = blk: {
-        const copy_pass = sdl.BeginGPUCopyPass(temp_command_buffer) orelse err.sdl();
-        sdl.UploadToGPUBuffer(copy_pass, &.{
-            .transfer_buffer = Graphics.transfer_buffer,
-            .offset = 0,
-        }, &.{
-            .buffer = Graphics.vertex_buffer,
-            .offset = @intCast(Graphics.vertex_buffer_used),
-            .size = @intCast(mesh_bytes.len),
-        }, false);
-        sdl.EndGPUCopyPass(copy_pass);
-
-        break :blk sdl.SubmitGPUCommandBufferAndAcquireFence(temp_command_buffer) orelse err.sdl();
-    };
-    defer sdl.ReleaseGPUFence(Graphics.device, fence);
-
-    if (!sdl.WaitForGPUFences(Graphics.device, true, &fence, 1)) err.sdl();
-
-    const vertex_start = Graphics.vertex_buffer_used;
-    Graphics.vertex_buffer_used += mesh_bytes.len;
-
-    return Mesh{
-        .vertex_start = vertex_start / BYTES_PER_VERTEX,
-        .vertex_count = mesh_bytes.len / BYTES_PER_VERTEX,
-    };
-}
-
-pub fn unloadMesh(mesh: Mesh) void {
-    // TODO: free some memory
-    _ = &mesh;
-}
-
-fn growVertexBuffer(new_size: usize) void {
-    const new_buffer = sdl.CreateGPUBuffer(Graphics.device, &.{
-        .size = @intCast(new_size),
-        .usage = sdl.GPU_BUFFERUSAGE_VERTEX,
-    }) orelse err.sdl();
-
-    const temp_command_buffer = sdl.AcquireGPUCommandBuffer(Graphics.device) orelse err.sdl();
-
-    const fence = blk: {
-        const copy_pass = sdl.BeginGPUCopyPass(temp_command_buffer);
-        var copied: usize = 0;
-        while (copied < Graphics.vertex_buffer_used) {
-            const to_transer = @min(Graphics.vertex_buffer_used - copied, Graphics.transfer_buffer_capacity);
-            sdl.DownloadFromGPUBuffer(copy_pass, &.{
-                .buffer = Graphics.vertex_buffer,
-                .offset = @intCast(copied),
-                .size = @intCast(to_transer),
-            }, &.{
-                .transfer_buffer = Graphics.transfer_buffer,
-                .offset = 0,
-            });
-            sdl.UploadToGPUBuffer(copy_pass, &.{
-                .transfer_buffer = Graphics.transfer_buffer,
-                .offset = 0,
-            }, &.{
-                .buffer = new_buffer,
-                .offset = @intCast(copied),
-                .size = @intCast(to_transer),
-            }, false);
-            copied += to_transer;
-        }
-        sdl.EndGPUCopyPass(copy_pass);
-
-        break :blk sdl.SubmitGPUCommandBufferAndAcquireFence(temp_command_buffer) orelse err.sdl();
-    };
-    defer sdl.ReleaseGPUFence(Graphics.device, fence);
-
-    if (!sdl.WaitForGPUFences(Graphics.device, true, &fence, 1)) err.sdl();
-
-    sdl.ReleaseGPUBuffer(Graphics.device, Graphics.vertex_buffer);
-    Graphics.vertex_buffer = new_buffer;
-    Graphics.vertex_buffer_capacity = new_size;
+    Graphics.batches.clearAndFree(Game.alloc);
 }

 /// If window is minimized returns `false`, `render_pass` remains null
@@ -299,22 +247,23 @@ pub fn beginDraw() bool {
    // Window is probably hidden
    if (Graphics.render_target == null or width == 0 or height == 0) return false;

-    if (width != Graphics.window_width or height != Graphics.window_height) {
-        Graphics.resetTextures(width, height);
-        Graphics.camera.aspect = @as(f32, @floatFromInt(width)) / @as(f32, @floatFromInt(height));
-        Graphics.window_width = width;
-        Graphics.window_height = height;
+    if (Graphics.render_width != Graphics.pixel_width or Graphics.render_height != Graphics.pixel_height) {
+        Graphics.render_width = Graphics.pixel_width;
+        Graphics.render_height = Graphics.pixel_height;
+        Graphics.resetTextures(Graphics.render_width, Graphics.render_height);
+        Graphics.camera.aspect = @as(f32, @floatFromInt(Graphics.render_width)) / @as(f32, @floatFromInt(Graphics.render_height));
    }

    Graphics.render_pass = sdl.BeginGPURenderPass(Graphics.command_buffer.?, &.{
        .clear_color = .{ .r = 0.0, .g = 0.0, .b = 0.0, .a = 1.0 },
        .cycle = false,
-        .load_op = sdl.GPU_LOADOP_CLEAR,
-        .store_op = sdl.GPU_STOREOP_STORE,
+        .load_op = sdl.GPU_LOADOP_DONT_CARE,
+        .store_op = if (Graphics.antialias == .msaa) sdl.GPU_STOREOP_RESOLVE else sdl.GPU_STOREOP_STORE,
        .mip_level = 0,
-        .texture = Graphics.fsaa_target,
+        .texture = if (Graphics.antialias == .fsaa or Graphics.antialias == .msaa) Graphics.aa_target else Graphics.render_target,
+        .resolve_texture = if (Graphics.antialias == .msaa) Graphics.render_target else null,
    }, 1, &.{
-        .clear_depth = 1.0,
+        .clear_depth = 0.0,
        .load_op = sdl.GPU_LOADOP_CLEAR,
        .store_op = sdl.GPU_STOREOP_DONT_CARE,
        .stencil_load_op = sdl.GPU_STOREOP_DONT_CARE,
@@ -323,25 +272,52 @@ pub fn beginDraw() bool {
    }) orelse err.sdl();

    sdl.BindGPUGraphicsPipeline(Graphics.render_pass, Graphics.pipeline);
-    sdl.BindGPUVertexBuffers(Graphics.render_pass, 0, &.{ .offset = 0, .buffer = Graphics.vertex_buffer }, 1);
    Graphics.camera.computeMatrix();
    sdl.PushGPUVertexUniformData(Graphics.command_buffer, 0, &Graphics.camera.matrix, 16 * 4);

    return true;
 }

-pub fn clearDepth() void {
+fn finishPass() void {
+    std.sort.block(Batch, Graphics.batches.items, {}, Batch.orderLessThan);
+
+    for (Graphics.batches.items) |*batch| {
+        const asset_object = batch.object.get() orelse continue;
+
+        sdl.PushGPUVertexUniformData(Graphics.command_buffer, 1, &batch.transform.matrix(), 16 * 4);
+        for (asset_object.nodes) |node| {
+            const mesh = &asset_object.meshes[node.mesh];
+
+            for (mesh.primitives) |*primitive| {
+                const asset_texture = primitive.texture.get() orelse continue;
+                sdl.BindGPUFragmentSamplers(Graphics.render_pass, 0, &sdl.GPUTextureSamplerBinding{
+                    .texture = asset_texture.texture,
+                    .sampler = asset_texture.sampler,
+                }, 1);
+                sdl.BindGPUVertexBuffers(Graphics.render_pass, 0, &.{ .offset = 0, .buffer = primitive.vertex_buffer }, 1);
+                sdl.BindGPUIndexBuffer(Graphics.render_pass, &.{ .buffer = primitive.index_buffer }, sdl.GPU_INDEXELEMENTSIZE_16BIT);
+                sdl.DrawGPUIndexedPrimitives(Graphics.render_pass, primitive.indices, 1, 0, 0, 0);
+            }
+        }
+    }
+    Graphics.batches.clearRetainingCapacity();
+
    sdl.EndGPURenderPass(Graphics.render_pass.?);
+}
+
+pub fn clearDepth() void {
+    Graphics.finishPass();

    Graphics.render_pass = sdl.BeginGPURenderPass(Graphics.command_buffer.?, &.{
        .clear_color = .{ .r = 0.0, .g = 0.0, .b = 0.0, .a = 1.0 },
        .cycle = false,
        .load_op = sdl.GPU_LOADOP_LOAD,
-        .store_op = sdl.GPU_STOREOP_STORE,
+        .store_op = if (Graphics.antialias == .msaa) sdl.GPU_STOREOP_RESOLVE else sdl.GPU_STOREOP_STORE,
        .mip_level = 0,
-        .texture = Graphics.fsaa_target,
+        .texture = if (Graphics.antialias == .fsaa or Graphics.antialias == .msaa) Graphics.aa_target else Graphics.render_target,
+        .resolve_texture = if (Graphics.antialias == .msaa) Graphics.render_target else null,
    }, 1, &.{
-        .clear_depth = 1.0,
+        .clear_depth = 0.0,
        .load_op = sdl.GPU_LOADOP_CLEAR,
        .store_op = sdl.GPU_STOREOP_DONT_CARE,
        .stencil_load_op = sdl.GPU_STOREOP_DONT_CARE,
@@ -350,40 +326,50 @@ pub fn clearDepth() void {
    }) orelse err.sdl();

    sdl.BindGPUGraphicsPipeline(Graphics.render_pass, Graphics.pipeline);
-    sdl.BindGPUVertexBuffers(Graphics.render_pass, 0, &.{ .offset = 0, .buffer = Graphics.vertex_buffer }, 1);
    sdl.PushGPUVertexUniformData(Graphics.command_buffer, 0, &Graphics.camera.matrix, 16 * 4);
 }

-pub fn drawMesh(mesh: Mesh, texture: *Assets.Texture, transform: Transform) void {
+// `object`: pointer MUST be vaild until current render pass ends
+pub fn drawObject(object: *Assets.Object, transform: Transform) void {
    if (Graphics.render_pass == null) return;
-    const asset_texture = texture.get() orelse return;

-    sdl.PushGPUVertexUniformData(Graphics.command_buffer, 1, &transform.matrix(), 16 * 4);
-    sdl.BindGPUFragmentSamplers(Graphics.render_pass, 0, &sdl.GPUTextureSamplerBinding{
-        .texture = asset_texture.texture,
-        .sampler = asset_texture.sampler,
-    }, 1);
-    sdl.DrawGPUPrimitives(Graphics.render_pass, @intCast(mesh.vertex_count), 1, @intCast(mesh.vertex_start), 0);
+    @setFloatMode(.optimized);
+    const z = Graphics.camera.matrix[8] * transform.position[0] +
+        Graphics.camera.matrix[9] * transform.position[1] +
+        Graphics.camera.matrix[10] * transform.position[2] +
+        Graphics.camera.matrix[11];
+    var w = Graphics.camera.matrix[12] * transform.position[0] +
+        Graphics.camera.matrix[13] * transform.position[1] +
+        Graphics.camera.matrix[14] * transform.position[2] +
+        Graphics.camera.matrix[15];
+    if (w == 0) w = 1;
+
+    Graphics.batches.append(Game.alloc, .{
+        .object = object,
+        .transform = transform,
+        .z = z / w,
+    }) catch err.oom();
 }

 pub fn endDraw() void {
    defer Graphics.command_buffer = null;
    defer Graphics.render_pass = null;
-    if (Graphics.render_pass) |pass| {
-        sdl.EndGPURenderPass(pass);

-        if (Graphics.fsaa_level > 1) sdl.GenerateMipmapsForGPUTexture(Graphics.command_buffer, Graphics.fsaa_target);
+    Graphics.finishPass();
+
+    if (Graphics.antialias == .fsaa) {
+        sdl.GenerateMipmapsForGPUTexture(Graphics.command_buffer, Graphics.aa_target);
        sdl.BlitGPUTexture(Graphics.command_buffer, &.{
            .source = .{
-                .texture = Graphics.fsaa_target,
-                .w = Graphics.window_width,
-                .h = Graphics.window_height,
-                .mip_level = fsaa_level - 1,
+                .texture = Graphics.aa_target,
+                .w = Graphics.render_width,
+                .h = Graphics.render_height,
+                .mip_level = Graphics.antialias.getFsaaLevel() - 1,
            },
            .destination = .{
                .texture = Graphics.render_target,
-                .w = Graphics.window_width,
-                .h = Graphics.window_height,
+                .w = Graphics.render_width,
+                .h = Graphics.render_height,
            },
            .load_op = sdl.GPU_LOADOP_DONT_CARE,
            .filter = sdl.GPU_FILTER_NEAREST,
@@ -396,7 +382,7 @@ fn loadShader(path: []const u8, info: sdl.GPUShaderCreateInfo) *sdl.GPUShader {
    const file = std.fs.cwd().openFile(path, .{}) catch |e| err.file(e, path);
    defer file.close();

-    const code = file.readToEndAllocOptions(std.heap.c_allocator, std.math.maxInt(usize), null, 1, 0) catch |e| err.file(e, path);
+    const code = file.readToEndAllocOptions(std.heap.c_allocator, std.math.maxInt(usize), null, .@"1", 0) catch |e| err.file(e, path);
    defer std.heap.c_allocator.free(code);

    var updated_info = info;
@@ -405,18 +391,6 @@ fn loadShader(path: []const u8, info: sdl.GPUShaderCreateInfo) *sdl.GPUShader {
    return sdl.CreateGPUShader(device, &updated_info) orelse err.sdl();
 }

-pub fn createTexture(width: u32, height: u32, format: c_uint, usage: c_uint, mip_level: u32) *sdl.GPUTexture {
-    return sdl.CreateGPUTexture(device, &.{
-        .format = format,
-        .layer_count_or_depth = 1,
-        .width = width,
-        .height = height,
-        .num_levels = mip_level,
-        .sample_count = sdl.GPU_SAMPLECOUNT_1,
-        .usage = usage,
-    }) orelse err.sdl();
-}
-
 pub fn freeTexture(texture: *sdl.GPUTexture) void {
    sdl.ReleaseGPUTexture(Graphics.device, texture);
 }
@@ -441,24 +415,32 @@ pub fn freeSampler(sampler: *sdl.GPUSampler) void {

 fn resetTextures(width: u32, height: u32) void {
    sdl.ReleaseGPUTexture(Graphics.device, Graphics.depth_texture);
-    Graphics.depth_texture = createTexture(
-        width * Graphics.fsaa_scale,
-        height * Graphics.fsaa_scale,
-        DEPTH_FORMAT,
-        sdl.GPU_TEXTUREUSAGE_DEPTH_STENCIL_TARGET,
-        1,
-    );
+    Graphics.depth_texture = sdl.CreateGPUTexture(device, &.{
+        .width = width * Graphics.antialias.getFsaaScale(),
+        .height = height * Graphics.antialias.getFsaaScale(),
+        .layer_count_or_depth = 1,
+        .format = DEPTH_FORMAT,
+        .usage = sdl.GPU_TEXTUREUSAGE_DEPTH_STENCIL_TARGET,
+        .num_levels = 1,
+        .sample_count = Graphics.antialias.getMsaaSamples(),
+    }) orelse err.sdl();

    const target_format = sdl.GetGPUSwapchainTextureFormat(Graphics.device, Graphics.window);

-    sdl.ReleaseGPUTexture(Graphics.device, Graphics.fsaa_target);
-    Graphics.fsaa_target = createTexture(
-        width * Graphics.fsaa_scale,
-        height * Graphics.fsaa_scale,
-        target_format,
-        sdl.GPU_TEXTUREUSAGE_COLOR_TARGET | sdl.GPU_TEXTUREUSAGE_SAMPLER,
-        fsaa_level,
-    );
+    sdl.ReleaseGPUTexture(Graphics.device, Graphics.aa_target);
+    Graphics.aa_target = sdl.CreateGPUTexture(device, &.{
+        .width = width * Graphics.antialias.getFsaaScale(),
+        .height = height * Graphics.antialias.getFsaaScale(),
+        .layer_count_or_depth = 1,
+        .format = target_format,
+        .usage = switch (Graphics.antialias) {
+            .none => sdl.GPU_TEXTUREUSAGE_COLOR_TARGET,
+            .fsaa => sdl.GPU_TEXTUREUSAGE_COLOR_TARGET | sdl.GPU_TEXTUREUSAGE_SAMPLER,
+            .msaa => sdl.GPU_TEXTUREUSAGE_COLOR_TARGET,
+        },
+        .num_levels = Graphics.antialias.getFsaaLevel(),
+        .sample_count = Graphics.antialias.getMsaaSamples(),
+    }) orelse err.sdl();
 }

 pub fn windowId() sdl.WindowID {
--- a/src/graphics/camera.zig
+++ b/src/graphics/camera.zig
@@ -8,7 +8,6 @@ transform: Transform,
 /// tangent of the half of the view angle (90 degress = 1 "lens")
 lens: f32,
 near: f32,
-far: f32,
 /// width = height * aspect
 aspect: f32,

@@ -19,13 +18,10 @@ pub fn computeMatrix(camera: *Camera) void {

    const xx = 1.0 / (camera.lens * camera.aspect);
    const yy = 1.0 / camera.lens;
-    const fnmod = 1.0 / (camera.far - camera.near);
-    const zz = camera.far * fnmod;
-    const wz = -camera.near * camera.far * fnmod;
    const projection = @Vector(16, f32){
        xx, 0,  0,  0,
        0,  yy, 0,  0,
-        0,  0,  -zz, wz,
+        0,  0,  0,  camera.near,
        0,  0,  -1, 0,
    };
    camera.matrix = Transform.multiplyMatrix(projection, camera.transform.inverseMatrix());
--- a/src/graphics/presets.zig
+++ b/src/graphics/presets.zig
@@ -12,7 +12,7 @@ pub const BLEND_NORMAL = sdl.GPUColorTargetBlendState{
 };

 pub const DEPTH_ENABLED = sdl.GPUDepthStencilState{
-    .compare_op = sdl.GPU_COMPAREOP_LESS,
+    .compare_op = sdl.GPU_COMPAREOP_GREATER,
    .enable_depth_test = true,
    .enable_depth_write = true,
 };
--- a/src/world.zig
+++ b/src/world.zig
@@ -12,13 +12,9 @@ const Order = i32;
 pub var object_map: std.AutoHashMapUnmanaged(Id, usize) = .{};
 pub var objects: std.ArrayListUnmanaged(Object) = .{};

-pub var hand_mesh: Graphics.Mesh = undefined;
-pub var cube_mesh: Graphics.Mesh = undefined;
-pub var table_mesh: Graphics.Mesh = undefined;
-pub var cubemap_mesh: Graphics.Mesh = undefined;
-pub var table_texture: Assets.Texture = undefined;
-pub var hand_texture: Assets.Texture = undefined;
-pub var cubemap_texture: Assets.Texture = undefined;
+pub var hand: Assets.Object = undefined;
+pub var table: Assets.Object = undefined;
+pub var cubemap: Assets.Object = undefined;

 pub var camera_position: @Vector(2, f32) = @splat(0);
 pub var hand_transform: Graphics.Transform = .{};
@@ -46,8 +42,7 @@ const Object = struct {
    target_transform: Graphics.Transform = .{},
    width: f32,
    height: f32,
-    mesh: Graphics.Mesh,
-    texture: Assets.Texture,
+    object: Assets.Object,
    order: Order,
    id: Id,
    index: u32,
@@ -99,15 +94,7 @@ pub fn initDebug() void {
            .type = .card,
            .width = 0.5,
            .height = 0.5,
-            .mesh = Graphics.loadMesh(@ptrCast(&Graphics.generatePlane(
-                @as(f32, @floatFromInt(9 + i / 10)) / 16.0,
-                @as(f32, @floatFromInt(0 + i % 10)) / 16.0,
-                @as(f32, @floatFromInt(10 + i / 10)) / 16.0,
-                @as(f32, @floatFromInt(1 + i % 10)) / 16.0,
-                0.5,
-                0.5,
-            ))),
-            .texture = Assets.load(.texture, "data/yakuza.png"),
+            .object = Assets.load(.gltf, "data/yakuza/card.gltf"),
            .order = @intCast(i),
            .id = @intCast(i),
            .index = @intCast(i),
@@ -120,15 +107,7 @@ pub fn initDebug() void {
        .type = .deck,
        .width = 1,
        .height = 1,
-        .mesh = Graphics.loadMesh(@ptrCast(&Graphics.generatePlane(
-            0.0 / 8.0,
-            4.0 / 8.0,
-            1.0 / 8.0,
-            5.0 / 8.0,
-            1,
-            1,
-        ))),
-        .texture = Assets.load(.texture, "data/yakuza.png"),
+        .object = Assets.load(.gltf, "data/yakuza/pad.gltf"),
        .order = 70,
        .id = 70,
        .index = 70,
@@ -139,27 +118,16 @@ pub fn initDebug() void {
        .type = .deck,
        .width = 1,
        .height = 1,
-        .mesh = Graphics.loadMesh(@ptrCast(&Graphics.generatePlane(
-            0.0 / 8.0,
-            4.0 / 8.0,
-            1.0 / 8.0,
-            5.0 / 8.0,
-            1,
-            1,
-        ))),
-        .texture = Assets.load(.texture, "data/yakuza.png"),
+        .object = Assets.load(.gltf, "data/yakuza/pad.gltf"),
        .order = 71,
        .id = 71,
        .index = 71,
    }) catch err.oom();
    World.object_map.put(Game.alloc, 71, 71) catch err.oom();

-    World.table_mesh = Graphics.loadMesh(@ptrCast(&Graphics.generatePlane(0, 0, 0.5, 0.5, 8, 8)));
-    World.hand_mesh = Graphics.loadMesh(@ptrCast(&PLANE_MESH_DATA));
-    World.cubemap_mesh = Graphics.loadMesh(@ptrCast(&CUBEMAP_MESH_DATA));
-    World.table_texture = Assets.load(.texture, "data/yakuza.png");
-    World.hand_texture = Assets.load(.texture, "data/hand.png");
-    World.cubemap_texture = Assets.load(.texture, "data/cubemap.png");
+    World.hand = Assets.load(.gltf, "data/hand.gltf");
+    World.table = Assets.load(.gltf, "data/yakuza/table.gltf");
+    World.cubemap = Assets.load(.gltf, "data/cubemap.gltf");

    World.camera_position = @splat(0);
    World.hand_transform = .{};
@@ -177,15 +145,11 @@ pub fn initDebug() void {
 }

 pub fn deinit() void {
-    Graphics.unloadMesh(World.table_mesh);
-    Graphics.unloadMesh(World.hand_mesh);
-    Graphics.unloadMesh(World.cubemap_mesh);
-    Assets.free(World.table_texture);
-    Assets.free(World.hand_texture);
-    Assets.free(World.cubemap_texture);
+    Assets.free(World.hand);
+    Assets.free(World.table);
+    Assets.free(World.cubemap);
    for (World.objects.items) |*object| {
-        Assets.free(object.texture);
-        Graphics.unloadMesh(object.mesh);
+        Assets.free(object.object);
    }
    World.objects.clearAndFree(Game.alloc);
    World.object_map.clearAndFree(Game.alloc);
@@ -424,8 +388,9 @@ pub fn updateObject(object: *Object, delta: f32) void {
        .dock => {
            var topleft_x = -World.dock_last_width * 0.5 * DOCK_TILT_COS + World.dock_spacing * (@as(f32, @floatFromInt(object.parent_index)) - @as(f32, @floatFromInt(World.dock_objects - 1)) * 0.5);
            const total_w = @as(f32, @floatFromInt(World.dock_objects - 1)) * World.dock_spacing + World.dock_last_width * DOCK_TILT_COS;
+            const mouse_x = if (World.dock_focused) Game.mouse.x_norm else 0.5;
            if (total_w > Graphics.camera.aspect * 2) {
-                topleft_x += math.lerp(0, Graphics.camera.aspect - total_w * 0.5, Game.mouse.x_norm);
+                topleft_x += math.lerp(0, Graphics.camera.aspect - total_w * 0.5, mouse_x);
            }
            const hit = World.hover == object.id;
            const topleft_y = if (World.dock_focused) if (hit) @as(f32, 0.5) else @as(f32, 0.3) else @as(f32, 0.2);
@@ -465,12 +430,12 @@ pub fn updateObject(object: *Object, delta: f32) void {
 }

 pub fn draw() void {
-    Graphics.drawMesh(World.table_mesh, &World.table_texture, .{});
+    Graphics.drawObject(&World.table, .{});

    for (World.objects.items) |*object| {
        sw: switch (object.parent) {
            .none, .hand => {
-                Graphics.drawMesh(object.mesh, &object.texture, object.drawingTransform());
+                Graphics.drawObject(&object.object, object.drawingTransform());
            },
            .dock => {},
            .deck => |id| {
@@ -482,9 +447,8 @@ pub fn draw() void {
        }
    }

-    Graphics.drawMesh(
-        World.hand_mesh,
-        &World.hand_texture,
+    Graphics.drawObject(
+        &World.hand,
        Graphics.Transform.combineTransforms(
            .{
                .position = .{ World.hand_scale * 0.5, -World.hand_scale * 0.5, 0 },
@@ -494,14 +458,14 @@ pub fn draw() void {
        ),
    );

-    Graphics.drawMesh(World.cubemap_mesh, &World.cubemap_texture, .{
-        .scale = Graphics.camera.far,
+    Graphics.drawObject(&World.cubemap, .{
+        .scale = 1e20,
        .position = Graphics.camera.transform.position,
    });
    Graphics.clearDepth();
    for (World.objects.items) |*object| {
        if (object.parent == .dock)
-            Graphics.drawMesh(object.mesh, &object.texture, object.drawingTransform());
+            Graphics.drawObject(&object.object, object.drawingTransform());
    }
 }

@@ -580,65 +544,3 @@ fn objectOrderLessThan(ctx: void, lhs: Object, rhs: Object) bool {
    _ = ctx;
    return lhs.order < rhs.order;
 }
-
-const T1 = 1.0 / 3.0;
-const T2 = 2.0 / 3.0;
-const CUBEMAP_MESH_DATA = [_]f32{
-    -0.5, 0.5,  -0.5, T2,  0,
-    -0.5, -0.5, -0.5, T2,  0.5,
-    0.5,  0.5,  -0.5, 1,   0,
-    0.5,  -0.5, -0.5, 1,   0.5,
-    0.5,  0.5,  -0.5, 1,   0,
-    -0.5, -0.5, -0.5, T2,  0.5,
-
-    0.5,  0.5,  -0.5, 0,   1,
-    0.5,  -0.5, -0.5, T1,  1,
-    0.5,  0.5,  0.5,  0,   0.5,
-    0.5,  -0.5, 0.5,  T1,  0.5,
-    0.5,  0.5,  0.5,  0,   0.5,
-    0.5,  -0.5, -0.5, T1,  1,
-
-    0.5,  0.5,  0.5,  1.0, 0.0,
-    0.5,  -0.5, 0.5,  1.0, 1.0,
-    -0.5, 0.5,  0.5,  0.0, 0.0,
-    -0.5, -0.5, 0.5,  0.0, 1.0,
-    -0.5, 0.5,  0.5,  0.0, 0.0,
-    0.5,  -0.5, 0.5,  1.0, 1.0,
-
-    -0.5, 0.5,  0.5,  T1,  0,
-    -0.5, -0.5, 0.5,  0,   0,
-    -0.5, 0.5,  -0.5, T1,  0.5,
-    -0.5, -0.5, -0.5, 0,   0.5,
-    -0.5, 0.5,  -0.5, T1,  0.5,
-    -0.5, -0.5, 0.5,  0,   0,
-
-    -0.5, 0.5,  0.5,  T1,  0.5,
-    -0.5, 0.5,  -0.5, T1,  1,
-    0.5,  0.5,  0.5,  T2,  0.5,
-    0.5,  0.5,  -0.5, T2,  1,
-    0.5,  0.5,  0.5,  T2,  0.5,
-    -0.5, 0.5,  -0.5, T1,  1,
-
-    -0.5, -0.5, -0.5, T2,  0.5,
-    -0.5, -0.5, 0.5,  T2,  0,
-    0.5,  -0.5, -0.5, T1,  0.5,
-    0.5,  -0.5, 0.5,  T1,  0,
-    0.5,  -0.5, -0.5, T1,  0.5,
-    -0.5, -0.5, 0.5,  T2,  0,
-};
-const PLANE_MESH_DATA = [_]f32{
-    -0.5, -0.5, 0, 0.0, 1.0,
-    0.5,  0.5,  0, 1.0, 0.0,
-    -0.5, 0.5,  0, 0.0, 0.0,
-    0.5,  0.5,  0, 1.0, 0.0,
-    -0.5, -0.5, 0, 0.0, 1.0,
-    0.5,  -0.5, 0, 1.0, 1.0,
-};
-const PLANE_MESH_DATA_HALF = [_]f32{
-    -0.25, -0.25, 0, 0.0, 1.0,
-    0.25,  0.25,  0, 1.0, 0.0,
-    -0.25, 0.25,  0, 0.0, 0.0,
-    0.25,  0.25,  0, 1.0, 0.0,
-    -0.25, -0.25, 0, 0.0, 1.0,
-    0.25,  -0.25, 0, 1.0, 1.0,
-};
--- a/utils/sdl_translator.zig
+++ b/utils/sdl_translator.zig
@@ -1,6 +1,7 @@
 const std = @import("std");
 const sdl = @cImport({
    @cInclude("SDL3/SDL.h");
+    @cInclude("SDL3_image/SDL_image.h");
 });

 const PREFIX = "SDL_";
@@ -23,12 +24,8 @@ pub fn main() !void {
        try std.fs.cwd().createFile(output, .{});
    defer file.close();

-    const writer = file.writer();
-
-    const stdout = std.io.getStdOut();
-    defer stdout.close();
-
-    const out = stdout.writer();
+    var writer_buffer: [4096]u8 = undefined;
+    var writer = file.writer(&writer_buffer);

    var renamed_count: usize = 0;
    for (@typeInfo(sdl).@"struct".decls) |decl| {
@@ -36,7 +33,7 @@ pub fn main() !void {

        const new_name: []const u8 = decl.name[PREFIX.len..];

-        try writer.print(
+        try writer.interface.print(
            \\#define {1s} {0s}
            \\
        , .{ decl.name, new_name });
@@ -45,5 +42,4 @@ pub fn main() !void {
    if (renamed_count == 0) {
        @panic("No SDL definitions renamed");
    }
-    try out.print("[SDL Translator] {} SDL definitions renamed\n", .{renamed_count});
 }
Author	SHA1	Message	Date
duck	0658c2fdfa	Optional antialiasing	2025-09-26 00:19:11 +05:00
duck	9d3a98b2d9	Draw call batching for improved performance	2025-09-21 21:30:02 +05:00
duck	49267e629f	Hi-dpi support, fsaa tweaks	2025-09-21 02:38:49 +05:00
duck	640e7bed86	Fix some issues with asset unloading	2025-09-20 23:22:30 +05:00
duck	fc6ebb73b8	Use reversed infinite projection for camera	2025-09-20 19:03:36 +05:00
duck	c59d833542	Zig 0.14 => Zig 0.15, STB Image => SDL3 Image	2025-09-20 17:56:15 +05:00
duck	9933a956c2	Some .ignore file fixes	2025-09-20 01:36:26 +05:00
duck	f836ab8b20	Gltf parsing and rendering	2025-09-19 11:09:45 +05:00