commit 39c5ff0b24c0f512c4ab7a65225501c8c37759f4
parent 8c123b66956a53e705b9cc050751d0850a69ffd4
Author: Christian Ermann <christianermann@gmail.com>
Date: Mon, 20 May 2024 19:49:28 -0400
Add textured objects
Diffstat:
12 files changed, 1664 insertions(+), 20 deletions(-)
diff --git a/alps_field_4k/nx.png b/alps_field_4k/nx.png
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diff --git a/alps_field_4k/ny.png b/alps_field_4k/ny.png
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diff --git a/alps_field_4k/nz.png b/alps_field_4k/nz.png
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diff --git a/alps_field_4k/px.png b/alps_field_4k/px.png
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diff --git a/alps_field_4k/py.png b/alps_field_4k/py.png
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diff --git a/alps_field_4k/pz.png b/alps_field_4k/pz.png
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diff --git a/cottage/cottage-fixed.obj b/cottage/cottage-fixed.obj
@@ -0,0 +1,1476 @@
+# Blender 3.4.0
+# www.blender.org
+mtllib cottage-fixed.mtl
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+f 311/516/6 312/517/6 307/512/6
+f 302/507/88 309/514/88 315/520/88
+f 315/520/89 309/514/89 310/515/89
+f 305/510/6 313/518/6 315/520/6
+f 316/521/6 314/519/6 306/511/6
+f 311/516/6 315/520/6 316/521/6
+f 317/522/71 318/523/71 319/524/71
+f 322/527/72 325/530/72 324/529/72
+f 319/524/71 321/526/71 322/527/71
+f 320/525/72 324/529/72 323/528/72
+f 328/538/73 331/546/73 330/543/73
+f 327/535/74 330/544/74 331/547/74
+f 332/550/75 336/561/75 337/564/75
+f 337/565/76 336/562/76 333/552/76
+f 329/541/77 335/560/77 333/553/77
+f 326/532/78 332/551/78 334/556/78
+f 329/542/4 331/548/4 337/566/4
+f 327/536/3 333/554/3 336/563/3
+f 326/533/3 330/545/3 336/563/3
+f 328/539/4 334/557/4 337/566/4
diff --git a/cottage/cottage_diffuse.png b/cottage/cottage_diffuse.png
Binary files differ.
diff --git a/src/main.zig b/src/main.zig
@@ -9,6 +9,8 @@ const RenderPipeline = @import("render_pipeline.zig").RenderPipeline;
const MeshRenderPipeline = @import("render_pipeline.zig").MeshRenderPipeline;
const SkyBoxRenderPipeline = @import("render_pipeline.zig").SkyBoxRenderPipeline;
const CubeMap = @import("cubemap.zig");
+const Textures = @import("textures.zig");
+const Material = @import("material.zig");
const Camera = @import("camera.zig");
const input = @import("input.zig");
@@ -286,6 +288,7 @@ pub const mat4 = [4]@Vector(4, f32);
const InstanceData = struct {
model_matrix: mat4,
+ material: Material,
};
pub const UniformData = struct {
@@ -497,12 +500,15 @@ pub const Mesh = struct {
offset: f32x3 = .{ 0.0, 0.0, 0.0 },
pub fn instanceData(self: *const Mesh) InstanceData {
- return InstanceData{ .model_matrix = .{
- .{ self.scale, 0, 0, 0 },
- .{ 0, self.scale, 0, 0 },
- .{ 0, 0, self.scale, 0 },
- .{ self.offset[0], self.offset[1], self.offset[2], 1 },
- } };
+ return InstanceData{
+ .model_matrix = .{
+ .{ self.scale, 0, 0, 0 },
+ .{ 0, self.scale, 0, 0 },
+ .{ 0, 0, self.scale, 0 },
+ .{ self.offset[0], self.offset[1], self.offset[2], 1 },
+ },
+ .material = .{ .albedo = 0, .normal = 0 },
+ };
}
};
@@ -514,13 +520,23 @@ pub fn main() !void {
try app.init(allocator);
defer app.deinit();
+ var textures = Textures.init(allocator, app.device);
+
+ //const images = .{
+ // .pos_x = "cube/cube-pos-x.png",
+ // .neg_x = "cube/cube-neg-x.png",
+ // .pos_y = "cube/cube-pos-y.png",
+ // .neg_y = "cube/cube-neg-y.png",
+ // .pos_z = "cube/cube-pos-z.png",
+ // .neg_z = "cube/cube-neg-z.png",
+ //};
const images = .{
- .pos_x = "cube/cube-pos-x.png",
- .neg_x = "cube/cube-neg-x.png",
- .pos_y = "cube/cube-pos-y.png",
- .neg_y = "cube/cube-neg-y.png",
- .pos_z = "cube/cube-pos-z.png",
- .neg_z = "cube/cube-neg-z.png",
+ .pos_x = "alps_field_4k/px.png",
+ .neg_x = "alps_field_4k/nx.png",
+ .pos_y = "alps_field_4k/py.png",
+ .neg_y = "alps_field_4k/ny.png",
+ .pos_z = "alps_field_4k/pz.png",
+ .neg_z = "alps_field_4k/nz.png",
};
const cube_map = try CubeMap.init(images, allocator, &app);
@@ -539,8 +555,9 @@ pub fn main() !void {
_ = try load_obj.loadFile(.{
.allocator = allocator,
.mesh_buffer = &mesh_buffer,
- .path = "bunny-fixed.obj",
- .scale = 1.5,
+ .path = "cottage/cottage-fixed.obj",
+ .scale = 1,
+ .offset = .{ 0, -5, 15 },
});
_ = try load_obj.loadFile(.{
.allocator = allocator,
@@ -550,7 +567,14 @@ pub fn main() !void {
.offset = .{ 0, -0.5, 0 },
});
- var rp = try MeshRenderPipeline.init(&app, &mesh_buffer, allocator);
+ var rp = try MeshRenderPipeline.init(&app, &mesh_buffer, &textures);
+
+ _ = try Material.init(
+ &textures,
+ "cottage/cottage_diffuse.png",
+ app.queue,
+ );
+
var skybox = SkyBoxRenderPipeline.init(&app, cube_map);
var fp = ForwardScreenPass.init(.{
@@ -571,6 +595,7 @@ pub fn main() !void {
.inv_view = undefined,
.inv_proj = undefined,
};
+
while (!app.window.shouldClose()) {
glfw.pollEvents();
diff --git a/src/material.zig b/src/material.zig
@@ -0,0 +1,21 @@
+const std = @import("std");
+const gpu = @import("mach_gpu");
+const Textures = @import("textures.zig");
+
+albedo: u32,
+normal: u32,
+
+const Self = @This();
+
+pub fn init(
+ textures: *Textures,
+ albedo_path: []const u8,
+ queue: *gpu.Queue,
+) !Self {
+ const albedo = try textures.loadFile(albedo_path, queue);
+
+ return .{
+ .albedo = albedo,
+ .normal = 0,
+ };
+}
diff --git a/src/render_pipeline.zig b/src/render_pipeline.zig
@@ -7,6 +7,7 @@ const UniformData = @import("main.zig").UniformData;
const f32x4 = @import("main.zig").f32x4;
const mat4 = @import("main.zig").mat4;
const CubeMap = @import("cubemap.zig");
+const Textures = @import("textures.zig");
pub const RenderPipeline = struct {
ptr: *anyopaque,
@@ -96,22 +97,34 @@ pub const MeshRenderPipeline = struct {
bind_group: *gpu.BindGroup,
uniform_buffer: *gpu.Buffer,
- pub fn init(app: *App, mesh_buffer: *const MeshBuffer, _: std.mem.Allocator) !MeshRenderPipeline {
+ pub fn init(
+ app: *App,
+ mesh_buffer: *const MeshBuffer,
+ textures: *const Textures,
+ ) !MeshRenderPipeline {
const vs =
\\ struct VertexInput {
\\ @location(0) position: vec4<f32>,
\\ @location(1) normal: vec3<f32>,
+ \\ @location(2) tex_coord: vec3<f32>,
\\ };
\\
\\ struct VertexOutput {
\\ @builtin(position) clip_position: vec4<f32>,
\\ @location(0) normal: vec3<f32>,
+ \\ @location(1) tex_coord: vec3<f32>,
+ \\ @location(2) @interpolate(flat) instance_id: u32,
\\ };
\\
\\ @group(0) @binding(0)
\\ var<storage, read> instances: array<Instance>;
\\ struct Instance {
\\ model_matrix: mat4x4<f32>,
+ \\ material: Material,
+ \\ };
+ \\ struct Material {
+ \\ albedo: u32,
+ \\ normal: u32,
\\ };
\\
\\ @group(0) @binding(1)
@@ -128,7 +141,7 @@ pub const MeshRenderPipeline = struct {
\\ let model_matrix = instances[idx].model_matrix;
\\ let camera_matrix = uniform_data.proj_matrix * uniform_data.view_matrix;
\\ let matrix = camera_matrix * model_matrix;
- \\ return VertexOutput(matrix * in.position, in.normal);
+ \\ return VertexOutput(matrix * in.position, in.normal, in.tex_coord, idx);
\\ }
;
const vs_module = app.device.createShaderModuleWGSL("default vertex shader", vs);
@@ -145,11 +158,29 @@ pub const MeshRenderPipeline = struct {
\\ struct VertexOutput {
\\ @builtin(position) position: vec4<f32>,
\\ @location(0) normal: vec3<f32>,
+ \\ @location(1) tex_coord: vec3<f32>,
+ \\ @location(2) @interpolate(flat) instance_id: u32,
\\ };
\\
+ \\ @group(0) @binding(0)
+ \\ var<storage, read> instances: array<Instance>;
+ \\ struct Instance {
+ \\ model_matrix: mat4x4<f32>,
+ \\ material: Material,
+ \\ };
+ \\ struct Material {
+ \\ albedo: u32,
+ \\ normal: u32,
+ \\ };
+ \\
+ \\ @group(0) @binding(2) var material_sampler: sampler;
+ \\ @group(0) @binding(3) var material_texture: texture_2d_array<f32>;
+ \\
\\ @fragment fn main(in: VertexOutput) -> @location(0) vec4<f32> {
- \\ let color = (in.normal + 1.0) * 0.5;
- \\ return vec4<f32>(color, 1.0);
+ \\ let material = instances[in.instance_id].material;
+ \\ let uv = vec2<f32>(in.tex_coord.x, 1 - in.tex_coord.y);
+ \\ let sample = textureSample(material_texture, material_sampler, uv, material.albedo);
+ \\ return sample;
\\ }
;
const fs_module = app.device.createShaderModuleWGSL("default fragment shader", fs);
@@ -180,6 +211,8 @@ pub const MeshRenderPipeline = struct {
.entries = &.{
gpu.BindGroup.Entry.buffer(0, mesh_buffer.instances.data, 0, mesh_buffer.instances.size),
gpu.BindGroup.Entry.buffer(1, uniform_buffer, 0, @sizeOf(UniformData)),
+ gpu.BindGroup.Entry.sampler(2, textures.sampler),
+ gpu.BindGroup.Entry.textureView(3, textures.view),
},
});
const bind_group = app.device.createBindGroup(&bind_group_descriptor);
@@ -246,12 +279,20 @@ pub const MeshRenderPipeline = struct {
.entries = &.{
gpu.BindGroupLayout.Entry.buffer(0, .{
.vertex = true,
- .fragment = false,
+ .fragment = true,
}, .read_only_storage, false, 0),
gpu.BindGroupLayout.Entry.buffer(1, .{
.vertex = true,
.fragment = false,
}, .uniform, false, 0),
+ gpu.BindGroupLayout.Entry.sampler(2, .{
+ .vertex = false,
+ .fragment = true,
+ }, .filtering),
+ gpu.BindGroupLayout.Entry.texture(3, .{
+ .vertex = false,
+ .fragment = true,
+ }, .float, .dimension_2d_array, false),
},
});
return device.createBindGroupLayout(&descriptor);
diff --git a/src/textures.zig b/src/textures.zig
@@ -0,0 +1,81 @@
+const std = @import("std");
+const gpu = @import("mach_gpu");
+const Image = @import("zigimg").Image;
+
+allocator: std.mem.Allocator,
+texture: *gpu.Texture,
+view: *gpu.TextureView,
+sampler: *gpu.Sampler,
+offset: u32 = 0,
+
+const Self = @This();
+
+pub fn init(allocator: std.mem.Allocator, device: *gpu.Device) Self {
+ const tex_size = gpu.Extent3D{
+ .width = 2048,
+ .height = 2048,
+ .depth_or_array_layers = 128,
+ };
+ const texture = device.createTexture(&.{
+ .size = tex_size,
+ .format = .rgba8_unorm,
+ .dimension = .dimension_2d,
+ .usage = .{
+ .texture_binding = true,
+ .copy_dst = true,
+ .render_attachment = false,
+ },
+ });
+ const view = texture.createView(
+ &gpu.TextureView.Descriptor{
+ .dimension = .dimension_2d_array,
+ },
+ );
+ const sampler = device.createSampler(&.{
+ .mag_filter = .linear,
+ .min_filter = .linear,
+ });
+
+ return .{
+ .allocator = allocator,
+ .texture = texture,
+ .view = view,
+ .sampler = sampler,
+ };
+}
+
+pub fn loadFile(
+ self: *Self,
+ path: []const u8,
+ queue: *gpu.Queue,
+) !u32 {
+ var image = try Image.fromFilePath(self.allocator, path);
+ defer image.deinit();
+
+ const tex_width = 2048;
+ const tex_height = 2048;
+ const tex_size = gpu.Extent3D{ .width = tex_width, .height = tex_height };
+
+ const data_layout = gpu.Texture.DataLayout{
+ .bytes_per_row = tex_width * 4,
+ .rows_per_image = tex_height,
+ };
+ const destination = gpu.ImageCopyTexture{
+ .texture = self.texture,
+ .origin = gpu.Origin3D{ .x = 0, .y = 0, .z = self.offset },
+ };
+ defer self.offset += 1;
+
+ switch (image.pixels) {
+ .rgba32 => |pixels| {
+ queue.writeTexture(
+ &destination,
+ &data_layout,
+ &tex_size,
+ pixels,
+ );
+ },
+ else => @panic("unsupported image color format"),
+ }
+ return self.offset;
+}
