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40 lines
933 B
Plaintext
40 lines
933 B
Plaintext
struct Camera {
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view_pos: vec4<f32>,
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view_proj: mat4x4<f32>,
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inv_view_proj: mat4x4<f32>,
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}
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@group(0) @binding(0)
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var<uniform> camera: Camera;
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@group(1)
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@binding(0)
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var env_map: texture_cube<f32>;
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@group(1)
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@binding(1)
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var env_sampler: sampler;
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struct VertexOutput {
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@builtin(position) clip_position: vec4<f32>,
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@location(0) view_dir: vec3<f32>,
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}
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@vertex
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fn vs_main(
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@builtin(vertex_index) id: u32,
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) -> VertexOutput {
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let uv = vec2<f32>(vec2<u32>(
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(id << 1u) & 2u,
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id & 2u
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));
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var out: VertexOutput;
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out.clip_position = vec4(uv * 2.0 - 1.0, 1.0, 1.0);
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out.view_dir = normalize((camera.inv_view_proj * vec4(normalize(out.clip_position.xyz), 1.0)).xyz);
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return out;
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}
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@fragment
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fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
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// let sample = textureSample(env_map, env_sampler, in.view_dir);
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let sample = vec4(in.view_dir, 1.0);
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return sample;
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} |