50ee483665
- Copy module docs so that they show up in the re-export - Change meshlet_id to cluster_id in the debug visualization - Small doc tweaks
53 lines
1.8 KiB
WebGPU Shading Language
53 lines
1.8 KiB
WebGPU Shading Language
#import bevy_pbr::{
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meshlet_visibility_buffer_resolve::resolve_vertex_output,
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view_transformations::uv_to_ndc,
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prepass_io,
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pbr_prepass_functions,
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utils::rand_f,
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}
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@vertex
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fn vertex(@builtin(vertex_index) vertex_input: u32) -> @builtin(position) vec4<f32> {
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let vertex_index = vertex_input % 3u;
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let material_id = vertex_input / 3u;
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let material_depth = f32(material_id) / 65535.0;
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let uv = vec2<f32>(vec2(vertex_index >> 1u, vertex_index & 1u)) * 2.0;
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return vec4(uv_to_ndc(uv), material_depth, 1.0);
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}
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@fragment
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fn fragment(@builtin(position) frag_coord: vec4<f32>) -> @location(0) vec4<f32> {
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let vertex_output = resolve_vertex_output(frag_coord);
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var rng = vertex_output.cluster_id;
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let color = vec3(rand_f(&rng), rand_f(&rng), rand_f(&rng));
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return vec4(color, 1.0);
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}
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#ifdef PREPASS_FRAGMENT
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@fragment
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fn prepass_fragment(@builtin(position) frag_coord: vec4<f32>) -> prepass_io::FragmentOutput {
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let vertex_output = resolve_vertex_output(frag_coord);
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var out: prepass_io::FragmentOutput;
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#ifdef NORMAL_PREPASS
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out.normal = vec4(vertex_output.world_normal * 0.5 + vec3(0.5), 1.0);
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#endif
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#ifdef MOTION_VECTOR_PREPASS
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out.motion_vector = vertex_output.motion_vector;
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#endif
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#ifdef DEFERRED_PREPASS
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// There isn't any material info available for this default prepass shader so we are just writing
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// emissive magenta out to the deferred gbuffer to be rendered by the first deferred lighting pass layer.
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// This is here so if the default prepass fragment is used for deferred magenta will be rendered, and also
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// as an example to show that a user could write to the deferred gbuffer if they were to start from this shader.
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out.deferred = vec4(0u, bevy_pbr::rgb9e5::vec3_to_rgb9e5_(vec3(1.0, 0.0, 1.0)), 0u, 0u);
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out.deferred_lighting_pass_id = 1u;
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#endif
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return out;
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}
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#endif
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