mirror of
https://github.com/bevyengine/bevy
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82 lines
1.9 KiB
WebGPU Shading Language
82 lines
1.9 KiB
WebGPU Shading Language
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#import bevy_pbr::prepass_bindings
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#import bevy_pbr::mesh_functions
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// Most of these attributes are not used in the default prepass fragment shader, but they are still needed so we can
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// pass them to custom prepass shaders like pbr_prepass.wgsl.
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struct Vertex {
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@location(0) position: vec3<f32>,
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#ifdef VERTEX_UVS
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@location(1) uv: vec2<f32>,
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#endif // VERTEX_UVS
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#ifdef NORMAL_PREPASS
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@location(2) normal: vec3<f32>,
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#ifdef VERTEX_TANGENTS
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@location(3) tangent: vec4<f32>,
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#endif // VERTEX_TANGENTS
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#endif // NORMAL_PREPASS
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#ifdef SKINNED
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@location(4) joint_indices: vec4<u32>,
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@location(5) joint_weights: vec4<f32>,
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#endif // SKINNED
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}
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struct VertexOutput {
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@builtin(position) clip_position: vec4<f32>,
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#ifdef VERTEX_UVS
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@location(0) uv: vec2<f32>,
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#endif // VERTEX_UVS
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#ifdef NORMAL_PREPASS
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@location(1) world_normal: vec3<f32>,
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#ifdef VERTEX_TANGENTS
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@location(2) world_tangent: vec4<f32>,
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#endif // VERTEX_TANGENTS
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#endif // NORMAL_PREPASS
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}
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@vertex
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fn vertex(vertex: Vertex) -> VertexOutput {
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var out: VertexOutput;
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#ifdef SKINNED
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var model = skin_model(vertex.joint_indices, vertex.joint_weights);
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#else // SKINNED
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var model = mesh.model;
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#endif // SKINNED
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out.clip_position = mesh_position_local_to_clip(model, vec4(vertex.position, 1.0));
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#ifdef VERTEX_UVS
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out.uv = vertex.uv;
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#endif // VERTEX_UVS
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#ifdef NORMAL_PREPASS
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#ifdef SKINNED
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out.world_normal = skin_normals(model, vertex.normal);
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#else // SKINNED
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out.world_normal = mesh_normal_local_to_world(vertex.normal);
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#endif // SKINNED
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#ifdef VERTEX_TANGENTS
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out.world_tangent = mesh_tangent_local_to_world(model, vertex.tangent);
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#endif // VERTEX_TANGENTS
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#endif // NORMAL_PREPASS
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return out;
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}
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#ifdef NORMAL_PREPASS
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struct FragmentInput {
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@location(1) world_normal: vec3<f32>,
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}
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@fragment
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fn fragment(in: FragmentInput) -> @location(0) vec4<f32> {
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return vec4(in.world_normal * 0.5 + vec3(0.5), 1.0);
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}
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#endif // NORMAL_PREPASS
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