1struct UncompressedVertex {
2    @builtin(instance_index) instance_index: u32,
3    @if(VERTEX_POSITIONS)
4    @location(0) position: vec3<f32>,
5    @if(VERTEX_NORMALS)
6    @location(1) normal: vec3<f32>,
7    @if(VERTEX_UVS_A)
8    @location(2) uv: vec2<f32>,
9    @if(VERTEX_UVS_B)
10    @location(3) uv_b: vec2<f32>,
11    @if(VERTEX_TANGENTS)
12    @location(4) tangent: vec4<f32>,
13    @if(VERTEX_COLORS)
14    @location(5) color: vec4<f32>,
15    @if(SKINNED)
16    @location(6) joint_indices: vec4<u32>,
17    @if(SKINNED)
18    @location(7) joint_weights: vec4<f32>,
19    @if(MORPH_TARGETS)
20    @builtin(vertex_index) index: u32,
21};
22
23struct Vertex {
24    @builtin(instance_index) instance_index: u32,
25    @if(VERTEX_POSITIONS && VERTEX_POSITIONS_COMPRESSED)
26    @location(0) compressed_position: vec4<f32>,
27    @if(VERTEX_POSITIONS && !VERTEX_POSITIONS_COMPRESSED)
28    @location(0) position: vec3<f32>,
29    @if(VERTEX_NORMALS && VERTEX_NORMALS_COMPRESSED)
30    @location(1) compressed_normal: vec2<f32>,
31    @if(VERTEX_NORMALS && !VERTEX_NORMALS_COMPRESSED)
32    @location(1) normal: vec3<f32>,
33    @if(VERTEX_UVS_A && VERTEX_UVS_A_COMPRESSED)
34    @location(2) compressed_uv: vec2<f32>,
35    @if(VERTEX_UVS_A && !VERTEX_UVS_A_COMPRESSED)
36    @location(2) uv: vec2<f32>,
37    @if(VERTEX_UVS_B && VERTEX_UVS_B_COMPRESSED)
38    @location(3) compressed_uv_b: vec2<f32>,
39    @if(VERTEX_UVS_B && !VERTEX_UVS_B_COMPRESSED)
40    @location(3) uv_b: vec2<f32>,
41    @if(VERTEX_TANGENTS && VERTEX_TANGENTS_COMPRESSED)
42    @location(4) compressed_tangent: vec2<f32>,
43    @if(VERTEX_TANGENTS && !VERTEX_TANGENTS_COMPRESSED)
44    @location(4) tangent: vec4<f32>,
45    @if(VERTEX_COLORS)
46    @location(5) color: vec4<f32>,
47    @if(SKINNED)
48    @location(6) joint_indices: vec4<u32>,
49    @if(SKINNED)
50    @location(7) joint_weights: vec4<f32>,
51    @if(MORPH_TARGETS)
52    @builtin(vertex_index) index: u32,
53};
54
55@if(!MESHLET_MESH_MATERIAL_PASS)
56
57/// The instance_index parameter must match vertex_in.instance_index. This is a work around for a wgpu dx12 bug.
58/// See https://github.com/gfx-rs/naga/issues/2416
59fn decompress_vertex(vertex_in: Vertex, instance_index: u32) -> UncompressedVertex {
60    let mesh_metadata = package::render::mesh_functions::get_metadata(instance_index);
61    var uncompressed_vertex: UncompressedVertex;
62    uncompressed_vertex.instance_index = instance_index;
63@if(VERTEX_POSITIONS && VERTEX_POSITIONS_COMPRESSED)
64    uncompressed_vertex.position = bevy_render::utils::decompress_vertex_position(vertex_in.compressed_position, mesh_metadata.aabb_center, mesh_metadata.aabb_half_extents);
65@if(VERTEX_POSITIONS && !VERTEX_POSITIONS_COMPRESSED)
66    uncompressed_vertex.position = vertex_in.position;
67@if(VERTEX_NORMALS && VERTEX_NORMALS_COMPRESSED)
68    uncompressed_vertex.normal = bevy_render::utils::decompress_vertex_normal(vertex_in.compressed_normal);
69@if(VERTEX_NORMALS && !VERTEX_NORMALS_COMPRESSED)
70    uncompressed_vertex.normal = vertex_in.normal;
71@if(VERTEX_UVS_A && VERTEX_UVS_A_COMPRESSED) {
72    let uv_min_and_extents_a = mesh_metadata.uv_channels_min_and_extents[0];
73    uncompressed_vertex.uv = bevy_render::utils::decompress_vertex_uv(vertex_in.compressed_uv, uv_min_and_extents_a);
74}
75@if(VERTEX_UVS_A && !VERTEX_UVS_A_COMPRESSED)
76    uncompressed_vertex.uv = vertex_in.uv;
77@if(VERTEX_UVS_B && VERTEX_UVS_B_COMPRESSED) {
78    let uv_min_and_extents_b = mesh_metadata.uv_channels_min_and_extents[1];
79    uncompressed_vertex.uv_b = bevy_render::utils::decompress_vertex_uv(vertex_in.compressed_uv_b, uv_min_and_extents_b);
80}
81@if(VERTEX_UVS_B && !VERTEX_UVS_B_COMPRESSED)
82    uncompressed_vertex.uv_b = vertex_in.uv_b;
83@if(VERTEX_TANGENTS && VERTEX_TANGENTS_COMPRESSED)
84    uncompressed_vertex.tangent = bevy_render::utils::decompress_vertex_tangent(vertex_in.compressed_tangent);
85@if(VERTEX_TANGENTS && !VERTEX_TANGENTS_COMPRESSED)
86    uncompressed_vertex.tangent = vertex_in.tangent;
87@if(VERTEX_COLORS)
88    uncompressed_vertex.color = vertex_in.color;
89@if(SKINNED) {
90    uncompressed_vertex.joint_indices = vertex_in.joint_indices;
91    uncompressed_vertex.joint_weights = vertex_in.joint_weights;
92}
93@if(MORPH_TARGETS)
94    uncompressed_vertex.index = vertex_in.index;
95    return uncompressed_vertex;
96}
97
98struct VertexOutput {
99    /// This is `clip position` when the struct is used as a vertex stage output
100    /// and `frag coord` when used as a fragment stage input
101    @builtin(position) position: vec4<f32>,
102    @location(0) world_position: vec4<f32>,
103    @location(1) world_normal: vec3<f32>,
104    @if(VERTEX_UVS_A)
105    @location(2) uv: vec2<f32>,
106    @if(VERTEX_UVS_B)
107    @location(3) uv_b: vec2<f32>,
108    @if(VERTEX_TANGENTS)
109    @location(4) world_tangent: vec4<f32>,
110    @if(VERTEX_COLORS)
111    @location(5) color: vec4<f32>,
112    @if(VERTEX_OUTPUT_INSTANCE_INDEX)
113    @location(6) @interpolate(flat) instance_index: u32,
114    @if(VISIBILITY_RANGE_DITHER)
115    @location(7) @interpolate(flat) visibility_range_dither: i32,
116}
117
118struct FragmentOutput {
119    @location(0) color: vec4<f32>,
120}