1import package::render::mesh_view_bindings as view_bindings;
2
3@if(DEPTH_PREPASS)
4fn prepass_depth(frag_coord: vec4<f32>, sample_index: u32) -> f32 {
5    @if(MULTISAMPLED)
6    return textureLoad(view_bindings::depth_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
7    @else // MULTISAMPLED
8    return textureLoad(view_bindings::depth_prepass_texture, vec2<i32>(frag_coord.xy), 0);
9}
10
11@if(NORMAL_PREPASS)
12fn prepass_normal(frag_coord: vec4<f32>, sample_index: u32) -> vec3<f32> {
13    @if(MULTISAMPLED)
14    let normal_sample = textureLoad(view_bindings::normal_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
15    @else
16    let normal_sample = textureLoad(view_bindings::normal_prepass_texture, vec2<i32>(frag_coord.xy), 0);
17    return normalize(normal_sample.xyz * 2.0 - vec3(1.0));
18}
19
20@if(MOTION_VECTOR_PREPASS)
21fn prepass_motion_vector(frag_coord: vec4<f32>, sample_index: u32) -> vec2<f32> {
22    @if(MULTISAMPLED)
23    let motion_vector_sample = textureLoad(view_bindings::motion_vector_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
24    @else
25    let motion_vector_sample = textureLoad(view_bindings::motion_vector_prepass_texture, vec2<i32>(frag_coord.xy), 0);
26    return motion_vector_sample.rg;
27}