1#define_import_path bevy_pbr::prepass_utils
2
3#import bevy_pbr::mesh_view_bindings as view_bindings
4
5#ifdef DEPTH_PREPASS
6fn prepass_depth(frag_coord: vec4<f32>, sample_index: u32) -> f32 {
7#ifdef MULTISAMPLED
8    return textureLoad(view_bindings::depth_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
9#else // MULTISAMPLED
10    return textureLoad(view_bindings::depth_prepass_texture, vec2<i32>(frag_coord.xy), 0);
11#endif // MULTISAMPLED
12}
13#endif // DEPTH_PREPASS
14
15#ifdef NORMAL_PREPASS
16fn prepass_normal(frag_coord: vec4<f32>, sample_index: u32) -> vec3<f32> {
17#ifdef MULTISAMPLED
18    let normal_sample = textureLoad(view_bindings::normal_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
19#else
20    let normal_sample = textureLoad(view_bindings::normal_prepass_texture, vec2<i32>(frag_coord.xy), 0);
21#endif // MULTISAMPLED
22    return normalize(normal_sample.xyz * 2.0 - vec3(1.0));
23}
24#endif // NORMAL_PREPASS
25
26#ifdef MOTION_VECTOR_PREPASS
27fn prepass_motion_vector(frag_coord: vec4<f32>, sample_index: u32) -> vec2<f32> {
28#ifdef MULTISAMPLED
29    let motion_vector_sample = textureLoad(view_bindings::motion_vector_prepass_texture, vec2<i32>(frag_coord.xy), i32(sample_index));
30#else
31    let motion_vector_sample = textureLoad(view_bindings::motion_vector_prepass_texture, vec2<i32>(frag_coord.xy), 0);
32#endif
33    return motion_vector_sample.rg;
34}
35#endif // MOTION_VECTOR_PREPASS