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Fix morph target prepass shader (#9013)

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# Objective

Since 10f5c92, shadows were broken for models with morph target.

When #5703 was merged, the morph target code in `render/mesh.wgsl` was
correctly updated to use the new import syntax. However, similar code
exists in `prepass/prepass.wgsl`, but it was never update. (the reason
code is duplicated is that the `Vertex` struct is different for both
files).

## Solution

Update the code, so that shadows render correctly with morph targets.
This commit is contained in:
Nicola Papale 2023-07-02 08:41:26 +02:00 committed by GitHub
parent 94291cf569
commit 889a5fb130
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 5 deletions
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10
crates/bevy_pbr/src/prepass/prepass.wgsl
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@ -57,18 +57,18 @@ struct VertexOutput {
#ifdef MORPH_TARGETS
fn morph_vertex(vertex_in: Vertex) -> Vertex {
var vertex = vertex_in;
let weight_count = layer_count();
let weight_count = bevy_pbr::morph::layer_count();
for (var i: u32 = 0u; i < weight_count; i ++) {
let weight = weight_at(i);
let weight = bevy_pbr::morph::weight_at(i);
if weight == 0.0 {
continue;
}
vertex.position += weight * morph(vertex.index, position_offset, i);
vertex.position += weight * bevy_pbr::morph::morph(vertex.index, bevy_pbr::morph::position_offset, i);
#ifdef VERTEX_NORMALS
vertex.normal += weight * morph(vertex.index, normal_offset, i);
vertex.normal += weight * bevy_pbr::morph::morph(vertex.index, bevy_pbr::morph::normal_offset, i);
#endif
#ifdef VERTEX_TANGENTS
vertex.tangent += vec4(weight * morph(vertex.index, tangent_offset, i), 0.0);
vertex.tangent += vec4(weight * bevy_pbr::morph::morph(vertex.index, bevy_pbr::morph::tangent_offset, i), 0.0);
#endif
}
return vertex;