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GLES2: Make GPU skinning more consistent

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The Benedani 2023-08-15 11:19:22 +02:00 committed by Relintai
parent 3954a79659
commit d0972a7e36
1 changed files with 36 additions and 9 deletions
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45
drivers/gles2/shaders/scene.glsl
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@ -429,17 +429,44 @@ void main() {
#else
// look up transform from the "pose texture"
{
for (int i = 0; i < 4; i++) {
ivec2 tex_ofs = ivec2(int(bone_ids[i]) * 3, 0);
ivec4 bone_indicesi = ivec4(bone_ids); // cast to signed int
highp mat4 b = mat4(
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(0, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)),
vec4(0.0, 0.0, 0.0, 1.0));
ivec2 tex_ofs = ivec2(bone_indicesi.x * 3, 0);
bone_transform = mat4(
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)),
vec4(0.0, 0.0, 0.0, 1.0)) *
bone_weights.x;
bone_transform += transpose(b) * bone_weights[i];
}
tex_ofs = ivec2(bone_indicesi.y * 3, 0);
bone_transform += mat4(
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)),
vec4(0.0, 0.0, 0.0, 1.0)) *
bone_weights.y;
tex_ofs = ivec2(bone_indicesi.z * 3, 0);
bone_transform += mat4(
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)),
vec4(0.0, 0.0, 0.0, 1.0)) *
bone_weights.z;
tex_ofs = ivec2(bone_indicesi.w * 3, 0);
bone_transform += mat4(
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(1, 0)),
texel2DFetch(bone_transforms, skeleton_texture_size, tex_ofs + ivec2(2, 0)),
vec4(0.0, 0.0, 0.0, 1.0)) *
bone_weights.w;
bone_transform = transpose(bone_transform);
}
#endif