37 lines
1.2 KiB
GLSL
Executable file
37 lines
1.2 KiB
GLSL
Executable file
uniform float skinBones[skinMaxBones * 12];
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mat4 getBoneMat(const int boneIndex) {
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vec4 v0 = vec4(skinBones[boneIndex * 12 + 0],
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skinBones[boneIndex * 12 + 1],
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skinBones[boneIndex * 12 + 2],
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skinBones[boneIndex * 12 + 3]);
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vec4 v1 = vec4(skinBones[boneIndex * 12 + 4],
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skinBones[boneIndex * 12 + 5],
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skinBones[boneIndex * 12 + 6],
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skinBones[boneIndex * 12 + 7]);
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vec4 v2 = vec4(skinBones[boneIndex * 12 + 8],
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skinBones[boneIndex * 12 + 9],
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skinBones[boneIndex * 12 + 10],
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skinBones[boneIndex * 12 + 11]);
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return mat4(v0.x, v0.y, v0.z, v0.w,
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v1.x, v1.y, v1.z, v1.w,
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v2.x, v2.y, v2.z, v2.w,
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0.0, 0.0, 0.0, 1.0);
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}
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mat4 getSkinningMat(ivec4 bone, vec4 weight) {
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return weight.x * getBoneMat(bone.x) +
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weight.y * getBoneMat(bone.y) +
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weight.z * getBoneMat(bone.z) +
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weight.w * getBoneMat(bone.w);
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}
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mat3 getSkinningMatVec(const mat4 skinningMat) {
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return mat3(skinningMat[0].xyz, skinningMat[1].xyz, skinningMat[2].xyz);
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}
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// mat4 skinningMat = getSkinningMat();
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// mat3 skinningMatVec = getSkinningMatVec(skinningMat);
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// sPos = sPos * skinningMat;
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// vec3 _normal = normalize(mat3(N) * (nor * skinningMatVec));
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