message: fix a typo that caused skinning to just not work
diff: @@ -36,14 +36,14 @@ vec3 mulBoneVertice(const vec3 v, uint i) {
  }
  void skinNormal(inout vec3 n, const uvec4 ids, const vec4 weights) {
  - n += (mulBoneNormal(n, ids.x * 3u) * weights.x
  + n = (mulBoneNormal(n, ids.x * 3u) * weights.x
  + mulBoneNormal(n, ids.y * 3u) * weights.y
  + mulBoneNormal(n, ids.z * 3u) * weights.z
  + mulBoneNormal(n, ids.w * 3u) * weights.w);
  }
  void skinPosition(inout vec3 p, const uvec4 ids, const vec4 weights) {
  - p += mulBoneVertice(p, ids.x * 3u) * weights.x
  + p = mulBoneVertice(p, ids.x * 3u) * weights.x
  + mulBoneVertice(p, ids.y * 3u) * weights.y
  + mulBoneVertice(p, ids.z * 3u) * weights.z
  + mulBoneVertice(p, ids.w * 3u) * weights.w;
  