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Fix transform matrices multiplication order per glTF2.0 spec

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Closes #1568
This commit is contained in:
awefers
2017-11-27 11:30:18 -05:00
committed by Daniel Hritzkiv
parent 0ce3641deb
commit e53d4735b0
1 changed files with 8 additions and 9 deletions
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17
code/glTF2Importer.cpp
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@@ -515,7 +515,13 @@ aiNode* ImportNode(aiScene* pScene, glTF2::Asset& r, std::vector<unsigned int>&
CopyValue(node.translation.value, trans);
aiMatrix4x4 t;
aiMatrix4x4::Translation(trans, t);
matrix = t * matrix;
matrix = matrix * t;
}
if (node.rotation.isPresent) {
aiQuaternion rot;
CopyValue(node.rotation.value, rot);
matrix = matrix * aiMatrix4x4(rot.GetMatrix());
}
if (node.scale.isPresent) {
@@ -523,14 +529,7 @@ aiNode* ImportNode(aiScene* pScene, glTF2::Asset& r, std::vector<unsigned int>&
CopyValue(node.scale.value, scal);
aiMatrix4x4 s;
aiMatrix4x4::Scaling(scal, s);
matrix = s * matrix;
}
if (node.rotation.isPresent) {
aiQuaternion rot;
CopyValue(node.rotation.value, rot);
matrix = aiMatrix4x4(rot.GetMatrix()) * matrix;
matrix = matrix * s;
}
}