1 files changed, 56 insertions, 0 deletions
diff --git a/Source/Graphics/bonetransform.h b/Source/Graphics/bonetransform.h
new file mode 100644
index 00000000..a96c37cd
--- /dev/null
+++ b/Source/Graphics/bonetransform.h
@@ -0,0 +1,56 @@
+//-----------------------------------------------------------------------------
+//           Name: bonetransform.h
+//      Developer: Wolfire Games LLC
+//    Description: 
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#pragma once
+
+#include <Math/quaternions.h>
+
+#include <vector>
+
+struct BoneTransform {
+    quaternion rotation;
+    vec3 origin;
+
+    BoneTransform(const mat4 &other);
+    BoneTransform();
+
+    const BoneTransform& operator=(const mat4 &other);
+    mat4 GetMat4() const;
+    void LoadIdentity();
+};
+
+BoneTransform invert(const BoneTransform& transform);
+BoneTransform operator*( const BoneTransform& a, 
+                               const BoneTransform& b );
+vec3 operator*( const BoneTransform& a, 
+                     const vec3& b );
+bool operator==( const BoneTransform& a, 
+                       const BoneTransform& b );
+BoneTransform operator*( const quaternion& a, const BoneTransform& b );
+BoneTransform mix(const BoneTransform &a,
+                  const BoneTransform &b,
+                  float alpha);
+
+BoneTransform ApplyParentRotations(const std::vector<BoneTransform> &matrices, 
+                                   int id, 
+                                   const std::vector<int> &parents);