// creates a matrix4x4 from a double[16] array in the Direct3D orientation
void Matrix4x4_FromArrayDoubleD3D(matrix4x4_t *out, const double in[16]);
+// converts a matrix4x4 to a float[16] array in the OpenGL orientation
+void Matrix4x4_ToArrayFloatGL(const matrix4x4_t *in, float out[16]);
+// creates a matrix4x4 from a float[16] array in the OpenGL orientation
+void Matrix4x4_FromArrayFloatGL(matrix4x4_t *out, const float in[16]);
+// converts a matrix4x4 to a float[16] array in the Direct3D orientation
+void Matrix4x4_ToArrayFloatD3D(const matrix4x4_t *in, float out[16]);
+// creates a matrix4x4 from a float[16] array in the Direct3D orientation
+void Matrix4x4_FromArrayFloatD3D(matrix4x4_t *out, const float in[16]);
+
// converts a matrix4x4 to a float[12] array in the OpenGL orientation
void Matrix4x4_ToArray12FloatGL(const matrix4x4_t *in, float out[12]);
// creates a matrix4x4 from a float[12] array in the OpenGL orientation