Semi-broken skeletally-animated model COLLADA->PMD converter.

This was SVN commit r4691.

source/collada/Maths.cpp

@@ -0,0 +1,48 @@
+#include "precompiled.h"
+
+#include "Maths.h"
+
+FMMatrix44 operator+ (const FMMatrix44& a, const FMMatrix44& b)
+{
+	FMMatrix44 r;
+	for (int x = 0; x < 4; ++x)
+		for (int y = 0; y < 4; ++y)
+			r[x][y] = a[x][y] + b[x][y];
+	return r;
+}
+
+FMMatrix44 operator/ (const FMMatrix44& a, const float b)
+{
+	FMMatrix44 r;
+	for (int x = 0; x < 4; ++x)
+		for (int y = 0; y < 4; ++y)
+			r[x][y] = a[x][y] / b;
+	return r;
+}
+
+FMMatrix44 QuatToMatrix(float x, float y, float z, float w)
+{
+	FMMatrix44 r;
+
+	r[0][0] = 1.0f - (y*y*2 + z*z*2);
+	r[1][0] = x*y*2 - w*z*2;
+	r[2][0] = x*z*2 + w*y*2;
+	r[3][0] = 0;
+
+	r[0][1] = x*y*2 + w*z*2;
+	r[1][1] = 1.0f - (x*x*2 + z*z*2);
+	r[2][1] = y*z*2 - w*x*2;
+	r[3][1] = 0;
+
+	r[0][2] = x*z*2 - w*y*2;
+	r[1][2] = y*z*2 + w*x*2;
+	r[2][2] = 1.0f - (x*x*2 + y*y*2);
+	r[3][2] = 0;
+
+	r[0][3] = 0;
+	r[1][3] = 0;
+	r[2][3] = 0;
+	r[3][3] = 1;
+
+	return r;
+}