Swap yaw and pitch in camera computation. Add functions to convert view matrix to camera position, and camera position to camera yaw pitch roll.

examples/VoronoiFracture/VoronoiFractureDemo.cpp

@@ -108,10 +108,10 @@ class VoronoiFractureDemo : public CommonRigidBodyBase
 	virtual void resetCamera()
 	{
 		float dist = 18;
-		float pitch = 129;
-		float yaw = 30;
+		float pitch = -30;
+		float yaw = 129;
 		float targetPos[3]={-1.5,4.7,-2};
-		m_guiHelper->resetCamera(dist,pitch,yaw,targetPos[0],targetPos[1],targetPos[2]);
+		m_guiHelper->resetCamera(dist,yaw,pitch,targetPos[0],targetPos[1],targetPos[2]);
 	}