#include "camerahelper.h"
#include "globals.h"

void FillCameraMatrix( D3DXVECTOR3 v3Pos, D3DXVECTOR3 v3Rot, D3DXMATRIX* CamMat )
{
	float fYLeft= cos( v3Rot.y );
	g_CamFront.x= -sin( v3Rot.x ) * fYLeft ;
	g_CamFront.y= -sin( v3Rot.y );
	g_CamFront.z= cos( v3Rot.x ) * fYLeft ;
	D3DXVec3Normalize(&g_CamFront, &g_CamFront);

	D3DXMatrixRotationYawPitchRoll( CamMat,
									-v3Rot.x,
									v3Rot.y,
									v3Rot.z );

	D3DXMATRIX CamMove;
	D3DXMatrixTranslation( &CamMove, v3Pos.x, v3Pos.y, v3Pos.z );
	D3DXMatrixMultiply( CamMat, CamMat, &CamMove );


	D3DXMatrixInverse(CamMat, NULL, CamMat );
}