Function TransformPoint

trinity/Tr2ScalingTool.cpp:15–31

{

Vector3 TransformPoint( const Vector3& localCenter, Tr2SolidSet* solid, Matrix& viewMatrix )
{
	XMVECTOR det;
	Matrix viewInv( XMMatrixInverse( &det, viewMatrix ) );

	Vector3 viewPos = viewInv.GetTranslation();
	Vector3 lineSetPos = Vector3( solid->m_localTransform._41, solid->m_localTransform._42, solid->m_localTransform._43 );
	Vector3 normal = Vector3( viewMatrix._13, viewMatrix._23, viewMatrix._33 );
	Vector3 dir( viewPos - lineSetPos );
	float scale = fabs( Dot( dir, normal ) * g_primitiveDistanceScaleMultiplier * Tr2Renderer::GetFieldOfView() );

	Matrix scaleMat, finalTransform;
	scaleMat = ScalingMatrix( scale, scale, scale );
	finalTransform = scaleMat * solid->m_localTransform;

	return Vector3( XMVector3TransformCoord( localCenter, finalTransform ) );
}

}