Method IsBoxVisible

trinity/TriFrustum.cpp:187–223

------------------------------------------------------------- Description: Tests for frustum-AABB intersection. May return false positive answers. Arguments: boundsMin - Min bounds of AABB boundsMax - Max bounds of AABB Return Value: true If AABB intersects / is inside frustum false If AABB is outside frustum -------------------------------------------------------------

//   false If AABB is outside frustum
// -------------------------------------------------------------
bool TriFrustum::IsBoxVisible( const Vector3& boundsMin, const Vector3& boundsMax ) const
{
	Vector3 vmax;

	for( int i = 0; i < 6; ++i )
	{
		if( m_planes[i].a > 0 )
		{
			vmax.x = boundsMax.x;
		}
		else
		{
			vmax.x = boundsMin.x;
		}
		if( m_planes[i].b > 0 )
		{
			vmax.y = boundsMax.y;
		}
		else
		{
			vmax.y = boundsMin.y;
		}
		if( m_planes[i].c > 0 )
		{
			vmax.z = boundsMax.z;
		}
		else
		{
			vmax.z = boundsMin.z;
		}
		if( DotCoord( m_planes[i], vmax ) < 0 )
		{
			return false;
		}
	}
	return true;
}

bool TriFrustum::IsBoxVisible( const CcpMath::AxisAlignedBox& aabb ) const
{