With large meshes, the rendering and projection steps become very slow. Fortunately, if we assume a somewhat downward looking camera, we can crop the mesh to a region around the cameras to improve the speed. This cropping is slow, but can be performed once for a set of cameras.
With large meshes, the rendering and projection steps become very slow. Fortunately, if we assume a somewhat downward looking camera, we can crop the mesh to a region around the cameras to improve the speed. This cropping is slow, but can be performed once for a set of cameras.