Finding a 2D bounding box

Blitz3D Forums/Blitz3D Programming/Finding a 2D bounding box

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JKP
 #1
How can I find the 2D bounding box of a 3D mesh as it is displayed on screen? It doesn't have to be really accurate but it does need to be fast. I don't want to have to loop through every vertex of each mesh every frame because it would be too slow.

Thanks.