Booleans work great with SDS as long as they stay SDS. It seems to be more of a rendering thing. RS does not resolve the boolean result with regard to the polys/triangles upon conversion or export. I know it's been on my wishlist for a while.
Check out Alessandro's Revolution 4d plugin for booleans. http://www.deltaknowledge.com/revolution4d/index.php cm From: Alasdair <[EMAIL PROTECTED]> Thanks, then the boolean operation should not be available when sds object are selected ?AlasdairÂÂ