Andre W B Furtado wrote:
[...] In HOpenGL, to create a new Quadric, the command is:
qObj <- newQuadric
But how do I issue deleteQuadric? [...]
Simple answer: Never! :-) The garbage collector automatically takes care of this via the ForeignObj mechanism (well, this should be ForeignPtr or something in future versions). deleteQuadric is oly use internally and not exported, anyway. examples/redbook_HS/Quadric.hs demonstrates the usage of quadrics in HOpenGL. Tesselators and NURBS are not explicitly deleted, either, BTW. OTOH, I must admit that I haven't used GLU's quadrics, tesselators, and NURBS extensively yet. They are quite a moving target in different OpenGL versions, but things have settled down a bit recently. As always, API critique and suggestions are highly welcome. Cheers, S. -- Sven Panne Fon: +49/89/99567000 Fax: +49/89/99567461 BetaResearch GmbH, Betastr. 1, D-85774 Unterfoehring mailto:Sven_Panne@BetaResearch.de http://www.betaresearch.de