CompuServe Messages

Bump map render glitch

    03-Aug-94 09:53:29
Fm: Bruce Meikle 72614,2334
To: Richard Ciano 73443,2125
I've had a similar problem just recently. I've just uploaded an example of it called PRBLEM.GIF in the images library, if you're interested (wait for the sysop to post it). I'm wondering if it's related to a glitch with ray-traced shadow casting spotlights which go a bit screwy if they hit an object that is self intersecting. The sea in the image had a bump map to simulate waves which rendered ok in other views but went nuts in this one. The material is on a flat plane but many of the objects I modelled penetrated the plane, rather than sat on top of it. The heavy raster lines were introduced at rendering and I'm wondering if this is related. Sound similar? Any ideas, anyone else? BPM