CompuServe Messages

#LW Spline Patching

    17-Jul-94 12:46:24
Sb: #LW Spline Patching
Fm: David Fyfe 73633,3347
To: All
Hi. I was hoping someone may be able to help me. I've been working on a project that requires the use of spline patching. Everything works out fine up until I render the object (a plant). When I use shadow mapped or ray traced shadows, the shadowing is choppy and you can see the triangular polygons on the edge of the shadows. In some places where it should be completely shadowed, some polygons are not shadowed at all. Anyone know what causes this? I've tripled all polygons as well as subdivided (smooth) them and it doesn't seem to help. I also merged all points and made sure there are no nonplanar polygons. Thanks in advance. Dave