View Full Version : Ray-Traced Shadow Anomalies

11-15-2004, 07:57 AM
My apologies if this was covered in another thread.

I'm test rendering a scene in LW 7.5 that contains a backlit, smooth, rounded surface. When I render without ray-trace shadows on, everything is fine, I am just missing the shadows I want. When I turn ray-traced shadows on, the normal shadows I expect are there along with a couple of geometrically-shaped shadows where there should be none (one is right in the middle of the highlighted area the spotlight is aimed at!).

Has anyone else encountered this? Anyone know how to fix it?

Thanks for the help,

11-15-2004, 08:53 AM
Hard to tell what's going on... maybe a problem with your geometry
could you post a screen capture? it may help us to solve your problem

11-15-2004, 01:21 PM
43K image:

11-17-2004, 06:55 AM
you are talking about the little black triangle in the center of your spaceship, right?
if yes then.. , it look smooth but maybe it's because you have "smoothing" "on" in the "surface panel"... and that maybe your nurbs-cage itself is very low in polygons...

you may want to try to go in the "property" of the object in the layout and change "render subpatch level" to "6" for example (from the default value which is 3) (it will had more faces to your nurbs cage if case you did not know)

it might help..