CompuServe Thread

#Rendering Noise-Shadows?

3 messages in this thread
#40943From: Nik Grant [adesk]Apr 20, 1993 11:20 AM
A customer has called with a question that I need some help with. While rendering to video, some frames show noise, which the customer describes as looking like a worn out video tape. There are 2 3DS files involved, an exterior (one light, shadow map = 512) which renders correctly every time, and an interior (41 lights, 5 of which cast shadows, shadow map =1600) which renders with intermittent "noise". The noise may or may not show up on any given frame. A restriped new tape gives the same results. Any clues? Thanks for your help. Nik
#41010From: Apr 21, 1993 12:38 AM
Nik: The first thing I'd have him do would be to render to disk and tape at the same time and compare the files with 'noise' to see where his problem really is. Greg Pyros
#41014From: Nik Grant [adesk]Apr 21, 1993 7:13 AM
Thanks Greg. I suspect that we'll see clean disk renderings. Yann was wondering if the large number of lights might be creating illegal colors, and Jamie asked if the rendering was being done with a Weitek chip, since he'd experienced some noise from a defective Weitek. I'll let the customer know your thoughts. P.S. (I guess this is how conversations veer from their stated Subjects!) Saw the newsletter! Excellent! I ran into Angelo at FOSE in Washington D.C. and got a copy. I'm looking forward to the next editions too. Surprised I didn't see an ad for your IPAS utilities though. Nik