CompuServe Thread

Penello

3 messages in this thread
#146640From: EDWARD HARVEYJan 13, 1995 6:50 PM
John, I enjoyed your article in CGW on Penello. Ive been working with the demo, trying to decide whether to get it. I could understand all the images in the article except the one to the far right with what looked like bumps on a map. How did you achieve this with Penello? Are the bumps from a brush or are they geometry? If they are a brush I cant figure out how they dont overlap and seem to reflect light. Thanks in advance, Ed Harvey
#148291From: John TissavaryJan 21, 1995 9:32 PM
I can't remember the exact procedure, since CGW mistakenly credited me (indirectly) with the image, when in fact Lior Saar, head programmer of Pennello, did it. He used a bubbly looking brush, set the parameters so that it looked like the bubbles were moving down the image, then rendered the animation out. I'm not sure what his source and background images were, but Lior uses a lot of captured video, so it's possible that there's some video in there. then he used the rendered/brushed images as a bump map on a rectangular plane, rendered that out with some well placed lights, and viola! John Tissavary | LUNA cie, inc
#148296From: EDWARD HARVEYJan 21, 1995 10:24 PM
Thanks, bump mapping makes sense. Ed