brandonY Posted February 27, 2006 Share Posted February 27, 2006 hi guys, i been doing alot of the VOP tutorials, and i was wondering if it would be that hard to do a animated frost effect? i know of the mandelbrot set in VOPS, and i think this would be the keystone of achieving this effect. any thoughts? thanks! -Brandon Quote Link to comment Share on other sites More sharing options...
Jason Posted February 27, 2006 Share Posted February 27, 2006 For the pattern, you might get something interesting from that, yeah - at least get some ideas from it. Are you talking about frosted windows? As for the distribution (not the pattern) of the frost, it might be a fun idea to use the Occlusion VOP to make areas less exposed to light be frosted up. Modulate this by some low frequency noise pattern and perhaps some manual painting too and you might have a nice system for distributing frost in a scene. Good luck! Jason Quote Link to comment Share on other sites More sharing options...
brandonY Posted February 27, 2006 Author Share Posted February 27, 2006 For the pattern, you might get something interesting from that, yeah - at least get some ideas from it.Are you talking about frosted windows? As for the distribution (not the pattern) of the frost, it might be a fun idea to use the Occlusion VOP to make areas less exposed to light be frosted up. Modulate this by some low frequency noise pattern and perhaps some manual painting too and you might have a nice system for distributing frost in a scene. Good luck! Jason 25109[/snapback] well could be frosted windows, i wanted to make the frost grow over some geometry as if it was freezing quickly. i will play with some ideas, thanks again Quote Link to comment Share on other sites More sharing options...
jjstanley Posted February 27, 2006 Share Posted February 27, 2006 I don't know if you saw the "Big Freeze" FX War cahllenge as CGTalk a while back but there was some interesting approaches. You can check it out at http://forums.cgsociety.org/search.php?searchid=3395695 Quote Link to comment Share on other sites More sharing options...
Visual Cortex Lab Posted February 27, 2006 Share Posted February 27, 2006 ... link not working? or is just me? Quote Link to comment Share on other sites More sharing options...
sibarrick Posted February 27, 2006 Share Posted February 27, 2006 How about growing some lines (a L-system maybe) or particles across the surface then using attribtransfer to assign an attribute to the surface based on proximity of the points. use the transferred attribute to drive a frost shader. Quote Link to comment Share on other sites More sharing options...
michael Posted February 27, 2006 Share Posted February 27, 2006 I remember this sketch at SIG 04: http://www.siggraph.org/s2004/conference/s...php?=conference here is the paper: http://gamma.cs.unc.edu/HYB_ICE/ CAUTION : there is some math in there! Quote Link to comment Share on other sites More sharing options...
jjstanley Posted February 27, 2006 Share Posted February 27, 2006 ... link not working? or is just me? 25117[/snapback] I don't know what's up there because it was working but if you go to http://forums.cgsociety.org/forumdisplay.php?f=139 and just type Big Freeze in the search at the bottom of the page it will bring up lots of entries. Quote Link to comment Share on other sites More sharing options...
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