0rr Posted March 3, 2012 Share Posted March 3, 2012 hi, just recompiled some old hdk plugin which generates fancy point clouds. h12 generated 100mio points around 1-2 minutes ram usage was around 4gigs (only P and Cd attributes). here's a result with some additonal stuff and dof renderd in mantra . Quote Link to comment Share on other sites More sharing options...
dbukovec Posted March 3, 2012 Share Posted March 3, 2012 it looks incredibly good! Quote Link to comment Share on other sites More sharing options...
thinkinmonkey Posted March 3, 2012 Share Posted March 3, 2012 WoW! I don't know what it is, but I like it very much! Could you explain better how you obtained that? Did you use some fractals formula? Was it just random? Particles in a fluid simulation? As usual, if you can share! Quote Link to comment Share on other sites More sharing options...
Eisenhans Posted March 3, 2012 Share Posted March 3, 2012 I have second thoughts about the white discs, but the fractal is great. Quote Link to comment Share on other sites More sharing options...
0rr Posted March 3, 2012 Author Share Posted March 3, 2012 WoW! I don't know what it is, but I like it very much! Could you explain better how you obtained that? Did you use some fractals formula? Was it just random? Particles in a fluid simulation? As usual, if you can share! It was the first plug-in I did just to get familiar with the hdk. It's basically the chaos game algorithm with some linear and non linear transformations. Point generation is now pretty fast with h12. Here's what it looks like inside of Houdini: Quote Link to comment Share on other sites More sharing options...
nord3d Posted March 3, 2012 Share Posted March 3, 2012 Super fantastic! 100 mio points - it looks very promising. I guess now (with H12) I should also resume my experiments in the field of point-shaders... Quote Link to comment Share on other sites More sharing options...
eetu Posted March 3, 2012 Share Posted March 3, 2012 Gorgeous! Quote Link to comment Share on other sites More sharing options...
rdg Posted March 3, 2012 Share Posted March 3, 2012 I have second thoughts about the white discs, but the fractal is great. Yeah, the fractal looks incredible. Quote Link to comment Share on other sites More sharing options...
Nico D. Posted March 7, 2012 Share Posted March 7, 2012 Amazing ! Quote Link to comment Share on other sites More sharing options...
LEO-oo- Posted March 7, 2012 Share Posted March 7, 2012 Cool! Nice work! Quote Link to comment Share on other sites More sharing options...
0rr Posted March 7, 2012 Author Share Posted March 7, 2012 (edited) thanks everyone. here's an animation test I did. 30mio points per frame. takes around 10-15 secs creating the points per frame. preview: link animation test sry about the compression. Edited March 7, 2012 by 0rr Quote Link to comment Share on other sites More sharing options...
thinkinmonkey Posted March 7, 2012 Share Posted March 7, 2012 Oh, man, it's beautiful and hypnotic! I like the end with the fish shape. Quote Link to comment Share on other sites More sharing options...
Solitude Posted March 8, 2012 Share Posted March 8, 2012 How long do they take to render? Is that the time you're talking about? Or is that just for creating the points? Quote Link to comment Share on other sites More sharing options...
0rr Posted March 8, 2012 Author Share Posted March 8, 2012 How long do they take to render? Is that the time you're talking about? Or is that just for creating the points? around 5 minutes per frame using raytracing. no optimizations. Quote Link to comment Share on other sites More sharing options...
moondeer Posted March 9, 2012 Share Posted March 9, 2012 this point generator looks like fun. any chance of sharing it? Quote Link to comment Share on other sites More sharing options...
magneto Posted March 9, 2012 Share Posted March 9, 2012 Looks amazing. I would be interested to know what algorithm you used to generate your points cloud Just a mention of it is enough if it's not a secret. Quote Link to comment Share on other sites More sharing options...
J.Santos Posted March 10, 2012 Share Posted March 10, 2012 Super awesome!!! Quote Link to comment Share on other sites More sharing options...
neonbulbs80 Posted March 11, 2012 Share Posted March 11, 2012 Simply amazing..! Quote Link to comment Share on other sites More sharing options...
Jason Posted March 12, 2012 Share Posted March 12, 2012 That looks really cool Now you're rendering points, do you know about the new vm_geometryfilter property? It's another thing not in the Whats New, but search for "Geometry Filter Width" on this page: http://www.sidefx.com/docs/houdini12.0/props/mantra. It will clamp sub-pixel point prims and curve prims and decrease opacity instead. It can help get smoother render with a lower number of samples - at a price, of course, but it could be worth it! Quote Link to comment Share on other sites More sharing options...
0rr Posted March 12, 2012 Author Share Posted March 12, 2012 (edited) That looks really cool Now you're rendering points, do you know about the new vm_geometryfilter property? It's another thing not in the Whats New, but search for "Geometry Filter Width" on this page: http://www.sidefx.com/docs/houdini12.0/props/mantra. It will clamp sub-pixel point prims and curve prims and decrease opacity instead. It can help get smoother render with a lower number of samples - at a price, of course, but it could be worth it! Thanks for the hint. The actual render is a little bigger but also very noisy maybe the geometry filter width can help to reduce that. One problem I had was while rendering the points alone the memory mantra used was pretty okay ... but as soon as I added the wires and the discs mantra used way more memory. Any Idea what was causing this? I should have rendered them in an separate pass anyway, if at all. Edited March 12, 2012 by 0rr Quote Link to comment Share on other sites More sharing options...
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