g17 Posted October 26, 2014 Share Posted October 26, 2014 Hello guys, i am actually having two volumes one on top of each other like a skin layer on top of the muscle.What i am trying to achieve here is, if the top layer is partly removed ,the second layer must be visible.Since i am opting for an organic look and the geos are complex ,i looking for a solution in volumes.It would be great if someone can point me in the right direction Thank you -Ganesh Quote Link to comment Share on other sites More sharing options...
shanshore Posted October 27, 2014 Share Posted October 27, 2014 Ganesh, Your question is not clear to me. Please specify more details.. Are you looking for - a. How to remove one volume partly / procedural way. b. How to place them or render them so that when one volume is partly removed, that reveals the other Cheers Shan Quote Link to comment Share on other sites More sharing options...
g17 Posted October 27, 2014 Author Share Posted October 27, 2014 (edited) Hi shan, Sorry for not being clear. Yes i am looking for ways to remove the top layer like an erosion and render them.I tried using VDB,Volume nodes.volume vop but i couldn't figure it out.Please help me with this issue Thank you Ganesh Edited October 27, 2014 by g17 Quote Link to comment Share on other sites More sharing options...
shanshore Posted October 27, 2014 Share Posted October 27, 2014 Ganesh, In the eroding volume, you can set the density 0 in some areas. Then make these 0 density areas to grow. This can be done in many ways. a. Use VDB vop, create any noise node, fit it to 0-1 and then multiply it with the density. b. To have more control on the erosion, scatter some points on this volume. In VDB vop, (instead of noise) use point cloud to source these points. calculate the distance from each voxel to the closest point. If the distance is below certain threshold value, reduce the density to 0. Then you can increase the threshold over time, increase the scattered points density, etc.. All the best!! Quote Link to comment Share on other sites More sharing options...
g17 Posted October 27, 2014 Author Share Posted October 27, 2014 Hi shan , Thank you for your quick reply. I will give a try.One more quick question (sorry for the repeat question) If i have multiple volumes and can i run these operation on the top volume so that the underneath volume be visible. Thank you, Ganesh Quote Link to comment Share on other sites More sharing options...
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