rayt Posted October 21, 2016 Share Posted October 21, 2016 Is there a way to freeze the transforms of a curl noise in a DOP popvop? I am running a point sim and my source emitter object is animated and rotated in world space. When the points emit, the curl noise added to the point position slides. I'm really not sure what to do in the popvop to freeze the curl noise. Ive tried using a popforce, however the curl noise does not seem to create the same shapes that the popvop does. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
dchow1992 Posted October 21, 2016 Share Posted October 21, 2016 use a "rest position" to lookup into the noise. rest_noise.hip Quote Link to comment Share on other sites More sharing options...
rayt Posted October 21, 2016 Author Share Posted October 21, 2016 The curl noise needs to be driven through a particle dop network. Your file makes sense for a sop object Quote Link to comment Share on other sites More sharing options...
dchow1992 Posted October 21, 2016 Share Posted October 21, 2016 you are able to use sop attributes in dops just bind the attribute in your pop vop (assuming it exists on the geometry) and use it the same way Quote Link to comment Share on other sites More sharing options...
rayt Posted October 21, 2016 Author Share Posted October 21, 2016 The object I am emitting from is a polygon surface converted from a vdb as the original geo is garbage. Is there a way to set a rest on an object with a changing point count? Quote Link to comment Share on other sites More sharing options...
dchow1992 Posted October 21, 2016 Share Posted October 21, 2016 as a workaround you can try to take one frame of your converted vdb and point deform your converted vdb using the original geometry, assuming the original geometry has a stable point count. then you can use your deforming static point count mesh to generate the rest position. Quote Link to comment Share on other sites More sharing options...
rayt Posted October 21, 2016 Author Share Posted October 21, 2016 Would you have a working file I could take a look at. I have attempted to set up a point deform on my vdb mesh however the vdb polys do not line up with the original poly mesh Quote Link to comment Share on other sites More sharing options...
dchow1992 Posted October 22, 2016 Share Posted October 22, 2016 can you post your file Quote Link to comment Share on other sites More sharing options...
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