evanrudefx Posted December 29, 2020 Share Posted December 29, 2020 Hello, I cannot figure out what the problem is. I was rendering this shot and for some reason the water glitched badly on some frames, as seen in the gif. I found out its because the union compressed fluid setting on the particle fluid surface node is randomly not working on some frames. Causing the inside of the flip mesh to freak out on some frames. My second gif is the inside of the mesh. You can see the frame where the union compressed fluid fails. There is extra mesh detail on the inside What is causing the union compressed setting to break randomly on these frames? link to hip- https://drive.google.com/file/d/1yogPTwvo1pDXj5yx7WW_xVHYn64tjqpl/view?usp=sharing Quote Link to comment Share on other sites More sharing options...
evanrudefx Posted December 30, 2020 Author Share Posted December 30, 2020 (edited) d Edited December 30, 2020 by ejr32123 Quote Link to comment Share on other sites More sharing options...
evanrudefx Posted December 30, 2020 Author Share Posted December 30, 2020 (edited) found the problem, its because when you enable union compressed fluid surface, it uses a union operation in a vdb combine with the surface from the compressed cache and the vdb particle fluid. For some reason the surface was too small on some frames and the union operation. failed. A simple vdb reshape sdf with dilation fixed it Edited December 30, 2020 by ejr32123 2 Quote Link to comment Share on other sites More sharing options...
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