charlie_p_davies Posted June 3 Share Posted June 3 I wanted to test some attribute variations using Labs file cache wedging. I can get this to work with a pop solver, vellum solver etc. but doing the same method with an MPM solver causes an error, does anyone know how to solve this? I have tried it in this screenshot with a simple switch between 2 sources, but also tried with one source on the density attribute, neither works. Quote Link to comment Share on other sites More sharing options...
sipi Posted June 4 Share Posted June 4 (edited) On 6/3/2025 at 1:59 PM, charlie_p_davies said: I wanted to test some attribute variations using Labs file cache wedging. I can get this to work with a pop solver, vellum solver etc. but doing the same method with an MPM solver causes an error, does anyone know how to solve this? I have tried it in this screenshot with a simple switch between 2 sources, but also tried with one source on the density attribute, neither works. What is the error? Can you post a hip file? It works for me: mpm_wedge_test.hiplc (i drive jitter scale in MPM Source SOP for testing) Edited June 4 by sipi Quote Link to comment Share on other sites More sharing options...
charlie_p_davies Posted June 5 Author Share Posted June 5 Thank you Sipos, this is really helpful. Your file worked for me so I tested the same setup on your file cache on the HIP file I was working on and it worked. The only other difference from my initial test was I'd opened it on a different computer. It turns out it just isn't working with MPM on my second PC, assumed it was the version of Labs I was using but I've updated both and it still just doesn't work on that second PC so I'll have to do some testing. Quote Link to comment Share on other sites More sharing options...
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