Rakibul H. RaFi

Hi, I am trying to achieve this kind of tearing effect in Houdini. but not getting the desired result. Can anyone tell me how I can get this kind of effect where I can get tears in my masked areas? And also what would be the best method for masking? like point, edges or primitive selection for masking
https://imgur.com/a/mR1BFzM [imgur.com]

amk543
Hello!

I have been working on a really simple vellum grain simulation, but I keep receiving this error: OpenCL Exception: clFinish (-36)
My vellum solver also indicates this error: Error vellumobject1 - /obj/vellum/dopnet1/vellumsolver1/graph_color_constraints: Error: OpenCL Exception: Interruption while waiting for kernel compile. (-1) Unable to cook the test input. Error vellumobject1 - /obj/vellum/dopnet1/vellumsolver1/ocl_neighborsearch_grains: Warning: /obj/vellum/dopnet1/vellumsolver1/ocl_neighborsearch_grains/neighborsearchcl1: Invalid attribute specification: "Missing name or piece attribute.". Error: /obj/vellum/dopnet1/vellumsolver1/ocl_neighborsearch_grains/neighborsearchcl1: OpenCL Exception: clFinish (-36)

I have been trying to search through the forums and google on my own, but nobody seems to have a way to fix this issue. I'm already running the latest NVIDIA studio driver (version 577.00) and I have a 4700 laptop. There shouldn't be any issues on a GPU end. I've also tried to add "HOUDINI_OCL_DEVICETYPE=GPU" into my Houdini env file, but that caused more problems so I had to remove it.

Does anyone have any ideas as to why I'm receiving such errors despite this being a relatively simple simulation or how to fix it?

I don't know many details about it. In the past I faced this, and it was something like a vellum issue with GPU OpenCL. To fix this, go to Edit > Preference > Miscellaneous. At the bottom, set OpenCL Device to CPU. Hope that will fix the issue.