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prman-pixar / RenderManForBlender

RenderMan for Blender render addon
MIT License
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Object exports with another object's geometry #696

Closed erjiang closed 11 months ago

erjiang commented 11 months ago

I have a scene where when I render with Renderman, one of the objects incorrectly uses another object's geometry instead of its own geometry. I can share the scene if you can send me a link to where you want me to upload the file (email is on my Github profile).

prman-pixar commented 11 months ago

@erjiang

You should be getting an e-mail with a BOX folder link shortly. Please upload this one and the one for #692 .

erjiang commented 11 months ago

I have uploaded "painter9-buggy.blend", which should demonstrate both this issue and #692.

  1. In IPR, object "ceramic2" and "ceramic8" take on the geometry of "tarp2"
  2. Object "Split Diopter" triggers issue #692 (but I think #695 fixes that problem)
prman-pixar commented 11 months ago

Thanks. I will merge in your change for the index error.

With regards to this issue, are you on Windows? If so, do you have "GPU Subdivision" turned on? If it's on, try turning it off and see if you get the right render.

If you do get the right render, this is a bug on the Blender side (https://projects.blender.org/blender/blender/issues/111393). I committed a workaround fix for it, though, so double check to see if your local version has my change: https://github.com/prman-pixar/RenderManForBlender/commit/8fe492fda06ca8da6f800e2977ac17d354b34683

erjiang commented 11 months ago

With regards to this issue, are you on Windows? If so, do you have "GPU Subdivision" turned on? If it's on, try turning it off and see if you get the right render.

Makes sense, the problem objects all had a subdivision modifier. I am on Linux and turning off GPU subdivision does fix the issue.

If you do get the right render, this is a bug on the Blender side (https://projects.blender.org/blender/blender/issues/111393). I committed a workaround fix for it, though, so double check to see if your local version has my change: https://github.com/prman-pixar/RenderManForBlender/commit/8fe492fda06ca8da6f800e2977ac17d354b34683

The dev branch also does not have this problem.