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Looking for any tips on rendering really large point clouds in Vray 3. Wondering if there are specific things to avoid or items that can significantly improve/hurt times. Right now I have a pretty basic scene with some geometry and then one 481M Recap point cloud. Run into problems when rendering & the camera shows the entire point cloud at once, even if it's really far away and my settings are pretty low. GI off, Adaptive DMC 1 2, lights shadows off, Dynamic Mem limit 0. Pretty much default otherwise. Using the default Adsk Point Cloud Material, Vray Mat on the little bit of regular geometry in scene. 1280x720 Render times when in close are only a few minutes, but zoom way out and they spike suddenly to 1.5-2hrs a frame. Point cloud is set to fixed in rendering LOD 8. I noticed it was essentially trying to load millions of points into a single bucket on those far out frames, so i reduced my bucket size all the way down to 4x4 and that improved things somewhat, but still around an hour a frame. Mix of 16 & 32core machines with mostly 32Gb RAM. If I get time I'll compare against MR with this project, but I wasnt getting those level of times before from what I recall on other projects.
Thanks!
Edit: I've noticed that one of machines has 48GB of RAM and it is rendering the frames twice as fast despite being one of the 16core machines. Sounds like the others must be running out of ram and doing lots of loading & unloading geometry and/or paging to disk?
Thanks!
Edit: I've noticed that one of machines has 48GB of RAM and it is rendering the frames twice as fast despite being one of the 16core machines. Sounds like the others must be running out of ram and doing lots of loading & unloading geometry and/or paging to disk?
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