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This is a description of 4 issues I've run into while in the same scene using V-Ray GPU:
- IPR stuck on mtl override. After enabling and then disabling the override, the IPR never goes back to using assigned materials. Luckily the GPU renderer is fast enough that I can use Production rendering to preview changes but, nonetheless, it's an annoying bug. This issue has been permanent in my scene despite restarts and many settings, materials and scene changes.
- Changing Phys Camera settings has no effect on exposure. After disabling auto exposure/white balance, changes made to the Max Phys Camera had no effect on the exposure of the render. The image was way overexposed and only worked correctly when auto exposure was re-enabled. Restarting Max solved this and I haven't managed to recreate the issue.
- Some sort of limit terminating the render suddenly and inexplicably takes effect. After many days of working on the scene, test rendering up to thousands of passes at a time, all of a sudden the Production rendering (in Progressive mode) started terminating prematurely (under 1000 passes, lot's of noise). Setting the Noise Limit to 0.0 and using the Time Limit to try and control the render had no effect. Restarting Max solved this issue.
- IPR restarts for no reason. While the IPR was still working (see point 1), the IPR would restart even though no changes to the scene or camera were made. Since the issue covered in point 1 has occured, I've not been using the IPR so cannot confirm whether or not the issue is still present.
None of these problems are critical, I just thought it would be good to make Chaos Group and the community aware of them. All in all, I'm really happy with V-Ray GPU. Love the speed!
- IPR stuck on mtl override. After enabling and then disabling the override, the IPR never goes back to using assigned materials. Luckily the GPU renderer is fast enough that I can use Production rendering to preview changes but, nonetheless, it's an annoying bug. This issue has been permanent in my scene despite restarts and many settings, materials and scene changes.
- Changing Phys Camera settings has no effect on exposure. After disabling auto exposure/white balance, changes made to the Max Phys Camera had no effect on the exposure of the render. The image was way overexposed and only worked correctly when auto exposure was re-enabled. Restarting Max solved this and I haven't managed to recreate the issue.
- Some sort of limit terminating the render suddenly and inexplicably takes effect. After many days of working on the scene, test rendering up to thousands of passes at a time, all of a sudden the Production rendering (in Progressive mode) started terminating prematurely (under 1000 passes, lot's of noise). Setting the Noise Limit to 0.0 and using the Time Limit to try and control the render had no effect. Restarting Max solved this issue.
- IPR restarts for no reason. While the IPR was still working (see point 1), the IPR would restart even though no changes to the scene or camera were made. Since the issue covered in point 1 has occured, I've not been using the IPR so cannot confirm whether or not the issue is still present.
None of these problems are critical, I just thought it would be good to make Chaos Group and the community aware of them. All in all, I'm really happy with V-Ray GPU. Love the speed!
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