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We're testing an upgrade to our pipeline moving from Maya 2015 and I think V-Ray 3.3 to 2017 with 3.5 (the official release, not a nightly), and an important part of our pipeline moving forward is using OCIO, but I've run into an issue in testing:
With "Use OCIO Correction" enabled in the V-Ray frame buffer and a simple film look OCIO config from SPI loaded I am seeing significant slowdown when using IPR/V-Ray RT (CPU). This slowdown affects interaction speed in navigating a perspective view in a regular Maya viewport, selection of objects and lights in that viewport, as well as the update speed of scene changes back into V-Ray RT.
Switching back from an OCIO correction to using the old "Display Colors in sRGB Space" mode, even while RT is active, immediately brings back the speed of response in both Maya and VRay that I would expect.
Initial testing was done in a car scene with lots of polygons and textures, but effectively the same effect was observed in a scene with 9 teapots and only a couple normal maps. We're also getting the same slowness both with the SPI OCIO config we downloaded and our own configs (though those aren't quite fully sorted out yet)
Is considerable slowness something I should expect with the combination of RT and OCIO together, or is something going wrong here?
Thanks!
peteReynolds
Armstrong White
We're testing an upgrade to our pipeline moving from Maya 2015 and I think V-Ray 3.3 to 2017 with 3.5 (the official release, not a nightly), and an important part of our pipeline moving forward is using OCIO, but I've run into an issue in testing:
With "Use OCIO Correction" enabled in the V-Ray frame buffer and a simple film look OCIO config from SPI loaded I am seeing significant slowdown when using IPR/V-Ray RT (CPU). This slowdown affects interaction speed in navigating a perspective view in a regular Maya viewport, selection of objects and lights in that viewport, as well as the update speed of scene changes back into V-Ray RT.
Switching back from an OCIO correction to using the old "Display Colors in sRGB Space" mode, even while RT is active, immediately brings back the speed of response in both Maya and VRay that I would expect.
Initial testing was done in a car scene with lots of polygons and textures, but effectively the same effect was observed in a scene with 9 teapots and only a couple normal maps. We're also getting the same slowness both with the SPI OCIO config we downloaded and our own configs (though those aren't quite fully sorted out yet)
Is considerable slowness something I should expect with the combination of RT and OCIO together, or is something going wrong here?
Thanks!
peteReynolds
Armstrong White
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