I selected to load it as an alpha channel, not transparency.
VRAY 3.6 NOT SAVING VRAY RAW IMAGE FILE HOW TO
exr filter on opening, a dialog will pop asking how to load the alpha channel (even if not existing). exr.Īu contraire, crashes might occur when exporting. exr files, for obvious memory reasons.Įven so, allocate lots of ram for PS and hdds with lots of free space for temps (in excess of 40GB, beware SSD owners), from options-performance in ps, before opening the. I recommend using a 圆4 version of PS for opening huge. STEP 4 - hold your horses, step 3 needs an addendum: exr home site you will find a PS filter for opening this format, freely downloadable, although I found it unnecessary. (it seems the new filter has some channel issues some users on the net found undesirable).Īlso on the. exr filter used by PS has changed on the recent versions, and you might find usefully to know that the old filter can be still used instead of the new by simply overwriting the corresponding file. Adobe has a exr2png ($) conversion utility but with limited options.īeware, the. exr format, and is the only image editor able to do it, as far as I found. STEP 3 - open the file.exr with Photoshop
VRAY 3.6 NOT SAVING VRAY RAW IMAGE FILE 32 BIT
"- bufsize 2000" sets the working buffer to 2GB of ram, and the bigger the better (speed wise), but exceeding 3000 caused crashes as this utility might be 32 bit only.
"- half" parameter makes the conversion using 16 bit per channel instead of float 32, and not only is crucial to later conversions but reduces file size dramatically as it enable compression (from 3.7 GB to 70 MB in my case)
exr.Įxample: vrimg2exr file.vrimg file.exr -half -bufsize 2000 Get chaosgroup utility vrimg2exr.exe - it is part of vray for 3ds, but not for ketchup, so I don't know how you will do that vrimg2exr.exe is a standalone command line utility, that allows transformation of the proprietary. You better have a rendering farm or a spare computer you can forget of for a while at this point. Tip: do not render channels you won't use, so, if you do not need an alpha channel, uncheck it from options - VFB channels STEP 1 - render to VRImage Raw Image file, and leave VFB mode to Preview or No Memory So, exporting to an usable format like PNG or JPG was impossible.Īs we cannot wait hours (or days) for renders to complete just to have vray crashing on us on export, an alternative method needed to be found. Vray 1.4 constantly crashed when trying to render at high resolutions like 32K x 16k or quad that.
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