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EXR from V-Ray 5.2 render channels IDs pure white

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Hi there, recently im trying to use an EXR saved from V-Ray 5.2 and there's something wrong when oppening it, my ID channels (renderID, MaterialID, ObjectId) appears pure white, but theres some info in the channels, if I use tone compreesion or exposure it brings back some information color but only on Greyscale, another thing is that when using composite and try to use the tone compression persona in another channels instead of compress highlights it increases the gamma.

Here you can find the file in EXR, the Id channels how are supposed to be and some examples of what im reffering to 

IDs Tone Compression Greyscale.jpg



Shadow Catcher.exr Shadow Catcher.VRayMtlID.tif Shadow Catcher.VRayObjectID.tif Shadow Catcher.VRayRenderID.tif

Tone Compression.jpg

Without Tone Compression.jpg

Edited by ChuckRT
error at upload
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You can use the 32-bit preview panel to adjust exposure and gamma. 
the lightness values of that  layer are far outside the regular range (0 to 1).

When you reduce exposure to about -7, more colors become visible.

PS: I agree, the VRayRenderID layer renders strange (isolated mode, or copy / paste as new document).

The top part is always displayed as outblown, no matter what exposure correction use used (32-bit preview, or multiple levels adjustments to limit output white to 1%)

With EDR enabled on Mac, it gets rendered blue/green (teal). With EDR inactive, white. When trying to do a screen capture, the capture shows black.

Using the Histogram Panel and raising "max" level does not give any insight about lightness above 1.0.


Maybe some +infinity values?


Edited by NotMyFault

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Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.


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