VRay GPU 6.2 3dsMax 2024 Bitmap colour space support

[piotrus3333]

I'm not able to make VRay GPU respect colour space of native 3dsMax Bitmap loader.

Bug or did I miss something?

[vladimir_krastev]

Hi, thanks for posting.

Could you explain your issue in a bit more details, if possible with examples?
What colour space are you using? Are you testing the 3ds Max's aces colour management?

[piotrus3333]

3dsMax color managed with OCIO (default one or any custom config I tried)
rendering space: both sRGB and ACEScg
native Bitmap texture loader is shown correctly in the viewport according to colour space picked while loading the texture (so gamma corrected srgb or AP1 in my case) and view transform
VRay renders the Bitmap correctly
VRay GPU renders the Bitmap incorrectly, always interpreting it as Raw.

[vladimir_krastev]

Hi, the issue is reproducing in a simple scene. We reported it under VMAX-13903 in our bug tracking system. We will notify you when the fix is ready.

Until then please convert your Bitmaps to VRayBitmaps.

[piotrus3333]

Hi, the issue is reproducing in a simple scene. We reported it under VMAX-13903 in our bug tracking system. We will notify you when the fix is ready.

Until then please convert your Bitmaps to VRayBitmaps.

Thank you.
I'm looking forward to any available info on that.

VRayBitmap needs VRayOCIO node to have access to 3dsMax's OCIO config. not ideal.