Normal map standard wrong

[Henrik_N]

When making a new generic material, the normal map is set to sRGB when applying a texture - resulting in very wrong looking materials. The standard should be Linear for the result to be right.
It took me longer to realize that issue than i am happy to admit, so for most people, i would expect it to create a lot of issues.

[Peter.Chaushev]

Hello, Henrik,

In V-Ray 3 for Rhino assigning an image file to a Bitmap texture automatically sets its color space based on the loaded file format:
- for *.pic, *.hdr or *.exr, it is assumed to be Linear (Gamma: 1.0)
- otherwise assumed to be sRBG (Gamma: ~2.2)

This behavior is set for Bitmap Texture regardless of where it is slotted.
There are no plans to add any special case behavior on top of the current one in order to keep it simple and to prevent future conflicts with the development of texture instancing we're working on.

For more info on gamma management, please visit https://docs.chaosgroup.com/display/...s-ColorMapping

Let me know if you have any further questions!

Kind regards,
Peter

[Henrik_N]

"There are no plans to add any special case behavior on top of the current one in order to keep it simple and to prevent future conflicts"

Well unfortunately it means there will be a lot of conflicts, and more complicated, for the users. The normal map has to be in linear to work. I understand the issue, and fully understand gamma management, but since making the interface simpler seemed to be a priority for v-ray 3 compared to v-ray 2, this should naturally be handled differently.

[Micha]

Henrik_N Thank you for bringing this problem on the table. Peter.Chaushev Today I used normal mapping first time and I run in the situation that it doesn't work. Only searching on the forum helps me to get it working. It's a pity that there is no straight usage solution. At least a note could be there that the user need to switch no linear mode. Finally I'm impressed about the nice working normal map effect.