CG Source multitexture and converting to vray bitmaps

[Mr.Mxyzptlk]

Using CG Sources MultiTexture with their Floor Generator. When I try to convert the bitmaps to vraybitmaps only the first node is swapped out. It generates the rest of the vraybitmaps but doesn't swap out the node. I'm working in ACES and wondering the best way to do all of this.

[hermit.crab]

Yes, it seems to convert only the "current" texture. You can solve this by ticking the "Convert All scene Objects' Bitmap texmaps to VRayBitmap texmap" option in the V-Ray Bitmap to VRayBitmap converter.

[Mr.Mxyzptlk]

Thank you this worked. What would be the fastest way to convert each ones color space transfer function and RGB color space so it will still be in ACES?

Do I need to use a script like this?

https://forums.cgarchitect.com/topic...y-and-3ds-max/

[francomanko]

thats the script i use..great script.

[Mr.Mxyzptlk]

thats the script i use..great script.

I can't get it because it's .ru

Any other place to get it from?

[^Lele^]

Do you need *every* vrayBitmap to be converted to a specific color space, or do you want it done selectively only on color maps?

[^Lele^]

Thank you this worked. What would be the fastest way to convert each ones color space transfer function and RGB color space so it will still be in ACES?

The attached will change all the vraybtimap and all the vraycolor textures that belong to a shader to sRGB or ACEScg primaries.
No change to the color space transfer function will take place, so your original gamma settings will be respected, and there shouldn't be any issue with data versus color channels (assuming, ofc, one isn't into mixing texture primaries for their scenes.).

Alternatively, use "Zorb Modifier Modifier" to mass-change all V-Ray bitmaps and colors.

[Mr.Mxyzptlk]

Thank you LeLe I will give this a try.

[Mr.Mxyzptlk]

The attached will change all the vraybtimap and all the vraycolor textures that belong to a shader to sRGB or ACEScg primaries.
No change to the color space transfer function will take place, so your original gamma settings will be respected, and there shouldn't be any issue with data versus color channels (assuming, ofc, one isn't into mixing texture primaries for their scenes.).

Alternatively, use "Zorb Modifier Modifier" to mass-change all V-Ray bitmaps and colors.

I purchased MographPlus VRay course some time ago. He mentioned that Data Maps (non color) should have RGB color space parameters set to RAW then Normal Maps Color space transfer function set to None and RGB color space parameters set to RAW as well.

So is he not teaching this part correctly? Excuse my ignorance.

[^Lele^]

The role of a texture shouldn't matter to color primaries, no.
Normally, data maps are saved with sRGB primaries and a gamma of 1.0, instead of the sRGB CSTF matrix (or similar gamma 2.2), that's all.
Similarly, you can encode a data texture with ACEScg primaries, linearly, and set the role to data (or gamma to 1.0/raw).

[Mr.Mxyzptlk]

Thank you for the clarification!

[Vizioen]

Yes, it seems to convert only the "current" texture. You can solve this by ticking the "Convert All scene Objects' Bitmap texmaps to VRayBitmap texmap" option in the V-Ray Bitmap to VRayBitmap converter.

My god, really, I struggled with this. Even contacted the guy to support VrayBitmap but never received an answer. Never thought of checking that box. But what does it do exactly, doesn't the converter convert all bitmaps anyway?

[hermit.crab]

My god, really, I struggled with this. Even contacted the guy to support VrayBitmap but never received an answer. Never thought of checking that box. But what does it do exactly, doesn't the converter convert all bitmaps anyway?

Check the docs.

[Vizioen]

So the docs say that it should've converted even with it being disabled as it is part of a material.

Also I remember when converting back in the day, all the connections got lost to the multitexture, it just replaced the first one and all the rest wasn't connected (slate) So I guess that's solved.