VRayDisplacementMod and Real-World Scale

[3d-laboratory]

There is a 11years old topic to the same subject, so I hope there are solutions inbetween. I bought some pavement materials from the cgtrader platform. The textures have no real-world scaling. But I prefer real-world scale materials. So I changed all textures to real world scale, but there seems to be no way for real-world settings for the displacement map of the VRayDisplacementMod. How can I achive this. In connection to this: the height maps which came with the pavment collection are uncompressed TIFFs. Are there some disadvantages if I commpress it (LZW) or sonvert it to JPGs? Want to save some disk space, the TIFFs are 100-300 MB in size and tests shows, that I get the same renderings.

[hermit.crab]

But I prefer real-world scale materials. So I changed all textures to real world scale, but there seems to be no way for real-world settings for the displacement map of the VRayDisplacementMod. How can I achive this.

I think you need to project the map as such as well. Add a UVW Map modifier with the "Real-World Map Size" option enabled. If it messes up with your other textures, simply switch the Map channel.

In connection to this: the height maps which came with the pavment collection are uncompressed TIFFs. Are there some disadvantages if I commpress it (LZW) or sonvert it to JPGs? Want to save some disk space, the TIFFs are 100-300 MB in size and tests shows, that I get the same renderings.

I guess there would be some loss in quality (.jpgs are 8-bit; tiffs can be 16 or 32-bit, meaning more shades of grey), but since you've tested it and the results look good, it should be okay.

[3d-laboratory]

Thank you very much!

[Vizioen]

I would strongly discourage the usage of real world map scale especially when using displacement, because you need to use 3D displacement instead of 2D displacement, which is a heck of a lot slower and heavier to render. Unless you really need 3D displacement for some reason.

[3d-laboratory]

Thank you for the comment. I understand your remarks regarding the displacement. But besides the use displacement, what other disadvantages regarding the use of real-world scale do you know? I use it for years and it is very convenient for me. I have a lot of materials which needs correct measures, bricks or floor tiles and so on. As I use the Kstudio Project Manager I can simply apply the the materials with the stored modifiers to objects in the scene. But as I do so I could also do it without real-world scale.