Bump Maps Created with Substance Cause Materials to Render Extremely Dark (almost black)

Enscape Requests, Issues, Discussions Enscape :: Issues
1

I’m seeing an issue with materials that are created using Substance Sampler where the bump map causes the material to render almost black and I have no idea why or how to fix it, other than not using those bumps. In the attached image & files there 4 examples:

  • First is the material as created by Substance.
  • Second is the same material but setting the height map to Normal instead of height.
  • Third is the same material, but using the BaseColor to create a bump map in Photoshop (this feature is disappearing btw)
  • Fourth is an OOTB Autodesk PBR brick material

All materials are created by duplicating the Autodesk brick material, then modifying the images. From what I can remember, this happens even with a Generic material as a starting point.

This seems to happen across the board with all bumps created with Substance (I have not tested every map I have, but it is very common) and has been present in at least the last 2 versions of Enscape I have installed.

Revit 2020-2023

Enscape 3.4.1+85781

3070 TI- drivers were updated yesterday

Enscape_PBR Material Issue.jpg
Enscape_PBR Material Issue.jpg1920×1080 220 KB

Brick-Bourbon Trail.zip (9.54 MB)
Enscape-MaterialBumpIssue.zip (1.44 MB)

2

I am having the exact same issue! Every time I use the height map my materials are rendering completely black as if the light cant seem to render it correctly???

3

Hello everyone! I have looked at the project and I confirm that there is a problem on our side. Inspecting the height texture, Windows Explorer properties say that the bit depth is 16 and we have a problem detecting that for monochrome images. I have created a ticket for it internally.

I believe that If you can change a setting in Substance to export the height maps in 8 bit depth, it will work around the problem for now.

4

Thanks for the update!

5

Thank you so much for the update! I will try your suggestion! Thank you Ilians!!!

6

For anyone running into this, the bit depth is locked to 16 bit for Height channels:

To change to 8 bit you will need to modify the image in Photoshop / Paint.net / etc. Once set to 8 bit they render correctly.

2022-10-13 10_29_42-Window.png
2022-10-13 10_29_42-Window.png382×485 11.7 KB

7

Hello everyone. There is a high possibility for the fix to be included in the next preview version. Keep in mind, though, that the preview might have other problems introduced due to new features.