PBR material sheen has changed in latest babylon 8.9.0 version

Questions
1

Hi,
In our current project, after updating to Babylon v8.9.0 from v8.6.1 we have noticed that in all the models we had with the “sheen” property configured in the PBR material, the sheen effect is now not visible.

In this PG you can check the difference if you change from babylon 8.9.0 to 7.x: (in Babylon 8.9.0, the visual appearence with and without sheen looks almost the same)

Babylon 8.9.0

image
image454×556 26.2 KB

Babylon 7.54.2

image
image534×559 37.3 KB

I’m not sure if this is a bug or if the shader has been changed for some visual/technical reasons.

2

cc @Evgeni_Popov @sebavan

1 Like
3

It is a bug fix for the lighting in PBR, the way to go fully back pre 8 is by disabling the bug fix behavior:

4

Actually, we do have a bug, this PR will fix it:

3 Likes
5

ohhhhh thanks a ton

6

Thanks a lot for your quick response!