Bug: CSM shadows do not render on vertical faces with a PBR texture applied

[Equalizer5118]

Describe the bug

When a CSM shadow is projected onto a vertical PBR material, the shadows do not render and instead use lightmaps. However, PBR materials that are horizontal do show CSM shadows, unless they were spawned vertically and then rotated. I am on the staging branch.

Images

LightmappedGeneric:

PBR:

PBR (horizontal)

PBR (spawned vertical, rotated):

To Reproduce

1. Open the given map
2. Observe bug

Issue Map

N/A, example map here: csmpbrbug.zip

Expected Behavior

CSM shadows should work correctly when at this angle

Operating System

Windows 11

[JJL772]

I think you map is missing assets?

"materials/pbr/walltile_64_mrao.vtf": can't be found on disk

[Equalizer5118]

did I not pack that file? whoops. Ill rebuild the map and properly pack it this time

[Equalizer5118]

PBR.zip @JJL772 here you go. Make sure the material is in materials/PBR

[JJL772]

Thank you! I will test when I get home.

[LambdaCore21]

prop_dynamic shadows are not displayed on all vertical PBR brush faces:

I have prepared a custom folder with the test files, PBR texture by distantjetlines

custom_dyn_shadows.zip

[LambdaCore21]

Different map, same problem:

custom_dyn_shadows_2.zip