Strange PBR/Substance Behavior in 2022.24200

[riebschlager]

Howdy! I’m running into a weird issue with Substance TOPs and PBR MATs in the latest release. The attached file works well in 2021.16410, but I’m seeing some weirdness in the latest build.

First off, it will render at a constant black unless I add the Attribute Create SOP to compute tangents.

It will also render constant black if I change the Sphere SOP to use NURBS as the Primitive Type.

When it does render, I’m getting that weird black hole at the pole of the sphere.

Screenshot and sample .toe attached. Thanks!

substance-pbr.toe (5.3 KB)

[matijaerceg]

Some related reading:

Checking Compute Tangents in Create Attribute makes the render of the SOP suddenly go pitch black

The Moment I click on Compute Tangents. The sphere in my render turns completely black. [Group 7] It’s still reacting to the music, but it’s gone completely black and I can’t figure out why

Bug: Attribute Create SOP renders black polygons with Geometries with normal mapping

When I apply an Attribute Create SOP to Calculate Tangents and feed that SOP to a Geometry that uses a Material that uses Normal Mapping, some or all of the faces go pitch black in the render. [image] I can understand this happening with weird imported models, but it happens even with fully native stuff like the Wireframe SOP. Attached is an example: attrib_bug.toe (4.3 KB) Things I tried that didn’t help: inverting normals changing the pixel format of the normal map top Win 10, 2021.15…

[zouwut]

If you mean the black hole at the top of the sphere,Just change the primitive type of sphere to polygon