Matthias Buehler

I've noticed that increasing the specular roughness for metallic materials behaves differently between Karma, VRay and Renderman. I'm posting here because I don't know which renderer is "wrong" exactly. Has anyone else noticed this behaviour?

In this screenshot, you can see that Karma stays roughly the same brightness, but VRay and Renderman get noticeably darker the higher the specular roughness.

Hi all, I'm having an issue with houdini 21.0.512. If I use the edit properties node to edit a primvar, it renders correctly in the scene view, but looks completely wrong in mplay. I also tested in houdini 20.5 and it works correctly there (scene view and mplay render the same). I've already submitted a bug report about, just posting here in case there was a change in workflow that I wasn't aware of between 20.5 and 21 that I'm not following correctly.

In the attached image I'm using the edit properties node to edit the dirt intensity on the building.

Hi! The space parameter for the viewdirection node seems to have no effect. It always return the view direction in world space. Are there plans to support this in the future? I am using Houdini 20.5.278.