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Hello, I can't figure out how can I reference houdini attributes in the octane vopnet. I see there are two nodes called "Color Vertex Attribute" and "Float Vertex Attribute" but I don't know how to use them or reference the attribute I want. I can't find anything about them in the documentation either.

Hi,

You have a brief introduction in this topic, including an example scene:
viewtopic.php?f=102&t=71789&p=365199&hi ... es#p365199

In short: You need to set in the Octane OBJ spare parameters the attributes that you want to expose in the shader, and use the two VOP nodes that you have found to get these attributes in the shader.

Hope it helps,
-Juanjo

It really helped. Thank you very much. I was working with a scene saved on a previous version of octane and the subtab "attributes" didn't appear under the octane tab of the geometry node. I had to delete the tab and load it again.