I'm wondering if there's a way (In Houdini, or even as a base Octane feature) to have objects *only* visible to primary camera rays.
There's currently the option to make objects invisible to the camera (aka "phantom", invisible to primary rays), or invisible to shadow rays (one specific form of secondary ray), but I can't see any way to make it invisible to secondary reflections/diffuse-bounces/etc.
For my purposes, just an equivalent of Houdini's "Visible only to primary rays" would be fine, but it'd be nice to have the options to switch each specific type of secondary ray visibility individually.
GeForce 1080 Ti | i7 5960X | 128GB
Houdini | Windows 10