C4D Render Mask

[liquidambarcake]

Hi there,
Sometimes I use a Foreground object with a mask texture to mask out certain areas at rendertime. This works perfectly in de Cinema native renderer, However, I can't seem to find a similar function in Octane. Is this at all possible? I've tried to convert the material to an Octane material, but that doesn't work.

Any suggestions are welcome!

[bepeg4d]

Hi,
no, in Octane there is not a Foreground option like C4D.
A workaround is to create a plane that fits to the FOV of the camera, but it could be a bit tricky because of the DOF
Before that the Render Region option was available, I have used this trick a lot for cutting render times.
ciao beppe

[bubimude]

There is an option to turn any material into a "matte". Its a checkbox right above smooth. If you applied this to a plane or sphere, and then used the opacity channel to define which areas to cut out, this might work.