Go to select polygons -mode and select this polygon. For example create Plane -object, change rubdivisions to 1 in x and y dimensons and convert it to a polygon object (hit C on keyboard). Instead of rendering whole image just to check if everything is ok would be too time consuming, since every render took about 2 hours, so I ended up making this little mask which helped. For viewport usage there is this handy tool "Render Region" which is nice but with it I can only render low resolution version and to a modeling viewport only, not to a renderview or to a file. While I was rendering quite huge image (3636 x 2657) for Master & Servant challenge I found out that I wanted to render just a portion of image to verify if polycount is smooth enough in particular areas. Jorge Luis Borges,Un Poeta Menor,Oro De LosĪttached Link: all! This may be an old thing, but have to say I haven't seen it mentioned before. (unaware, of course that the multi-layer image was being rendered, but I wasn't seeing it. What I would see is that nothing was rendering. Depending on the existance of objects in the foreground and the DOF settings, sometimes the depth map would be 100% black.
![octane render c4d lite octane render c4d lite](https://i.pinimg.com/originals/92/f9/a6/92f9a66ad3e3d8894ee72251cc6f53d1.jpg)
![octane render c4d lite octane render c4d lite](https://eyedesyn.com/wp-content/uploads/2017/03/switch_hd.jpg)
I used to check my depth map while rendering, out of curiousity, and then deciding what I was working on was 100% trash, I'd simply delete most of the stuff I'd been working on, set up a different scene, using the same file as a template, forgetting entirely that the picture viewer was still set to display the depth map. Here goes: If you've been doing any multi-pass renderings, i.e., like me, creating a matching, along with the normal color image, a depth map for later use in DOFpro, be sure you've returned the "channels" settings on the picture viewer set to "multi-layer display" and "red" "green" and "blue" checked on the "components" settings. started paying some attention to what I was doing. I'm not sure if this will help any, but it's a simple problem I occasionally ran into when I first began to use Cinema 4D, years ago.