enter image description hereI am having a problem with my render layers. For clear illustration, I created a plane and a box. The box is partly beneath the plane. The plane is on my first render layer and the box on the second. Now when I render, the part of the box that is below the plane is shown in black.

I know that the black part of the box is below the plane, but is there a way to cut this part from the image or even exclude it from the rendering?

I hope someone can help me.


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  • $\begingroup$ What do your composition nodes look like? $\endgroup$
    – Tsimp. Dim
    Commented May 21, 2017 at 9:57
  • $\begingroup$ hi, you should perhaps share some info (or images) of relevant node setuo/render settings... $\endgroup$
    – m.ardito
    Commented May 21, 2017 at 10:39
  • $\begingroup$ I added the node setup. $\endgroup$ Commented May 22, 2017 at 8:28

1 Answer 1

  • Option 01 - for Cube Render Layer mark Floor Render Layer as Mask Layer

enter image description here enter image description here

  • Option 02 - use Z-Combine node to merge them together

enter image description here enter image description here

Notes: It is good to understand what happened in 2.8x versions ...

  • Render Layers are almost the same concept
  • Layers are in 2.8 represented by Collections. Now you are not selecting Collections to be rendered, but you mark collections you want to participate only indirectly - objects are not rendered directly, only indirectly by their shadow or light bounce
  • Mask Layers are the same concept in therm of just activating collection in outliner

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