I am trying to render a terrain using Digital Elevation Model. During my render I am getting blacks spots/triangles in my render. I tried recalculating normals, applying subdivision modifier, shade smooth etc. But still I am getting black spots

The portion of my render screenshot attached,

enter image description here

  • $\begingroup$ maybe go in the Object Data > Geometry > and Clear Custom Split Normals Data? $\endgroup$
    – moonboots
    Aug 11, 2021 at 11:06
  • $\begingroup$ Have you decimated your geometry? $\endgroup$
    – James
    Aug 11, 2021 at 11:07
  • $\begingroup$ I am very basic blender user $\endgroup$ Aug 11, 2021 at 11:19
  • $\begingroup$ In the current work custom split normals data is not added $\endgroup$ Aug 11, 2021 at 11:34
  • $\begingroup$ I tried decimate modifier but no use. $\endgroup$ Aug 11, 2021 at 11:52

1 Answer 1


Just add a subdivision modifier to your plane like this:

enter image description here

and you get:

enter image description here

  • $\begingroup$ I had earlier applied a subdivision modifier. So is my earlier intensity was less to resolve the issue? $\endgroup$ Aug 11, 2021 at 15:46
  • $\begingroup$ Looks like …when I added the subsurf the problem was gone $\endgroup$
    – Chris
    Aug 11, 2021 at 15:47

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