Easier way to do displacement/bumps to a mesh

Support Basics & Interface
1

What might be the easiest way to add displacement/bumps from noise texture node into a mesh using geometry nodes?

Currenly I have done this basically like this:

  • take a noise value (Noise Texture)
  • scale the object normal with the noise value (Normal and Vector Math)
  • add the scaled normal to the position value (ie. create the displacement) (Position and Vector Math)
  • feed the result to Set Postion node

It all works just fine and I get what I want. But feels a bit cumbersome. Is there some kind of height property I could directly transform instead of having to deal with both the position and normal values?

2

This is how it looks in 3.1 alpha using the “offset” in the set position node. Pretty concise, if you ask me.

image
image1711Ă—1444 79.2 KB

Edit: Compare it to the displacement modifier, there you basically have all the same settings, too.

Edit edit: And, you can always put the Normal, Set Position, and the two scale nodes into a group to re-use later, and call it “modify height”.

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3

Oooh! So I can feed the scaled normal straight into Offset! That is exactly what I wanted. And now that I think of it…of course it works. Now I can get rid of the Position and one Vector Math node I thought I needed. So now the original list is:

  • take a noise value (Noise Texture)
  • scale the object normal with the noise value (Normal and Vector Math)
  • feed the result to Set Postion node’s Offset

Awesome, thanks, problem solved!

1 Like