I built a Material that displaces a Plane with a Noise-Texture. Then I take the Normals form the faces and dependend on that the Material sets an Image-Texture (gras on the flater parts or rock on the steeper parts). For that desicion I use a Normal-Node compared with a Color-Ramp-Node. I plan to use a particle system for planting gras and trees. Is it possible to use that Material to define where the particles are alowed and where not?

  • $\begingroup$ Please elaborate on the first sentence it's hard to understand. $\endgroup$
    – Yohello 1
    Commented Oct 31, 2019 at 16:02
  • $\begingroup$ Thanks for the advice. I hope now it's more understandable. $\endgroup$
    – Haissem55
    Commented Nov 3, 2019 at 7:07
  • $\begingroup$ You could use weight painting but I don't think there is a easy and straight forward way to do it. $\endgroup$
    – Yohello 1
    Commented Nov 3, 2019 at 19:27
  • $\begingroup$ Would it be possible to save the material output as an img and use that img as particle wieght texture? So I would have to refresh it manualy every time I change somthing, but still it would save a lot of time and be accurate. $\endgroup$
    – Haissem55
    Commented Nov 4, 2019 at 16:28
  • $\begingroup$ In theory you could not sure how though. $\endgroup$
    – Yohello 1
    Commented Nov 5, 2019 at 1:38


You must log in to answer this question.

Browse other questions tagged .