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found a very cool way to make nice rocks https://www.youtube.com/watch?v=t0XQVS1qxZI here a guy uses 3dmax with displacement with cellular map. tried using voronoi in such a way, but i get wrong results. don't know what am i doing wrong here. enter image description here

Please advice how to achieve this:

enter image description here

is it even possible to do in blender?

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It sure is possible. I made a similar rock in a few minutes. You can check my settings from the image.

rocks from displacement

You can do this with one displacement map but for some reason I got better results with two. Put them underneath a subdivision surface modifier, and the displacement modifiers should have their strength reduced to the same number (.3-.5). The realism of the rocks comes from playing with the voronoi texture settings: size, and distance metric were most important. I found distance squared worked best. Also the color ramp can help level off any circular spots in the texture.

Hope that helps. Good luck!

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  • $\begingroup$ thank you! i understood my mistake! i was making the rock from already subdivided icosphere! and this method need low-res icosphere (howhere in video it seems to me that he uses a very smooth one) $\endgroup$ Commented Feb 23, 2016 at 16:40
  • $\begingroup$ My pleasure. Glad you figured it out! $\endgroup$
    – HowToBlend
    Commented Feb 23, 2016 at 18:46

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