4

Are there any techniques or tools in Blender to help make an image like this?

enter image description here

There are a few things in this image that I'm specifically interested in:

  1. size: big objects at the top, small objects at the bottom
  2. density: distribution is less dense near the middle-bottom
  3. packing: there are small stones packed amongst the big stones at the top
  4. collision: there doesn't appear to be any stone/stone overlaps
ajwood
  • 10,063
  • 11
  • 60
  • 112

2 Answers2

2

Disclaimer: This is not a true way of sorting by size, just a way of faking it by scaling objects.

enter image description here

This works by using a vertex group to affect the particle size and density, simply create a gradient to affect particle size as desired

Start by creating a circular mesh, a cobweb like topology will likely help.

enter image description here

Add a new vertex group and use Weight Paint mode to paint in in a gradient shape to your liking.

enter image description here

Create new particle system set to Hair type, and use the previously created Vertex Group to drive both its Density and Length parameters.

enter image description here

enter image description here

Duarte Farrajota Ramos
  • 59,425
  • 39
  • 130
  • 187
  • One of the things I really like about the reference image I posted is how there are small objects packed around the large objects to make for a really dense layout, without having any object overlap. Is there any way to achieve that with this method? – ajwood Jul 30 '17 at 22:54
  • Not directly no, but you could convert the particles into real objects afterwards, add rigid body properties then drop them with a physics simulation. That should make a non intersecting distribution roughly respecting the already obtained gradient. This may help https://blender.stackexchange.com/questions/80690/random-sized-cylinders-with-no-intersection-gaps/80721#80721 – Duarte Farrajota Ramos Jul 30 '17 at 23:12
-2
  • 2 or More Particle Systems emitted from a circular mesh.
  • 2 or More Physics Systems Baked
  • Image compositing
atomicbezierslinger
  • 14,279
  • 28
  • 42