I'm a student looking at microstructures of foods. I created an 'emulsion', but the droplets 'go through' each other. See image. enter image description here The image shows a rendered slice of a box filled with balls (after simulation). This slice is very thin (0.02 in BU), so the overlap is not caused by different depth of the balls.

Does anyone know how to solve this? The balls are rigid bodies in a particle system.


Rigid Body and collision settings for the 'source' object for the particles system: enter image description here

(Collision shape is convex hull). Substeps:

enter image description here

Collision shape is set to sphere. Increasing steps/s causes no difference. Result: enter image description here

The spheres go less deep through each other, but the problem is still there. If anyone has a suggestion...?

The bounciness of the spheres during animation are quite high, although these are Rigid Bodies. During animation: enter image description here

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    $\begingroup$ Give us your rigid body settings - what collision shape you use, and your solver settings (how many steps/s and iterations does it use). $\endgroup$ Commented May 31, 2018 at 9:51
  • $\begingroup$ Related The choice of the BU size is arbitrary, and can be converted to a length unit using the scene unit scale settings. Using such small sizes could I believe, lead to precision errors. If the height of the slice above is 0.02 then your smallest droplets are 0.001 or less. Have you tried using a bigger size? maybe 2 bu for the slice, and droplet sizes scaled accordingly. $\endgroup$
    – batFINGER
    Commented May 31, 2018 at 10:23
  • $\begingroup$ I've already tried bigger sizes. But also without cross-section it is already visible that the spheres go through each other. $\endgroup$
    – Jantine
    Commented May 31, 2018 at 11:28
  • $\begingroup$ Where can I find the solver settings? (which tab/panel?) $\endgroup$
    – Jantine
    Commented May 31, 2018 at 11:29
  • $\begingroup$ @Jan I guess Jerry means the Rigid Body World which is Found in Properties Panel > Scene $\endgroup$
    – Leander
    Commented May 31, 2018 at 11:54


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