I’m fairly new to Blender and modeling in general, and I’m running into trouble with running simulations (smoke, fire, liquid, etc). I’m trying to produce simulations to be used in a projection mapping project.

I’ve set up a smoke domain around a model I’ve made from an architectural drawing of a wall. The goal is to place emitters in the wall, and have the wall contain the smoke. I’ve set the wall to be a collision object, however, the smoke seems to ignore the wall entirely, filling up the entire domain containing the wall. This problem also occurs when I attempt a fluid simulation as well.

I’m coming up blank with explanations for this, and wondering if I have produce the actual model itself in an incompatible way. I am able to set up working simulations with basic spheres/etc with the same methods. Am I missing something? File below:


Screenshot from Blender

  • 1
    $\begingroup$ Did You try to make the wall a DOMAIN? On the other hand when the collision object has to keep something INSIDE the operation of FLIP NORMALS is necessary for Blender to know the inside part it crucial - try it. But for sure try to make the wall a domain 1st. $\endgroup$ – Jan Matys Oct 24 '18 at 2:34
  • $\begingroup$ Any progress with changed domain? $\endgroup$ – Jan Matys Oct 24 '18 at 15:24
  • $\begingroup$ It seems the domain wasn’t the issue. We’ve resolved it somewhat and I’m about to write up an answer regarding the problem. Our model had n-gons that seemed to be messing up the simulation $\endgroup$ – Softjock Oct 24 '18 at 22:18
  • $\begingroup$ OK, I just tried to use your file and make the wall a domain and everything looks to work well but maybe it was not the desired result for You. $\endgroup$ – Jan Matys Oct 25 '18 at 2:25

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