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I created a plane, subdivided and decimated it. After that I edge split the plane to create multiple triangle. To give them a 3rd dimension solidify was used. When I now want to animate the triangles falling down on a rigid plane, everything works fine so far except that the triangles fall into each other. Is there a way to prevent this? I played around with self collision but nothing I did helped. Do you have any tips? enter image description here

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Since you are using a single object, you have to enable Self Collision to allow parts of itself to collide with itself.

self collision setting

However, you will need a lot of accuracy and samples. The situation of many rigid pieces would be better suited with a Rigid Body Simulation.

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  • $\begingroup$ Thanks for you answer. Can you elaborate accuracy and samples? Where do I find these settings? I just started using blender and some settings are confusing. What is actually doing the physics simulation? Is it the render engine? If I used rigid body simulation I would need to seperate the plane in to parts. Is there a quick way to apply rigid body to all these parts in one go? $\endgroup$
    – herrwusel
    Aug 30, 2019 at 8:12

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