I have an object falling to the ground and breaking into pieces, but my plane, which is a passive rigid body, allows many pieces to pass through it:
Why is this happening and how can I fix it?
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asked Jul 4, 2017 at 9:20
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3 Answers
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Planes are notoriously bad objects to use as solid collision objects. I would suggest to use a cube, with a cube bounding box.
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$\begingroup$ Agreed. Pop a very subtle solidify on there and see if you get better results. $\endgroup$– AndrewCommented Jul 4, 2017 at 9:47
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$\begingroup$ How to make a Cube with A Cube bounding box ? $\endgroup$ Commented Jul 4, 2017 at 10:00
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$\begingroup$ Switch "Shape" from Rigid Body Options from Mesh to Box $\endgroup$– AdamTMCommented Jul 4, 2017 at 10:26
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You can add a collision margin on the plane (the passive rigid body).
Also, increasing the number of simulation steps per frame from the rigid body properties panel in Scene properties tab will give you better results.
answered Jul 4, 2017 at 13:15
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1$\begingroup$ Increasing the number of steps did the trick (for a box), thanks! $\endgroup$ Commented Aug 11, 2019 at 12:18
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$\begingroup$ I encountered this in blender 3.2.2. The settings have moved to Properties > Scene tab > Rigid Body World > "Substeps per frame" and "Solver Iterations". For my usecase I had to increase them to 15 and 150 respectively to get clipping down to an acceptable level. $\endgroup$– PLATOCommented Aug 20, 2022 at 18:07
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$\begingroup$ @PLATO where the heck is this option?!?! Could you please share a screenshot? $\endgroup$– mevsmeCommented Nov 18, 2022 at 20:54
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In the Rigid settings pannel, if you are using a plane or a cube, change the default Convex Hull in Collisions shape to box, so it simulates the collision of a cube
