dice not touching surfaces

posted to: Dice Animation

i changed shape to mesh but my dice seem float of off the floor. They land right above it.

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Reply
  • Martin Bergwerf replied

    Hi Mario rioville ,

    I'd look at the Sensitivity Margin of your dice (default is 0.04m, I think):

    Margin.png

    I wouldn't set it to completely 0, but 0.001m should be fine.

    1 love
  • Mario Anderson(rioville) replied

    ok had rewatched the vid and seen i missed that part lol. but i do have another issue. seems some of the die clip through the floor. 

    1 love
  • Omar Domenech replied

    When they clip, Kent gives the floor some thickness to avoid that.

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  • Mario Anderson(rioville) replied
    Thanks, I have that though. Seems slowing down the rigid sim speed did the trick. I had turned it back to 1 when testing the floor issue and never went back down to .05.
    • 🤘🏼
    1 love
  • Martin Bergwerf replied

    You can also increase the Substeps (calculations in between Frames) and maybe also increase the iterations:

    RigidBody.png

    ...and next week, you can learn how to do this with Simulation Nodes 🥳

    1 love
  • Nathi Tappan(nathitappan) replied

    Did you figure out what happened? I'm running into the same issue.

    This is the first time I ever touch rigid body sims, so I'm certain I'm missing something.

    Still, with the amount of dice I have it works and I can move on, but you can see the highlighted die starts "floating", but shoots up from the very next frame. Who doesn't love an explosion of dice? But if you find out what it was let me know, I'm sure it'll be handy to be fixed when my camera is not 115mm! Lol.

    9 at 10.03.24 PM.png

    9 at 10.04.02 PM.png

    ps. I went over Omar and Martin's suggestions, but that didn't quite do it yet.

    1 love
  • Martin Bergwerf replied

    Hi Nathalia nathitappan ,

    There is always a lot that can go wrong in Simulations..I can't say what exactly is causing this...I don't have enough experience with Rigid Body Sims...mostly I just tweak the Settings, one by one, until it behaves as I want...Some thing that may or may not help:

    Make sure the Scale of your Dice is Applied (but not their Rotation, if you are using Convex Hull) and their Size is correct (compared to their Mass).

    You can also try using Mesh for all your Dice...

    In your Scene > Rigid Body World Settings, maybe try enabling Split Implulse (if everything else fails...)

    2 loves
  • Omar Domenech replied

    Also try clearing your cache, that is helpful most of the time.

    2 loves
  • Nathi Tappan(nathitappan) replied

    Thank you guys! I have tested with the tips but I still get the dice explosion... I'll finish through with this simulation and later when I get to the Rigid Body dedicated course I might revisit. 


    This looks so much fun! In After Effects there would be so much keyframing to get the same result I can't wait to explore more in the subject! And it sounds like a new course coming on it too? Sweet!



    1 love
  • Omar Domenech replied
    Maybe try moving your dice around to new positions, ones that would make it easier for Blender to simulate.
    2 loves