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Question by wonwoon · Jul 12, 2017 at 01:33 PM · 3dgameroll a ball

Ball goes through the wall

I have made a rolling ball game by following the Unity tutorial. On top of that, I made a joystick that lets you control the ball in a smartphone. Now, I've also added the feature of the ball increasing in speed whenever it hits a yellow cube. The problem is that when the speed increases the ball goes through the wall... Does anyone know how to solve this?

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Answer by dardamavet · Jul 12, 2017 at 02:03 PM

If an object moves too fast it can move through a collider on one FixedUpdate call, so the collision is not detected.

You can try:

  • Decrease the value of Fixed Timestemp in Edit>Project Settings>Time. that will have performance cost.

  • Make the colliders bigger

  • Add upper limit to the speed of the ball

  • Verify via script if the ball is outside of the walls bounds

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Answer by Jwizard93 · Jul 12, 2017 at 05:12 PM

Have you tried to set the collision detection on the ball to ContinuousDynamic?

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