Unity 3D骰子滚动问题求助：骰子无限坠落未落在棋盘（非代码问题）

Hey there! Since you’ve already ruled out code as the culprit, let’s focus on the Unity settings that are likely causing your dice to keep falling forever instead of landing on the board. Here are the most common issues and how to fix them:

• Collider Configuration Issues

  • First, confirm both your dice and the board have active collider components. For the dice, use a Mesh Collider (enable the Convex checkbox if it’s a complex 3D shape) or a compound collider made of primitive colliders (like Sphere Collider or Box Collider parts). The board should have a Box Collider or non-convex Mesh Collider attached.
  • Double-check that neither collider has the Is Trigger option enabled—triggers don’t block physics objects, so the dice will pass right through the board if this is checked on either object.

• Rigidbody Settings Misconfiguration

  • Your dice needs a Rigidbody component to interact with physics. Make sure the Use Gravity toggle is turned on (it’s enabled by default, but it’s easy to accidentally uncheck it).
  • Ensure the rigidbody isn’t set to Kinematic—kinematic rigidbodies ignore all physics interactions, so if this is checked, gravity won’t affect the dice (though this usually stops movement entirely, it’s worth verifying).
  • Keep the dice’s Mass set to a reasonable value (e.g., 1-5 for a standard dice)—extremely low mass can cause unstable physics behavior in some cases.

• Layer Collision Matrix Mismatch

  • Head to Edit > Project Settings > Physics (or Physics 2D if you’re working in 2D) and look at the Layer Collision Matrix.
  • Make sure the layer assigned to your dice is set to collide with the layer assigned to your board. If the checkbox at the intersection of these two layers is unchecked, Unity won’t register any collision between them.

• Position and Physics Bounds Checks

  • Verify the dice is spawning above the board, not below it or far outside the board’s area. If it’s spawned way off, it might take ages to reach the board (or never reach it if the board is positioned incorrectly).
  • For 3D projects, check the Default Contact Offset in Physics Settings—if this value is too low, tiny gaps between the dice and board colliders can prevent collisions. Try increasing it slightly (from 0.01 to 0.05, for example) to see if that resolves the issue.

• Parent Object Interferences

  • If your dice is a child of another GameObject, make sure the parent doesn’t have a Rigidbody component. Having a rigidbody on a parent can override the child’s physics behavior, leading to unexpected movement (or lack of collision detection).

If none of these fixes work, sharing screenshots of your dice/board Inspector panels (showing collider, rigidbody, and layer settings) would help narrow down the problem further!

内容的提问来源于stack exchange，提问作者As Ma Rezgui