I am having problems when trying to add colliders to some custom hands. I am using the same hand model as in the example they have for the custom hands, and I simply want to add a collider to the hand, but when I test it, it is not working. I don’t know if I am doing something wrong
Hi boss15493,
To troubleshoot the collider issue with your custom hands in Needle Engine, ensure the following steps are followed:
Attach Colliders Properly:
Make sure you’ve correctly added the collider component to your custom hand model. Depending on the type of collider (BoxCollider or MeshCollider), you should use the appropriate method to add them.
Check Rigidbody Association:
Ensure that the collider is associated with a Rigidbody. If the collider is not attached to a Rigidbody, it might not interact properly with other colliders.
Collider Settings:
Review the collider’s properties, such as isTrigger, and confirm that they are set according to your requirements. You may want to toggle the isTrigger property to see if it affects the behavior.
Applying Scale:
Ensure that the collider scales are correctly applied, especially if the hand model has a non-uniform scale. This may affect how the physics engine calculates the collider boundaries.
Debugging:
Make use of debug tools to visualize your colliders to check if they are placed correctly within the hand model.
Physics World:
Ensure the physics world is initialized correctly and that all objects are included in it. If the physics engine is not aware of your collider, it won’t function.
Here is an example code to help you add a BoxCollider to your hand model (assuming you have a reference to the hand mesh):
import { BoxCollider } from "@needle-tools/engine";
const handMesh = ... // Your hand mesh reference
const boxCollider = new BoxCollider();
// Setting size and center if necessary
boxCollider.size.set(1, 1, 1); // Set to your desired size
boxCollider.center.set(0, 0, 0); // Adjust as needed
handMesh.addComponent(boxCollider);
// Ensure you also have a Rigidbody if you're testing interactions
handMesh.addComponent(Rigidbody);
If the problem persists, additional context about the specific issue would help in diagnosing it better (e.g., error messages, the method used for adding the colliders).
For more resources:
Let me know how it goes!
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I was also trying to add a script to the custom hands, but that doesn’t work either. Is there a possibility of adding scripts and colliders to the hands?
