Raycasting is not working in immersive mode as expected

Help & Support
#1

We are using pc.app.systems.rigidbody.raycastFirst() to retrieve the entity details for which collision component is added. It is working fine in web mode but in immersive mode , it is not detecting the collision entities always returing null. We have used the below code to get the raycast result

this.collisionEntity = pc.app.systems.rigidbody.raycastFirst(this.inputSource.getOrigin(), this.inputSource.getDirection());

So please guide us , how to get the ray cast result in immersive mode.
Thanks in advance.

#2

It’s possibly related to this issue:

and so the ray is perhaps incorrect.

1 Like
#3

Is this AR or VR?

#4

It is in VR

#5

Raycasting in physics should work.

However, raycastFirst takes a start point and an end point, not a start point and direction which is what you are currently doing:

https://developer.playcanvas.com/en/api/pc.RigidBodyComponentSystem.html#raycastFirst

1 Like
#6

Thanks for the reply.
Do you have any suggestions that what can we pass to raycastFirst in case VR mode. So far we are passing as like below
pc.app.systems.rigidbody.raycastFirst(this.inputSource.getOrigin(), this.inputSource.getDirection());
But as we understood we need to pass end point instead of direction , Can you suggest us what can we pass because as we checked that XRInputSource’s ray contains origin and direction , So we can’t identify what exactly we can pass in case of VR mode.

#7

You will need to project an end point based on the origin and the direction.

ie:

// Project the end point 10 units in the direction of the inputSource
var endPoint  = this.inputSource.getDirection().clone().scale(10);
endPoint.add(this.inputSource.getOrigin());
#8

Thanks for your guidance. It’s working fine now.