Layermask doesn't ignore layers

Question

I am trying to make a Raycast only collide with objects on the "template" layer, but no matter what I try the ray detects collisions on the default layer too.

 void RenderTemplate() //Renders building template
 {
     int mask = (1 << LayerMask.NameToLayer("template"));
     RaycastHit templatehit;
     Physics.Raycast(MouseRay, out templatehit, mask);
     template.SetActive(true);
     template.transform.position = Vector3.ProjectOnPlane(templatehit.point, Vector3.up) - Vector3.up * 1.5f;
 }

Why doesn't this work?

Answer 1

Best Answer

Answer by Cornelis-de-Jager · Mar 22, 2018 at 11:53 PM

Easy Solution:

 Physics.Raycast(MouseRay, out templatehit, Mathf.Infinity, mask);

The reason this happens is because the function you are trying to use is:

  Raycast(Vector3 origin, Vector3 direction, out RaycastHit hitInfo, float maxDistance = Mathf.Infinity, int layerMask = DefaultRaycastLayers)

Remember the mask is an Integer, meaning it can be used as the maxDistance variable. Since the maxDistance variable is infact before the mask layer, C# interperates it as the max distance instead of the Mask Layer.

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Arisstephenson · Mar 23, 2018 at 12:37 AM 0

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Thank you! I didn't even think about that.

Layermask doesn't ignore layers

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