Physics.raycast with layermask doesn't work?

Unity Engine
1

hey - not sure if I’m doing this wrong but I cannot get a raycast to work with only a certain layermask
this my code

 if (Physics.Raycast(ray, out rayInfo, 1<<11))   { // hit object with mask 11 }

Though it will still hit everything! I have set the Layers on the objects that I want to test against… and I would have thought that even if I didn’t, then at least the raycast would return nothing? (nothing on that layer)

So why would that code above still return hits from anything and everything that has a collider on it?
Thanks!

2

Hm there doesn’t seem to be a Raycast function that matches those parameters. I think you might be passing your layermask as the distance instead… Unity - Scripting API: Physics.Raycast

I tend to avoid using bit shifting when working with layermasks though, and handle it via inspector properties instead.
This is in js, but you can get the idea!

var myMask : LayerMask;

if( Physics.Raycast(ray, rayHit, rayDistance, myMask) )
1 Like
3

hey Aniani - yep it was a facepalm moment where I wasn’t looking at what I was doing! …and I’ve setup the layermasks now to be inspector members!
thanks!

1 Like