Question by solocs · Aug 12, 2021 at 08:54 PM · raycast layermask texturecoord

Why do RaycastHit.textureCoord values only appear properly when a layer mask is used?

 //The textureCoords only output properly if a layermask is included in the //Raycast for some odd reason.
     
 var isHit = Physics.Raycast(ray, out var hit, 10.0f);
     
 if (isHit)
 {
             //raycastsgive you a texture coordinate
            Debug.Log("Texture coordinates: " + hit.textureCoord.x + "," + hit.textureCoord.y); 
 }

Quad is using "Default Layer" alt text
The result: https://i.imgur.com/0TXy2sf.gif

Now I add a layer mask:

 //the textureCoords only output properly if a layermask is included in the Raycast for some odd reason
 var isHit = Physics.Raycast(ray, out var hit, 10.0f, LayerMask.GetMask("HitLayer")); 
     
 if (isHit)
 {
            Debug.Log("Texture coordinates: " + hit.textureCoord.x + "," + hit.textureCoord.y);
 }

Quad now uses "HitLayer" alt text