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Question by Smasham · Jun 28, 2019 at 01:04 PM · physicsmeshmeshcolliderchunkcheckbox

Physics.CheckSphere isn't working well

I try to use Physics.CheckSphere to check if a coordonate is empty. I use three for loop to cycle threw a 2 x Y x 2 chunk. The problem is that it return true if the corner is touching the coordonate and its actually not even touching it, since I use a 0.5 sphere radius:

   if(Physics.CheckSphere(new Vector3(x,y,z), 0.5f) == false)...![alt text][1]

(by the way the white cubes you can see on the picture is only to visualize where it detected empty space, they dont have any collider enabled)

and the chunks have a mesh collider, so why is it returning true when its no even touching it ?

if(Input.GetKeyDown("i")) {

 for(int y = 0; y <= amp + 3; y++)
 {
     for(int x = 0; x <= chunkSize - 1; x++)
     {
         for(int z = 0; z <= chunkSize - 1; z++)
         {
             if(Physics.CheckSphere(new Vector3(Mathf.Round(x),Mathf.Round(y),Mathf.Round(z)),0.5f) == false)
             {
                 Instantiate(grass,new Vector3(x,y,z), Quaternion.identity);
                 dontPlaceHere.Add(new Vector3(x,y,z));
             }
         }
     }
 }
 }



mesh

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