stuff

shaders/ImageBox.frag

@@ -12,7 +12,6 @@ uniform vec2 pixelScale;
 uniform vec2 pixelPos;
 
 uniform vec4 Color = {0.0f,0.0f,0.0f,1.0f};
-uniform vec4 BackgroundColor = {0.0f,0.0f,0.0f,1.0f};
 
 uniform sampler2D tex;
 
@@ -29,10 +28,11 @@ void main()
         vec2 absrelcoord = abs(fragPosTopLeft - pixelScale/2 - pixelPos);
     
         if (!(absrelcoord.x < r1.x || absrelcoord.y < r1.y)) {
-            if (pow(absrelcoord.y-r1.y,2) > pow(roundingfactor,2) - pow((absrelcoord.x-r1.x),2)) {
+            vec2 cornerOffset = absrelcoord - r1;
+            if (dot(cornerOffset, cornerOffset) > roundingfactor * roundingfactor) {
                 discard;
+            }
         }
     }
-    }
     
 }