- mediump vec2 diff = abs( vPosition ) - vRectSize;
- mediump float dist = length( max( diff, vec2( 0.0 ) ) ) - vCornerRadius;
- if( dist > 1.0 )
+ if(abs(vPosition.x) < vOptRectSize.x && abs(vPosition.y) < vOptRectSize.y)
+ {
+ return;
+ }
+ mediump float radius =
+ mix(
+ mix(vCornerRadius.x, vCornerRadius.y, sign(vPosition.x) * 0.5 + 0.5),
+ mix(vCornerRadius.w, vCornerRadius.z, sign(vPosition.x) * 0.5 + 0.5),
+ sign(vPosition.y) * 0.5 + 0.5
+ );
+
+ mediump vec2 diff = abs(vPosition) - vRectSize + radius;
+ mediump float dist = length(max(diff, vec2(0.0))) - radius;
+ if(dist > 1.0)