Switched to shader for corner rounding

src/shaders/mod.rs

@@ -27,15 +27,30 @@ pub mod frag_color {
 
             layout (set = 0, binding = 0) uniform ColorBlock {
                 uniform vec4 in_color;
+                uniform vec2 corner_radius;
             };
 
             void main()
             {
+                out_color.r = corner_radius.r;
                 out_color = in_color;
+
+                vec2 uv_circ = ((1. - corner_radius) - (abs(in_uv + vec2(-0.5)) * 2.))/corner_radius;
+                float dist = length(uv_circ);
+
+                out_color.a = mix(out_color.a, 0.,
+                        float(dist > 1.)
+                        * float(uv_circ.x < 0.)
+                        * float(uv_circ.y < 0.));
             }
         ",
     }
 }
+            //layout (location = 1) in float corner_radius;
+                //out_color = in_color;
+                // Some equation that determines whether to keep the pixel
+                // Use Lerp not if
+                //out_color.a = 0;
 
 pub mod frag_glyph {
     vulkano_shaders::shader! {