Revert back to optimized shaders

2 files changed, 7 insertions, 6 deletions

diff --git a/shaders/circle_mask.glsl b/shaders/circle_mask.glsl
index 61c87cb..367edbe 100644
--- a/shaders/circle_mask.glsl
+++ b/shaders/circle_mask.glsl
@@ -10,7 +10,7 @@ vec4 circle(vec2 uv, vec2 pos, float rad, vec4 color) {
 void main() {
     vec2 uv = gl_TexCoord[0].xy * resolution;
 	vec2 center = resolution * 0.5;
-	float radius = 0.49 * resolution.y;
+	float radius = 0.5 * resolution.y - 1;
 
     vec4 texture_color = texture2D(texture, gl_TexCoord[0].xy);
 	gl_FragColor = circle(uv, center, radius, texture_color);
diff --git a/shaders/rounded_rectangle.glsl b/shaders/rounded_rectangle.glsl
index 88a057a..d06a4ba 100644
--- a/shaders/rounded_rectangle.glsl
+++ b/shaders/rounded_rectangle.glsl
@@ -12,10 +12,11 @@ void main() {
     vec2 uv = gl_TexCoord[0].xy * resolution;
     vec2 center = resolution * 0.5;
     vec2 size = resolution * 0.5;
-    vec4 background_color = vec4(0.0, 0.0, 0.0, 0.0);
+
 	float a = clamp(rounded_rect(uv - center, size - radius, radius), 0.0, 1.0);
-    vec4 front_color = gl_Color;
-    if(uv.x >= band_pos.x && uv.x <= band_pos.x + band_size.x && uv.y >= band_pos.y && uv.y <= band_pos.y + band_size.y)
-        front_color = band_color;
-    gl_FragColor = mix(front_color, background_color, a);
+    // same as: if(uv.x >= band_pos.x && uv.x <= band_pos.x + band_size.x && uv.y >= band_pos.y && uv.y <= band_pos.y + band_size.y)
+    vec2 band_blend = step(band_pos, uv) - step(band_pos + band_size, uv);
+    vec4 front_color = mix(gl_Color, band_color, band_blend.x*band_blend.y);
+    front_color.a *= (1.0 - a);
+    gl_FragColor = front_color;
 }
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