1 files changed, 0 insertions, 83 deletions
diff --git a/glow/src/shader/compatibility/quad.frag b/glow/src/shader/compatibility/quad.frag
deleted file mode 100644
index bb9d8122..00000000
--- a/glow/src/shader/compatibility/quad.frag
+++ /dev/null
@@ -1,83 +0,0 @@
-#ifdef GL_ES
-#ifdef GL_FRAGMENT_PRECISION_HIGH
-precision highp float;
-#else
-precision mediump float;
-#endif
-#endif
-
-uniform float u_ScreenHeight;
-
-varying vec4 v_Color;
-varying vec4 v_BorderColor;
-varying vec2 v_Pos;
-varying vec2 v_Scale;
-varying vec4 v_BorderRadius;
-varying float v_BorderWidth;
-
-float _distance(vec2 frag_coord, vec2 position, vec2 size, float radius)
-{
-    // TODO: Try SDF approach: https://www.shadertoy.com/view/wd3XRN
-    vec2 inner_size = size - vec2(radius, radius) * 2.0;
-    vec2 top_left = position + vec2(radius, radius);
-    vec2 bottom_right = top_left + inner_size;
-
-    vec2 top_left_distance = top_left - frag_coord;
-    vec2 bottom_right_distance = frag_coord - bottom_right;
-
-    vec2 distance = vec2(
-        max(max(top_left_distance.x, bottom_right_distance.x), 0.0),
-        max(max(top_left_distance.y, bottom_right_distance.y), 0.0)
-    );
-
-    return sqrt(distance.x * distance.x + distance.y * distance.y);
-}
-
-float selectBorderRadius(vec4 radi, vec2 position, vec2 center)
-{
-    float rx = radi.x;
-    float ry = radi.y;
-    rx = position.x > center.x ? radi.y : radi.x;
-    ry = position.x > center.x ? radi.z : radi.w;
-    rx = position.y > center.y ? ry : rx;
-    return rx;
-}
-
-void main() {
-    vec2 fragCoord = vec2(gl_FragCoord.x, u_ScreenHeight - gl_FragCoord.y);
-
-    float border_radius = selectBorderRadius(
-        v_BorderRadius,
-        fragCoord,
-        (v_Pos + v_Scale * 0.5).xy
-    );
-
-    float internal_border = max(border_radius - v_BorderWidth, 0.0);
-
-    float internal_distance = _distance(
-        fragCoord,
-        v_Pos + vec2(v_BorderWidth),
-        v_Scale - vec2(v_BorderWidth * 2.0),
-        internal_border
-    );
-
-    float border_mix = smoothstep(
-        max(internal_border - 0.5, 0.0),
-        internal_border + 0.5,
-        internal_distance
-    );
-
-    vec4 mixed_color = mix(v_Color, v_BorderColor, border_mix);
-
-    float d = _distance(
-        fragCoord,
-        v_Pos,
-        v_Scale,
-        border_radius
-    );
-
-    float radius_alpha =
-        1.0 - smoothstep(max(border_radius - 0.5, 0.0), border_radius + 0.5, d);
-
-    gl_FragColor = vec4(mixed_color.xyz, mixed_color.w * radius_alpha);
-}