From 975add07551232401d04d8c7fe21cfa5114267bc Mon Sep 17 00:00:00 2001
From: deter0 <deter0109@gmail.com>
Date: Mon, 22 Aug 2022 17:58:00 -0400
Subject: [PATCH] Add anti-aliasing to flashlight mode

---
 src/frag.glsl | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/frag.glsl b/src/frag.glsl
index 7d79073..8af700f 100644
--- a/src/frag.glsl
+++ b/src/frag.glsl
@@ -11,7 +11,13 @@ uniform float cameraScale;
 void main()
 {
     vec4 cursor = vec4(cursorPos.x, windowSize.y - cursorPos.y, 0.0, 1.0);
+
+    float dist = distance(cursor, gl_FragCoord);
+    float delta = fwidth(dist);
+    float alpha = smoothstep(flRadius * cameraScale - delta, flRadius * cameraScale, dist);
+
     color = mix(
         texture(tex, texcoord), vec4(0.0, 0.0, 0.0, 0.0),
-        length(cursor - gl_FragCoord) < (flRadius * cameraScale) ? 0.0 : flShadow);
+        min(alpha, flShadow)
+    );
 }