From 12bc7ebf5b30917eaf282b2612da666ba2b35b4a Mon Sep 17 00:00:00 2001
From: Chris Carmichael <ccarmichael@uncharted.software>
Date: Wed, 6 Mar 2024 11:18:43 -0400
Subject: [PATCH] add back in antialiasing

---
 src/graph/nodes/ring/Ring.fs.glsl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/graph/nodes/ring/Ring.fs.glsl b/src/graph/nodes/ring/Ring.fs.glsl
index 89100f6..7e82fda 100755
--- a/src/graph/nodes/ring/Ring.fs.glsl
+++ b/src/graph/nodes/ring/Ring.fs.glsl
@@ -19,10 +19,18 @@ void main() {
     float thickness = uOutline / 2.0;
     float innerRadius = 1.0 - thickness;
     float ring = opOnion(sdCircle(vFromCenter, innerRadius), thickness);
+    float antialias = fPixelLength * 1.5;
 
     if (ring > 0.0) {
         discard;
     }
 
-    fragColor = outputColor(vec4(fColor.rgb, 1.0));
+    if (uRenderMode == MODE_HIGH_PASS_2) {
+        if (ring < -antialias) {
+            discard;
+        }
+        fragColor = outputColor(vec4(fColor.rgb, smoothstep(0.0, antialias, abs(ring))));
+    } else {
+        fragColor = outputColor(vec4(fColor.rgb, 1.0));
+    }
 }