From e928688aa492e074efa5716663d38f89caca5683 Mon Sep 17 00:00:00 2001
From: Damocles <damocles@darkest.space>
Date: Mon, 13 Apr 2026 21:34:34 +0200
Subject: [PATCH] =?UTF-8?q?fix=20jarring=20color=20jump=20in=20hex=20shimm?=
 =?UTF-8?q?er:=20sawtooth=20=E2=86=92=20triangle=20wave?=
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---
 modules/hex_wave.frag | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/hex_wave.frag b/modules/hex_wave.frag
index 6c0e4c2..6f204df 100644
--- a/modules/hex_wave.frag
+++ b/modules/hex_wave.frag
@@ -77,7 +77,8 @@ void main() {
     if (wf > 0.01 && edgeFactor > 0.0) {
         // Vary shimmer color across theme gradient using angle + position
         float angle = atan(p.y, p.x);
-        float t = fract((angle + 3.14159) / 6.28318 + center.x * 0.003 + center.y * 0.005);
+        float rawT = fract((angle + 3.14159) / 6.28318 + center.x * 0.003 + center.y * 0.005);
+        float t = abs(rawT * 2.0 - 1.0);  // triangle wave → uC0→uC1→uC2→uC1→uC0, no hard jump
         vec3 shimmerColor = themeGradient(t);
 
         float shimmer = edgeFactor * wf;