From 6ac3da1b0bd363d70c2f6e4b7b921f2f929dedac Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Sun, 12 Oct 2025 15:00:47 -0700
Subject: add uv scroll, aniso16, and finish tubes

---
 custom31.slang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'custom31.slang')

diff --git a/custom31.slang b/custom31.slang
index 1254800..61afe4a 100644
--- a/custom31.slang
+++ b/custom31.slang
@@ -99,7 +99,7 @@ public float3 plane_to_tube(float3 xyz, no_diff float t) {
   float z0 = xyz.z;
 
   float theta = x0 * PI;
-  float radius = min(1e3, (1.0f / (t * t)));
+  float radius = min(1e3, (1.0f / (t * t))) * sign(t) ;
 
   float x = sin(theta / radius) * radius * PI_RCP;
   // The z0 term here is required to make the jacobian invertible.
-- 
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