From a522e7738d75e84cc1ee1491a098421622ef1918 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Fri, 11 Apr 2025 19:17:06 -0700
Subject: add rough ability to nudge tessellation heightmap direction

---
 2ner.cginc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to '2ner.cginc')

diff --git a/2ner.cginc b/2ner.cginc
index 065015f..3b420e9 100644
--- a/2ner.cginc
+++ b/2ner.cginc
@@ -13,6 +13,7 @@
 #include "interpolators.cginc"
 #include "letter_grid.cginc"
 #include "matcaps.cginc"
+#include "math.cginc"
 #include "poi.cginc"
 #include "shatter_wave.cginc"
 #include "ssfd.cginc"
@@ -174,11 +175,11 @@ float4 frag(v2f i, uint facing : SV_IsFrontFace
   i.tangent = UnityObjectToWorldNormal(i.tangent);
   i.binormal = UnityObjectToWorldNormal(i.binormal);
 
-#if defined(_SHATTER_WAVE)
-  shatterWaveFrag(i.normal, i.objPos);
+#if defined(_SHATTER_WAVE) || defined(_TESSELLATION_HEIGHTMAP)
+  calcNormalInScreenSpace(i.normal, i.objPos);
 #endif
 
-#if defined(_SHATTER_WAVE) || defined(_VERTEX_DOMAIN_WARPING)
+#if defined(_SHATTER_WAVE) || defined(_VERTEX_DOMAIN_WARPING) || defined(_TESSELLATION_HEIGHTMAP)
   {
     [branch]
     if (
@@ -188,6 +189,9 @@ float4 frag(v2f i, uint facing : SV_IsFrontFace
 #endif
 #if defined(_VERTEX_DOMAIN_WARPING)
         || _Vertex_Domain_Warping_Octaves > 0.1
+#endif
+#if defined(_TESSELLATION_HEIGHTMAP)
+        || _Tessellation_Heightmap_Scale > 1E-4
 #endif
     ) {
       float4 clip_pos = UnityObjectToClipPos(i.objPos);
-- 
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