From 57d95f1831768495a702c1de5f15f3212f7b61ea Mon Sep 17 00:00:00 2001
From: gydence <120065079+gydence@users.noreply.github.com>
Date: Wed, 14 Dec 2022 21:20:39 -0800
Subject: [PATCH] fix(MeshRefractionMaterial): vNormal should be normalized
 (#1184)

---
 src/materials/MeshRefractionMaterial.tsx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/materials/MeshRefractionMaterial.tsx b/src/materials/MeshRefractionMaterial.tsx
index 343e86b5a..167fd33ff 100644
--- a/src/materials/MeshRefractionMaterial.tsx
+++ b/src/materials/MeshRefractionMaterial.tsx
@@ -47,9 +47,9 @@ export const MeshRefractionMaterial = shaderMaterial(
   
     projectionMatrixInv = inverse(projectionMatrix);
     viewMatrixInv = inverse(viewMatrix);
-  
-    vWorldPosition = (modelMatrix * transformedPosition).xyz;    
-    vNormal = (viewMatrixInv * vec4(normalMatrix * transformedNormal.xyz, 0.0)).xyz;
+
+    vWorldPosition = (modelMatrix * transformedPosition).xyz;
+    vNormal = normalize((viewMatrixInv * vec4(normalMatrix * transformedNormal.xyz, 0.0)).xyz);
     viewDirection = normalize(vWorldPosition - cameraPosition);
     gl_Position = projectionMatrix * viewMatrix * modelMatrix * transformedPosition;
   }`,