From 8c034655be48f2722bc5dc7ada06591ab91f05b9 Mon Sep 17 00:00:00 2001
From: QuantumCoderQC <QuantumCoderQC@gmail.com>
Date: Mon, 18 Oct 2021 19:49:25 +0200
Subject: [PATCH] implement morph_target.glsl

---
 Shaders/std/morph_target.glsl | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/Shaders/std/morph_target.glsl b/Shaders/std/morph_target.glsl
index 6fdf4b2f..616acb20 100644
--- a/Shaders/std/morph_target.glsl
+++ b/Shaders/std/morph_target.glsl
@@ -1,6 +1,27 @@
-#version 450
+uniform sampler2D morphDataPos;
+uniform sampler2D morphDataNor;
+uniform vec2 morphScaleOffset;
+uniform float morphWeights[32];
 
-uniform sampler2D morphData;
-uniform float morphWeights[maxMorphTargets];
+void getMorphedVertex(vec2 uvCoord, inout vec3 A){
+    for(int i = 0; i<32; i++ )
+    {
+        vec2 tempCoord = uvCoord;
+        tempCoord.y *= i;
+        vec3 morph = texture(morphDataPos, tempCoord).rgb * morphScaleOffset.x + morphScaleOffset.y;
+        A += morphWeights[i] * morph;
+    }
+}
 
-in vec2 texCoord;
+void getMorphedNormal(vec2 uvCoord, vec3 oldNor, inout vec3 morphNor){
+    for(int i = 0; i<32; i++ )
+    {
+        vec2 tempCoord = uvCoord;
+        tempCoord.y *= i;
+        vec3 norm = morphWeights[i] + (texture(morphDataNor, tempCoord).rgb * 2.0 - 1.0);
+        morphNor += norm;
+    }
+
+    morphNor += oldNor;
+    morphNor = normalize(morphNor);
+}
\ No newline at end of file