From de406ef0dbbb6b7ff953e1b9a0dcdf5daee25d9b Mon Sep 17 00:00:00 2001
From: Mike Bond <mdcbond@gmail.com>
Date: Wed, 25 Sep 2024 13:03:48 -0700
Subject: [PATCH] Remove unneeded prepass code

---
 .../src/Rendering/geometryBufferRenderer.ts   | 30 ++++++-------------
 .../dev/core/src/Shaders/geometry.fragment.fx | 26 +++++-----------
 .../core/src/ShadersWGSL/geometry.fragment.fx | 26 +++++-----------
 3 files changed, 25 insertions(+), 57 deletions(-)

diff --git a/packages/dev/core/src/Rendering/geometryBufferRenderer.ts b/packages/dev/core/src/Rendering/geometryBufferRenderer.ts
index 499e1e2593e..f7c9c50da7a 100644
--- a/packages/dev/core/src/Rendering/geometryBufferRenderer.ts
+++ b/packages/dev/core/src/Rendering/geometryBufferRenderer.ts
@@ -673,29 +673,17 @@ export class GeometryBufferRenderer {
             }
         }
 
-        // PrePass
-        if (this._linkedWithPrePass) {
-            defines.push("#define PREPASS");
-            if (this._depthIndex !== -1) {
-                defines.push("#define DEPTH_INDEX " + this._depthIndex);
-                defines.push("#define PREPASS_DEPTH");
-            }
-            if (this._normalIndex !== -1) {
-                defines.push("#define NORMAL_INDEX " + this._normalIndex);
-                defines.push("#define PREPASS_NORMAL");
-            }
-        } else {
-            if (this._enableDepth) {
-                defines.push("#define DEPTH");
-                defines.push("#define DEPTH_INDEX " + this._depthIndex);
-            }
-            if (this._enableNormal) {
-                defines.push("#define NORMAL");
-                defines.push("#define NORMAL_INDEX " + this._normalIndex);
-            }
+        // Buffers
+        if (this._enableDepth) {
+            defines.push("#define DEPTH");
+            defines.push("#define DEPTH_INDEX " + this._depthIndex);
+        }
+
+        if (this._enableNormal) {
+            defines.push("#define NORMAL");
+            defines.push("#define NORMAL_INDEX " + this._normalIndex);
         }
 
-        // Buffers
         if (this._enablePosition) {
             defines.push("#define POSITION");
             defines.push("#define POSITION_INDEX " + this._positionIndex);
diff --git a/packages/dev/core/src/Shaders/geometry.fragment.fx b/packages/dev/core/src/Shaders/geometry.fragment.fx
index b59ab478ed0..f28adb36310 100644
--- a/packages/dev/core/src/Shaders/geometry.fragment.fx
+++ b/packages/dev/core/src/Shaders/geometry.fragment.fx
@@ -92,24 +92,14 @@ void main() {
         normalOutput = normalOutput * 0.5 + 0.5;
     #endif
 
-    #ifdef PREPASS
-        #ifdef PREPASS_DEPTH
-            gl_FragData[DEPTH_INDEX] = vec4(vViewPos.z / vViewPos.w, 0.0, 0.0, 1.0);
-        #endif
-
-        #if defined(PREPASS_NORMAL) || defined(PREPASS_WORLD_NORMAL)
-            gl_FragData[NORMAL_INDEX] = vec4(normalOutput, 1.0);
-        #endif
-    #else
-        #ifdef DEPTH
-            gl_FragData[DEPTH_INDEX] = vec4(vViewPos.z / vViewPos.w, 0.0, 0.0, 1.0);
-        #endif
-        #ifdef NORMAL
-            gl_FragData[NORMAL_INDEX] = vec4(normalOutput, 1.0);
-        #endif
-        #ifdef SCREENSPACE_DEPTH
-            gl_FragData[SCREENSPACE_DEPTH_INDEX] = vec4(gl_FragCoord.z, 0.0, 0.0, 1.0);
-        #endif
+    #ifdef DEPTH
+        gl_FragData[DEPTH_INDEX] = vec4(vViewPos.z / vViewPos.w, 0.0, 0.0, 1.0);
+    #endif
+    #ifdef NORMAL
+        gl_FragData[NORMAL_INDEX] = vec4(normalOutput, 1.0);
+    #endif
+    #ifdef SCREENSPACE_DEPTH
+        gl_FragData[SCREENSPACE_DEPTH_INDEX] = vec4(gl_FragCoord.z, 0.0, 0.0, 1.0);
     #endif
 
     #ifdef POSITION
diff --git a/packages/dev/core/src/ShadersWGSL/geometry.fragment.fx b/packages/dev/core/src/ShadersWGSL/geometry.fragment.fx
index da08698d768..f25fb980a53 100644
--- a/packages/dev/core/src/ShadersWGSL/geometry.fragment.fx
+++ b/packages/dev/core/src/ShadersWGSL/geometry.fragment.fx
@@ -91,24 +91,14 @@ fn main(input: FragmentInputs) -> FragmentOutputs {
     #endif
     
     var fragData: array<vec4<f32>, SCENE_MRT_COUNT>;
-    #ifdef PREPASS    
-        #ifdef PREPASS_DEPTH
-            fragData[DEPTH_INDEX] =  vec4f(input.vViewPos.z / input.vViewPos.w, 0.0, 0.0, 1.0);
-        #endif
-
-        #if defined(PREPASS_NORMAL) || defined(PREPASS_WORLD_NORMAL)
-            fragData[NORMAL_INDEX] =  vec4f(normalOutput, 1.0);
-        #endif
-    #else
-        #ifdef DEPTH
-            fragData[DEPTH_INDEX] = vec4f(input.vViewPos.z / input.vViewPos.w, 0.0, 0.0, 1.0);
-        #endif
-        #ifdef NORMAL
-            fragData[NORMAL_INDEX] = vec4f(normalOutput, 1.0);
-        #endif
-        #ifdef SCREENSPACE_DEPTH
-            fragData[SCREENSPACE_DEPTH_INDEX] = vec4f(fragmentInputs.position.z, 0.0, 0.0, 1.0);
-        #endif
+    #ifdef DEPTH
+        fragData[DEPTH_INDEX] = vec4f(input.vViewPos.z / input.vViewPos.w, 0.0, 0.0, 1.0);
+    #endif
+    #ifdef NORMAL
+        fragData[NORMAL_INDEX] = vec4f(normalOutput, 1.0);
+    #endif
+    #ifdef SCREENSPACE_DEPTH
+        fragData[SCREENSPACE_DEPTH_INDEX] = vec4f(fragmentInputs.position.z, 0.0, 0.0, 1.0);
     #endif
 
     #ifdef POSITION