From 88809647a69e2694ade90070c73d70b2fe74afc1 Mon Sep 17 00:00:00 2001
From: Richard Davey <rich@photonstorm.com>
Date: Fri, 6 Nov 2020 17:22:17 +0000
Subject: [PATCH] Expose outFragCoord

---
 src/renderer/webgl/shaders/PostFX-vert.js  | 2 ++
 src/renderer/webgl/shaders/src/PostFX.vert | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/renderer/webgl/shaders/PostFX-vert.js b/src/renderer/webgl/shaders/PostFX-vert.js
index 94145dfca..f90661c41 100644
--- a/src/renderer/webgl/shaders/PostFX-vert.js
+++ b/src/renderer/webgl/shaders/PostFX-vert.js
@@ -8,12 +8,14 @@ module.exports = [
     'attribute vec2 inPosition;',
     'attribute vec2 inTexCoord;',
     '',
+    'varying vec2 outFragCoord;',
     'varying vec2 outTexCoord;',
     '',
     'void main ()',
     '{',
     '    gl_Position = uProjectionMatrix * vec4(inPosition, 1.0, 1.0);',
     '',
+    '    outFragCoord = inPosition;',
     '    outTexCoord = inTexCoord;',
     '}',
     ''
diff --git a/src/renderer/webgl/shaders/src/PostFX.vert b/src/renderer/webgl/shaders/src/PostFX.vert
index 2a4c4c860..a093e17d4 100644
--- a/src/renderer/webgl/shaders/src/PostFX.vert
+++ b/src/renderer/webgl/shaders/src/PostFX.vert
@@ -7,11 +7,13 @@ uniform mat4 uProjectionMatrix;
 attribute vec2 inPosition;
 attribute vec2 inTexCoord;
 
+varying vec2 outFragCoord;
 varying vec2 outTexCoord;
 
 void main ()
 {
     gl_Position = uProjectionMatrix * vec4(inPosition, 1.0, 1.0);
 
+    outFragCoord = inPosition;
     outTexCoord = inTexCoord;
 }