From 06eab0540754af38ee48bfc3e044e005cbece018 Mon Sep 17 00:00:00 2001
From: Axel Bocciarelli <axelboc@gmail.com>
Date: Wed, 16 Feb 2022 10:18:09 +0100
Subject: [PATCH] Flip Y dimension in RGB shader

---
 packages/lib/src/vis/rgb/RgbMesh.tsx | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/lib/src/vis/rgb/RgbMesh.tsx b/packages/lib/src/vis/rgb/RgbMesh.tsx
index 69b81ee24..371b3c926 100644
--- a/packages/lib/src/vis/rgb/RgbMesh.tsx
+++ b/packages/lib/src/vis/rgb/RgbMesh.tsx
@@ -25,9 +25,11 @@ function RgbMesh(props: Props) {
       varying vec2 coords;
 
       void main() {
-        float red = texture(data, vec3(0., coords)).r;
-        float green = texture(data, vec3(0.5, coords)).r;
-        float blue = texture(data, vec3(1., coords)).r;
+        float yFlipped = 1. - coords.y;
+
+        float red = texture(data, vec3(0., coords.x, yFlipped)).r;
+        float green = texture(data, vec3(0.5, coords.x, yFlipped)).r;
+        float blue = texture(data, vec3(1., coords.x, yFlipped)).r;
 
         if (bgr) {
           gl_FragColor = vec4(blue, green, red, 1.);
@@ -39,7 +41,7 @@ function RgbMesh(props: Props) {
   };
 
   return (
-    <VisMesh scale={[1, -1, 1]}>
+    <VisMesh>
       <shaderMaterial args={[shader]} />
     </VisMesh>
   );