From 874906bedfc224338a62a2538b975148aeb2fbde Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Wed, 18 Jan 2023 10:04:51 -0800
Subject: [PATCH] Replace 'light_source_position' with 'light_position'

---
 manimlib/shaders/textured_surface/frag.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manimlib/shaders/textured_surface/frag.glsl b/manimlib/shaders/textured_surface/frag.glsl
index 7d8010e6..5c4a54a6 100644
--- a/manimlib/shaders/textured_surface/frag.glsl
+++ b/manimlib/shaders/textured_surface/frag.glsl
@@ -20,7 +20,7 @@ void main() {
     if(num_textures == 2.0){
         vec4 dark_color = texture(DarkTexture, v_im_coords);
         float dp = dot(
-            normalize(light_source_position - v_point),
+            normalize(light_position - v_point),
             normalize(v_normal)
         );
         float alpha = smoothstep(-dark_shift, dark_shift, dp);