diff --git a/handheld/gameboy/shader-files/gb-pass4.slang b/handheld/gameboy/shader-files/gb-pass4.slang
index e2bab35..d99dbb7 100644
--- a/handheld/gameboy/shader-files/gb-pass4.slang
+++ b/handheld/gameboy/shader-files/gb-pass4.slang
@@ -74,13 +74,13 @@ layout(location = 0) in vec2 vTexCoord;
 layout(location = 1) in vec2 texel;
 layout(location = 0) out vec4 FragColor;
 layout(set = 0, binding = 2) uniform sampler2D Source;
-layout(set = 0, binding = 3) uniform sampler2D PASS1;
+layout(set = 0, binding = 3) uniform sampler2D PassOutput1;
 
 void main()
 {
 //sample all the relevant textures
-vec4 foreground = texture(PASS1, vTexCoord - screen_offset);
-vec4 background = vec4(0.5);
+vec4 foreground = texture(PassOutput1, vTexCoord - screen_offset);
+vec4 background = vec4(0.5); //hardcoded value rather than LUT
 vec4 shadows    = texture(Source, vTexCoord - (shadow_offset + screen_offset));
 vec4 background_color = bg_color;
 
@@ -103,4 +103,4 @@ vec4 background_color = bg_color;
   out_color = (foreground * foreground.a * contrast) + (out_color * (screen_light - foreground.a * contrast * pixel_opacity));
   
    FragColor = vec4(out_color);
-}
\ No newline at end of file
+}