From 47f8d3f1b5adf7fdd0388b77ce24b4d1fdae639a Mon Sep 17 00:00:00 2001
From: Jozufozu <jozsefaug@gmail.com>
Date: Sat, 11 Dec 2021 17:31:10 -0800
Subject: [PATCH] Cylindrical fog

 - having the world position is very nice
 - mojang manages to do multiple matrix multiplications
---
 .../assets/create/flywheel/shaders/context/contraption.glsl | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl b/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl
index 42d22c52d..03ec29fbb 100644
--- a/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl
+++ b/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl
@@ -30,9 +30,7 @@ void FLWFinalizeWorldPos(inout vec4 worldPos) {
 
     BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
 
-    #if defined(USE_FOG)
-    FragDistance = length(worldPos.xyz);
-    #endif
+    FragDistance = max(length(worldPos.xz), abs(worldPos.y)); // cylindrical fog
 
     gl_Position = uViewProjection * worldPos;
 }
@@ -57,13 +55,11 @@ vec4 FLWBlockTexture(vec2 texCoords) {
 }
 
 void FLWFinalizeColor(vec4 color) {
-    #if defined(USE_FOG)
     float a = color.a;
     float fog = clamp(FLWFogFactor(), 0., 1.);
 
     color = mix(uFogColor, color, fog);
     color.a = a;
-    #endif
 
     #if defined(ALPHA_DISCARD)
     if (color.a < ALPHA_DISCARD) {