From 6eca28113430962fc6d8a9961db21ccc70d86596 Mon Sep 17 00:00:00 2001
From: Jozufozu <jozsefaug@gmail.com>
Date: Wed, 24 Nov 2021 11:12:59 -0800
Subject: [PATCH] Hack for contraption cutout

---
 .../flywheel/shaders/context/contraption.glsl      | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

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 61d0b80c2..42d22c52d 100644
--- a/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl
+++ b/src/main/resources/assets/create/flywheel/shaders/context/contraption.glsl
@@ -40,6 +40,14 @@ void FLWFinalizeWorldPos(inout vec4 worldPos) {
 #elif defined(FRAGMENT_SHADER)
 #use "flywheel:core/lightutil.glsl"
 
+#define ALPHA_DISCARD 0.1
+//
+//#if defined(ALPHA_DISCARD)
+//#if defined(GL_ARB_conservative_depth)
+//layout (depth_greater) out float gl_FragDepth;
+//#endif
+//#endif
+
 in vec3 BoxCoord;
 
 out vec4 FragColor;
@@ -57,6 +65,12 @@ void FLWFinalizeColor(vec4 color) {
     color.a = a;
     #endif
 
+    #if defined(ALPHA_DISCARD)
+    if (color.a < ALPHA_DISCARD) {
+        discard;
+    }
+    #endif
+
     FragColor = color;
 }