From b45c88fc4f9af2808d0df5b9e7c2a53b3e723eda Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@zdoom.fake>
Date: Sun, 5 Apr 2015 20:20:56 +0200
Subject: [PATCH] - changed shaders.

---
 wadsrc/static/shaders/glsl/main.vp      | 5 +++++
 wadsrc/static/shaders/glsl/shaderdefs.i | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/wadsrc/static/shaders/glsl/main.vp b/wadsrc/static/shaders/glsl/main.vp
index 86fad75cc..75f814887 100644
--- a/wadsrc/static/shaders/glsl/main.vp
+++ b/wadsrc/static/shaders/glsl/main.vp
@@ -43,6 +43,11 @@ void main()
 	#endif
 	
 	gl_Position = ProjectionMatrix * eyeCoordPos;
+	
+	// clip planes used for reflective flats
 	gl_ClipDistance[0] = worldcoord.y - uClipHeightBottom;
 	gl_ClipDistance[1] = uClipHeightTop - worldcoord.y;
+	
+	gl_ClipDistance[2] = worldcoord.y - uClipSplit.x;
+	gl_ClipDistance[3] = uClipSplit.y - worldcoord.y;
 }
diff --git a/wadsrc/static/shaders/glsl/shaderdefs.i b/wadsrc/static/shaders/glsl/shaderdefs.i
index 3711bf814..d49034973 100644
--- a/wadsrc/static/shaders/glsl/shaderdefs.i
+++ b/wadsrc/static/shaders/glsl/shaderdefs.i
@@ -7,6 +7,7 @@ precision highp float;
 uniform vec4 uCameraPos;
 uniform int uTextureMode;
 uniform float uClipHeightTop, uClipHeightBottom;
+uniform vec2 uClipSplit;
 
 uniform float uAlphaThreshold;
 
@@ -29,6 +30,9 @@ uniform vec4 uGlowTopColor;
 uniform vec4 uGlowBottomPlane;
 uniform vec4 uGlowBottomColor;
 
+uniform vec4 uSplitTopPlane;
+uniform vec4 uSplitBottomPlane;
+
 // Lighting + Fog
 uniform vec4 uLightAttr;
 #define uLightLevel uLightAttr.a