From f634d19fdc8954077528cd2782abfe1d3ee58107 Mon Sep 17 00:00:00 2001
From: Ian Curtis <i.curtis@gmail.com>
Date: Thu, 24 Jan 2019 19:11:26 +0000
Subject: [PATCH] Fix shader. Why this worked on my nvidia card .. I'm not
 sure.

---
 Src/Graphics/New3D/R3DFrameBuffers.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Src/Graphics/New3D/R3DFrameBuffers.cpp b/Src/Graphics/New3D/R3DFrameBuffers.cpp
index 44632fb..91d4cad 100644
--- a/Src/Graphics/New3D/R3DFrameBuffers.cpp
+++ b/Src/Graphics/New3D/R3DFrameBuffers.cpp
@@ -317,7 +317,7 @@ void R3DFrameBuffers::AllocShaderWipe()
 	{
 		vec4 colBase = texture2D( texColor, fsTexCoord);
 
-		if(colBase == 0.0) {
+		if(colBase.a == 0.0) {
 			discard;						// no colour pixels have been written
 		}