From c7713779fcf507b24ef55964c4e026eb44f3df9b Mon Sep 17 00:00:00 2001
From: Krisjanis Rijnieks <krisjanis.rijnieks@gmail.com>
Date: Sun, 17 Jan 2016 21:59:30 +0100
Subject: [PATCH] Calculate 4d texture coordinates only if
 `_perspectiveWarping` flag is true

---
 src/Surfaces/QuadSurface.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/Surfaces/QuadSurface.cpp b/src/Surfaces/QuadSurface.cpp
index ba6a872..0f8f631 100644
--- a/src/Surfaces/QuadSurface.cpp
+++ b/src/Surfaces/QuadSurface.cpp
@@ -79,11 +79,11 @@ void QuadSurface::draw(){
 		return;
 	}
 
-	if(mesh.haveVertsChanged() || mesh.haveTexCoordsChanged()){
-	    calculate4dTextureCoords();
-	}
-	
 	if(_perspectiveWarping){
+		if(mesh.haveVertsChanged() || mesh.haveTexCoordsChanged()){
+			calculate4dTextureCoords();
+		}
+	
 		glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 		glTexCoordPointer(4, GL_FLOAT, 0, quadTexCoordinates);
 		glVertexPointer(3, GL_FLOAT, 0, quadVertices);