From 7576068202487ee81bd0b9b3b445a7f36a1fe220 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Thu, 24 May 2018 11:58:51 +0300
Subject: [PATCH] - fixed compilation warning with MSVC 2015

src\polyrenderer\scene/poly_portal.cpp(142): warning C4800: 'line_t *': forcing value to bool 'true' or 'false' (performance warning)
---
 src/polyrenderer/scene/poly_portal.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/polyrenderer/scene/poly_portal.cpp b/src/polyrenderer/scene/poly_portal.cpp
index 93fe10053..f85314564 100644
--- a/src/polyrenderer/scene/poly_portal.cpp
+++ b/src/polyrenderer/scene/poly_portal.cpp
@@ -139,7 +139,7 @@ void PolyDrawLinePortal::Render(int portalDepth)
 	DVector2 pt2 = clipLine->v2->fPos() - PolyRenderer::Instance()->Viewpoint.Pos;
 	bool backfacing = (pt1.Y * (pt1.X - pt2.X) + pt1.X * (pt2.Y - pt1.Y) >= 0);
 
-	PortalViewpoint = PolyRenderer::Instance()->SetupPerspectiveMatrix(Mirror);
+	PortalViewpoint = PolyRenderer::Instance()->SetupPerspectiveMatrix(Mirror != nullptr);
 	PortalViewpoint.StencilValue = StencilValue;
 	PortalViewpoint.PortalDepth = portalDepth;
 	PortalViewpoint.PortalEnterLine = clipLine;