From 9b03537f3a235c3146b689892e9da145f4a1d0c1 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Fri, 12 Jun 2020 21:40:49 +0200
Subject: [PATCH] - fixed shadows in Shadow Warrior.

They use a shade of 127 which wasn't clamped to a valid range in the backend.
---
 source/glbackend/glbackend.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/glbackend/glbackend.h b/source/glbackend/glbackend.h
index 91cb18e52..7ea6dba15 100644
--- a/source/glbackend/glbackend.h
+++ b/source/glbackend/glbackend.h
@@ -11,6 +11,7 @@
 #include "hw_material.h"
 #include "hw_renderstate.h"
 #include "pm_renderstate.h"
+#include "templates.h"
 
 class FShader;
 class FGameTexture;
@@ -167,7 +168,7 @@ public:
 
 	void SetShade(int32_t shade, int numshades)
 	{
-		renderState.Shade = shade;
+		renderState.Shade = clamp(shade, 0, numshades-1);
 	}
 
 	void SetVisibility(float visibility)