X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fshadowmap.cpp;h=9dadb8fe16ee4991eda732ceb0219373d8267bfe;hb=927a1aa0a3a27e463ec0efc08bd08e7c4e969909;hp=5f66d8984279ce55f9cfc98fcf2298d34fa31337;hpb=98c810b6d2256aa65986bbde12c38917678121bb;p=libs%2Fgl.git

diff --git a/source/shadowmap.cpp b/source/shadowmap.cpp
index 5f66d898..9dadb8fe 100644
--- a/source/shadowmap.cpp
+++ b/source/shadowmap.cpp
@@ -54,9 +54,19 @@ void ShadowMap::set_texture_unit(unsigned u)
 
 void ShadowMap::prepare()
 {
-	const Vector4 &lpos=light.get_position();
+	Vector4 lpos=light.get_position();
 	if(lpos.w)
-		throw Exception("Non-directional lights not supported at the moment");
+	{
+		/* XXX Not really proper way to support positional lights, but good
+		enough when the light source is far away */
+		lpos.x-=target.x;
+		lpos.y-=target.y;
+		lpos.z-=target.z;
+		float d=sqrt(lpos.x*lpos.x+lpos.y*lpos.y+lpos.z*lpos.z);
+		lpos.x/=d;
+		lpos.y/=d;
+		lpos.z/=d;
+	}
 
 	float matrix[16];
 	if(abs(lpos.z)>=abs(lpos.x) && abs(lpos.z)>=abs(lpos.y))