X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fmaterials%2Flighting.cpp;h=113735040ed22ccfa50ea3f71f2448249a857b16;hb=a2b0d155023ca23afe7848ae5d17e0f7bc328525;hp=cd04d1b4af153a981973c75e7eb8ff642d8f7545;hpb=5a83fca1840207999076343610bf76a6cdd6fdf5;p=libs%2Fgl.git

diff --git a/source/materials/lighting.cpp b/source/materials/lighting.cpp
index cd04d1b4..11373504 100644
--- a/source/materials/lighting.cpp
+++ b/source/materials/lighting.cpp
@@ -69,6 +69,12 @@ void Lighting::detach(const Light &l)
 	}
 }
 
+int Lighting::find_light_index(const Light &l) const
+{
+	auto i = find_member(lights, &l, &AttachedLight::light);
+	return (i!=lights.end() ? i-lights.begin() : -1);
+}
+
 const ProgramData &Lighting::get_shader_data() const
 {
 	for(unsigned i=0; i<lights.size(); ++i)