X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftechnique.cpp;h=09799acee8841ac3eefe9d3fe1cfb5fa08801283;hb=56133280d92c08c1c649a725260a6c4d5afb5e75;hp=d6ec7115f6e703a5b215803952a27716f934e468;hpb=72a13418cc19e750abf3f8d8a52aea5e1abe4983;p=libs%2Fgl.git

diff --git a/source/technique.cpp b/source/technique.cpp
index d6ec7115..09799ace 100644
--- a/source/technique.cpp
+++ b/source/technique.cpp
@@ -28,6 +28,12 @@ const RenderPass &Technique::get_pass(const Tag &tag) const
 	return get_item(passes, tag);
 }
 
+const RenderPass *Technique::find_pass(const Tag &tag) const
+{
+	PassMap::const_iterator i = passes.find(tag);
+	return (i!=passes.end() ? &i->second : 0);
+}
+
 bool Technique::replace_texture(const string &slot, const Texture &tex)
 {
 	bool replaced = false;
@@ -129,6 +135,9 @@ void Technique::Loader::pass(const string &n)
 	else
 		load_sub(p);
 
+	if(!p.get_shader_program())
+		throw logic_error("no shader program in pass");
+
 	insert_unique(obj.passes, n, p);
 }