X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderable.h;h=3432a87ee77ed4db3c72600061127bef767c768d;hb=f2592f0e67d92043952eb7a2e39df182720cd990;hp=2342ae288cfed9b4d8fa61f25bf932ae47058540;hpb=904de4f7fd994886adbd3a6c03bc1b7c14ebc562;p=libs%2Fgl.git

diff --git a/source/renderable.h b/source/renderable.h
index 2342ae28..3432a87e 100644
--- a/source/renderable.h
+++ b/source/renderable.h
@@ -7,6 +7,7 @@
 namespace Msp {
 namespace GL {
 
+class Matrix;
 class Renderer;
 
 /**
@@ -27,6 +28,10 @@ public:
 	returned value is treated as opaque. */
 	virtual long get_instance_key() const { return 0; }
 
+	/** Returns the model matrix of the Renderable.  Null is returned if no such
+	matrix exists. */
+	virtual const Matrix *get_matrix() const { return 0; }
+
 	/** Renders the renderable without a renderer.  This can be convenient in
 	some simple cases, but most renderables don't need to implement this
 	method. */