X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderable.h;h=eae75cce642768f9988adcd853f27d253a695c18;hb=16ab664fe93bffba059ea53deccbfed0305f7440;hp=b53fa9ac839307347bb614db7052dcfbe5a7a8cb;hpb=db498c7e634fa999cf4b4a8b67c49813009b1790;p=libs%2Fgl.git

diff --git a/source/renderable.h b/source/renderable.h
index b53fa9ac..eae75cce 100644
--- a/source/renderable.h
+++ b/source/renderable.h
@@ -2,6 +2,7 @@
 #define MSP_GL_RENDERABLE_H_
 
 #include <string>
+#include <msp/geometry/boundingsphere.h>
 #include "tag.h"
 
 namespace Msp {
@@ -38,6 +39,11 @@ public:
 	matrix exists. */
 	virtual const Matrix *get_matrix() const { return 0; }
 
+	/** Returns a bounding sphere that completely encloses the Renderable.  The
+	bounding sphere is expressed in the renderable's coordinates.  Null is
+	returned if the bounding sphere cannot be determined. */
+	virtual const Geometry::BoundingSphere<float, 3> *get_bounding_sphere() const { return 0; }
+
 	/** Called when starting to render a new frame. */
 	virtual void setup_frame() const { }