+++ /dev/null
-#ifndef MSP_GL_RENDERABLE_H_
-#define MSP_GL_RENDERABLE_H_
-
-#include <string>
-#include <msp/geometry/boundingsphere.h>
-#include "tag.h"
-
-namespace Msp {
-namespace GL {
-
-class Matrix;
-class Renderer;
-
-/**
-Base class for renderable objects. Rendering is performed with the help of a
-Renderer object.
-
-The render method takes a Tag to identify a render pass. It can be used with
-a Technique to select alternative rendering methods, such as simplified shaders
-for a depth-only shadow pass.
-
-The setup_frame and finish_frame methods provide a mechanism for performing
-once-per-frame operations. This is most useful for effects, which may need to
-do auxiliary rendering. With complex rendering hierarchies, these methods may
-be called multiple times for one frame, but it's guaranteed that no rendering
-will occur before a setup_frame call or after a finish_frame call.
-*/
-class Renderable
-{
-protected:
- Renderable() { }
-public:
- virtual ~Renderable() { }
-
- /** Returns a key used for grouping Renderables in an InstanceScene. The
- 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. The matrix should be in world space for some effects to work
- correctly. */
- 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(Renderer &) { }
-
- /** Called when a complete frame has been rendered. */
- virtual void finish_frame() { }
-
- /** Renders the Renderable. Implementors should take care to return the
- renderer to the state it was in, for example by using Renderer::Push. */
- virtual void render(Renderer &, const Tag & = Tag()) const = 0;
-};
-
-} // namespace Msp
-} // namespace GL
-
-#endif