provides a framebuffer of fixed size for offscreen rendering. More...
#include <framebuffer.h>
Inheritance diagram for glut::Framebuffer:
Public Member Functions | |
| virtual | ~Framebuffer (void) throw () |
| virtual int | getWidth (void) const =0 throw () |
| virtual int | getHeight (void) const =0 throw () |
| virtual void | setupForRendering (IN int textureId, IN const render_context_t &rc)=0 |
| virtual void | endRendering (void)=0 throw () |
Static Public Member Functions | |
| static smart_ptr< Framebuffer > | create (IN int width, IN int height) |
Detailed Description
provides a framebuffer of fixed size for offscreen rendering.
To use:
- create the framebuffer with the set width and height
- create a texture of the same width and height
- call Framebuffer::setupForRendering() with the texture. The perspective matrix will be tweaked to account for the new aspect ratio, but the modelview matrix will not change!
- perform any rendering you want with that render context.
- when finished, call Framebuffer::endRendering(). This will clean up everythin and restore the original OpenGL transforms.
- the texture now contains whatever was rendered offscreen.
However, once you create a Framebuffer, it is recommended that you use a FramebufferContext to manage calling setupForRendering() and endRendering() automatically.
Definition at line 65 of file framebuffer.h.
Constructor & Destructor Documentation
| glut::Framebuffer::~Framebuffer | ( | void | ) | throw () [virtual] |
Definition at line 40 of file framebuffer.cpp.
Member Function Documentation
| virtual int glut::Framebuffer::getWidth | ( | void | ) | const throw () [pure virtual] |
| virtual int glut::Framebuffer::getHeight | ( | void | ) | const throw () [pure virtual] |
| virtual void glut::Framebuffer::setupForRendering | ( | IN int | textureId, | |
| IN const render_context_t & | rc | |||
| ) | [pure virtual] |
| virtual void glut::Framebuffer::endRendering | ( | void | ) | throw () [pure virtual] |
| smart_ptr< Framebuffer > glut::Framebuffer::create | ( | IN int | width, | |
| IN int | height | |||
| ) | [static] |
Definition at line 235 of file framebuffer.cpp.
The documentation for this class was generated from the following files:
