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Crazy Eddies GUI System 0.7.6
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Intermediate OpenGL implementation of a RenderTarget. More...
Inheritance diagram for CEGUI::OpenGLRenderTarget:
Collaboration diagram for CEGUI::OpenGLRenderTarget:Public Member Functions | |
| OpenGLRenderTarget (OpenGLRenderer &owner) | |
| Constructor. | |
| void | draw (const GeometryBuffer &buffer) |
| Draw geometry from the given GeometryBuffer onto the surface that this RenderTarget represents. | |
| void | draw (const RenderQueue &queue) |
| Draw geometry from the given RenderQueue onto the surface that this RenderTarget represents. | |
| void | setArea (const Rect &area) |
| Set the area for this RenderTarget. The exact action this function will take depends upon what the concrete class is representing. For example, with a 'view port' style RenderTarget, this should set the area that the view port occupies on the display (or rendering window). | |
| const Rect & | getArea () const |
| Return the area defined for this RenderTarget. | |
| void | activate () |
| Activate the render target and put it in a state ready to be drawn to. | |
| void | deactivate () |
| Deactivate the render target after having completed rendering. | |
| void | unprojectPoint (const GeometryBuffer &buff, const Vector2 &p_in, Vector2 &p_out) const |
| Take point p_in unproject it and put the result in p_out. Resulting point is local to GeometryBuffer buff. | |
Protected Member Functions | |
| virtual void | updateMatrix () const |
| helper that initialises the cached matrix | |
Protected Attributes | |
| OpenGLRenderer & | d_owner |
| OpenGLRenderer that created this object. | |
| Rect | d_area |
| holds defined area for the RenderTarget | |
| double | d_matrix [16] |
| saved copy of projection matrix | |
| bool | d_matrixValid |
| true if saved matrix is up to date | |
| double | d_viewDistance |
| tracks viewing distance (this is set up at the same time as d_matrix) | |
Static Protected Attributes | |
| static const double | d_yfov_tan |
| tangent of the y FOV half-angle; used to calculate viewing distance. | |
Intermediate OpenGL implementation of a RenderTarget.
| void CEGUI::OpenGLRenderTarget::activate | ( | ) | [virtual] |
Activate the render target and put it in a state ready to be drawn to.
Implements CEGUI::RenderTarget.
Reimplemented in CEGUI::OpenGLApplePBTextureTarget, CEGUI::OpenGLFBOTextureTarget, CEGUI::OpenGLGLXPBTextureTarget, and CEGUI::OpenGLWGLPBTextureTarget.
| void CEGUI::OpenGLRenderTarget::deactivate | ( | ) | [virtual] |
Deactivate the render target after having completed rendering.
Implements CEGUI::RenderTarget.
Reimplemented in CEGUI::OpenGLApplePBTextureTarget, CEGUI::OpenGLFBOTextureTarget, CEGUI::OpenGLGLXPBTextureTarget, and CEGUI::OpenGLWGLPBTextureTarget.
| void CEGUI::OpenGLRenderTarget::draw | ( | const GeometryBuffer & | buffer | ) | [virtual] |
Draw geometry from the given GeometryBuffer onto the surface that this RenderTarget represents.
| buffer | GeometryBuffer object holding the geometry that should be drawn to the RenderTarget. |
Implements CEGUI::RenderTarget.
| void CEGUI::OpenGLRenderTarget::draw | ( | const RenderQueue & | queue | ) | [virtual] |
Draw geometry from the given RenderQueue onto the surface that this RenderTarget represents.
| queue | RenderQueue object holding the geometry that should be drawn to the RenderTarget. |
Implements CEGUI::RenderTarget.
| const Rect& CEGUI::OpenGLRenderTarget::getArea | ( | ) | const [virtual] |
Return the area defined for this RenderTarget.
Implements CEGUI::RenderTarget.
| void CEGUI::OpenGLRenderTarget::setArea | ( | const Rect & | area | ) | [virtual] |
Set the area for this RenderTarget. The exact action this function will take depends upon what the concrete class is representing. For example, with a 'view port' style RenderTarget, this should set the area that the view port occupies on the display (or rendering window).
| area | Rect object describing the new area to be assigned to the RenderTarget. |
| InvalidRequestException | May be thrown if the RenderTarget does not support setting or changing its area, or if the area change can not be satisfied for some reason. |
Implements CEGUI::RenderTarget.
1.7.4