VRS::ShadowTechniqueGL Class Reference
#include <vrs/opengl/shadowtechniquegl.h>
Public Member Functions | |
| ShadowTechniqueGL () | |
| virtual bool | canBeUsed (Engine *) const |
| virtual void | start (Engine *) |
| virtual void | stop (Engine *) |
| virtual void | activatePass (int pass) |
| virtual bool | usesPass (int pass) const |
| virtual bool | preparePass (Engine *) |
| virtual void | finishPass (Engine *) |
| virtual void | nextPass (Engine *) |
| virtual bool | prepareEval (Engine *, const Shape *) |
| virtual void | finishEval (Engine *, const Shape *) |
| VRS_TYPEINFO (ShadowTechniqueGL, TechniqueGL) | |
| VRS_SERIALIZABLE (ShadowTechniqueGL) | |
Static Public Member Functions | |
| static void | install (ShadowTechniqueTemplateGL *) |
| static bool | uninstall (ShadowTechniqueTemplateGL *) |
| static Iterator< SO < ShadowTechniqueTemplateGL > > * | shadowTechniques () |
| Add/remove a shadow technique. | |
Constructor & Destructor Documentation
| VRS::ShadowTechniqueGL::ShadowTechniqueGL | ( | ) |
Factory class for concreate shadow technique implementations. The shadow techniques, that must be derived from the ShadowTechniqueTemplateGL-class, must register themselves to this class. Then, in canBeUsed, the best matching technique is chosen for shadow computation. All technique- specific methods then are forwarded to the shadow technique.
The task of a ShadowTechniqueGL is to render a shadow on shapes with active shadowed attribute, caused by other shapes with active shadow casting attribute, regarding the position and intensity of the light source given in those shadow-related attributes. Hang an ShadowTechniqueGL-object in the scene graph if you want to have shadows.
Member Function Documentation
| static void VRS::ShadowTechniqueGL::install | ( | ShadowTechniqueTemplateGL * | ) | [static] |
| static bool VRS::ShadowTechniqueGL::uninstall | ( | ShadowTechniqueTemplateGL * | ) | [static] |
| static Iterator<SO<ShadowTechniqueTemplateGL> >* VRS::ShadowTechniqueGL::shadowTechniques | ( | ) | [static] |
Add/remove a shadow technique.
| virtual bool VRS::ShadowTechniqueGL::canBeUsed | ( | Engine * | ) | const [virtual] |
Iterates through installed shadow techniques, looks whether a technique can be found that suits the hardware, sets the realShadowTechnique_ as shadow technique that is used for shadow evaluation (hopefully the best matching technique), and returns true when a suitable technique has been found.
canBeUsed must be only called if realShadowTechnique_ has not yet been started, or is already stopped, else an assertion will occur.
Reimplemented from VRS::Technique.
| virtual void VRS::ShadowTechniqueGL::start | ( | Engine * | ) | [virtual] |
forwarded to realShadowTechnique_
Reimplemented from VRS::Technique.
| virtual void VRS::ShadowTechniqueGL::stop | ( | Engine * | ) | [virtual] |
forwarded to realShadowTechnique_
Reimplemented from VRS::Technique.
| virtual void VRS::ShadowTechniqueGL::activatePass | ( | int | pass | ) | [virtual] |
forwarded to realShadowTechnique_
Reimplemented from VRS::Technique.
| virtual bool VRS::ShadowTechniqueGL::usesPass | ( | int | pass | ) | const [virtual] |
forwarded to realShadowTechnique_
Reimplemented from VRS::Technique.
| virtual bool VRS::ShadowTechniqueGL::preparePass | ( | Engine * | ) | [virtual] |
forwarded to realShadowTechnique_
Implements VRS::Technique.
| virtual void VRS::ShadowTechniqueGL::finishPass | ( | Engine * | ) | [virtual] |
forwarded to realShadowTechnique_
Implements VRS::Technique.
| virtual void VRS::ShadowTechniqueGL::nextPass | ( | Engine * | ) | [virtual] |
forwarded to realShadowTechnique_
Reimplemented from VRS::Technique.
forwarded to realShadowTechnique_
Implements VRS::Technique.
forwarded to realShadowTechnique_
Implements VRS::Technique.
| VRS::ShadowTechniqueGL::VRS_TYPEINFO | ( | ShadowTechniqueGL | , | |
| TechniqueGL | ||||
| ) |
| VRS::ShadowTechniqueGL::VRS_SERIALIZABLE | ( | ShadowTechniqueGL | ) |
The documentation for this class was generated from the following file: