a virtual light object for tweaking existing lights in an external 3D rendering context
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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class. More...
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vtkExternalLight * | NewInstance () const |
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses. More...
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virtual void | SetLightIndex (int) |
| Set/Get light index This should be the OpenGL light identifier. More...
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virtual int | GetLightIndex () |
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virtual void | SetReplaceMode (int) |
| Set/Get replace mode This determines how this ExternalLight will be used to tweak parameters on an existing light in the rendering context. More...
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virtual int | GetReplaceMode () |
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void | SetPosition (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetFocalPoint (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetAmbientColor (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetDiffuseColor (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetSpecularColor (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetIntensity (double) override |
| Override Set method to keep a record of changed value. More...
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void | SetConeAngle (double) override |
| Override Set method to keep a record of changed value. More...
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void | SetAttenuationValues (double, double, double) override |
| Override Set method to keep a record of changed value. More...
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void | SetExponent (double) override |
| Override Set method to keep a record of changed value. More...
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void | SetPositional (int) override |
| Override Set method to keep a record of changed value. More...
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virtual bool | GetPositionSet () |
| Check whether value set by user. More...
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virtual bool | GetFocalPointSet () |
| Check whether value set by user. More...
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virtual bool | GetAmbientColorSet () |
| Check whether value set by user. More...
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virtual bool | GetDiffuseColorSet () |
| Check whether value set by user. More...
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virtual bool | GetSpecularColorSet () |
| Check whether value set by user. More...
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virtual bool | GetIntensitySet () |
| Check whether value set by user. More...
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virtual bool | GetConeAngleSet () |
| Check whether value set by user. More...
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virtual bool | GetAttenuationValuesSet () |
| Check whether value set by user. More...
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virtual bool | GetExponentSet () |
| Check whether value set by user. More...
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virtual bool | GetPositionalSet () |
| Check whether value set by user. More...
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vtkLight * | NewInstance () const |
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virtual vtkLight * | ShallowClone () |
| Create a new light object with the same light parameters than the current object (any ivar from the superclasses (vtkObject and vtkObjectBase), like reference counting, timestamp and observers are not copied). More...
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virtual void | Render (vtkRenderer *, int) |
| Abstract interface to renderer. More...
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virtual void | SetAmbientColor (double[3]) |
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virtual double * | GetAmbientColor () |
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virtual void | GetAmbientColor (double data[3]) |
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virtual void | SetDiffuseColor (double[3]) |
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virtual double * | GetDiffuseColor () |
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virtual void | GetDiffuseColor (double data[3]) |
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virtual void | SetSpecularColor (double[3]) |
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virtual double * | GetSpecularColor () |
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virtual void | GetSpecularColor (double data[3]) |
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void | SetColor (double, double, double) |
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void | SetColor (const double a[3]) |
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virtual void | SetPosition (double[3]) |
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virtual double * | GetPosition () |
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virtual void | GetPosition (double data[3]) |
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void | SetPosition (const float *a) |
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virtual void | SetFocalPoint (double[3]) |
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virtual double * | GetFocalPoint () |
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virtual void | GetFocalPoint (double data[3]) |
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void | SetFocalPoint (const float *a) |
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virtual double | GetIntensity () |
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virtual void | SetSwitch (vtkTypeBool) |
| Turn the light on or off. More...
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virtual vtkTypeBool | GetSwitch () |
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virtual void | SwitchOn () |
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virtual void | SwitchOff () |
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virtual vtkTypeBool | GetPositional () |
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virtual void | PositionalOn () |
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virtual void | PositionalOff () |
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virtual double | GetExponent () |
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virtual double | GetConeAngle () |
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virtual void | SetAttenuationValues (double[3]) |
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virtual double * | GetAttenuationValues () |
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virtual void | GetAttenuationValues (double data[3]) |
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virtual void | SetTransformMatrix (vtkMatrix4x4 *) |
| Set/Get the light's transformation matrix. More...
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virtual vtkMatrix4x4 * | GetTransformMatrix () |
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void | GetTransformedPosition (double &a0, double &a1, double &a2) |
| Get the position of the light, modified by the transformation matrix (if it exists). More...
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void | GetTransformedPosition (double a[3]) |
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double * | GetTransformedPosition () |
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void | GetTransformedFocalPoint (double &a0, double &a1, double &a2) |
| Get the focal point of the light, modified by the transformation matrix (if it exists). More...
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void | GetTransformedFocalPoint (double a[3]) |
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double * | GetTransformedFocalPoint () |
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void | SetDirectionAngle (double elevation, double azimuth) |
| Set the position and focal point of a light based on elevation and azimuth. More...
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void | SetDirectionAngle (const double ang[2]) |
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void | DeepCopy (vtkLight *light) |
| Perform deep copy of this light. More...
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virtual void | SetLightType (int) |
| Set/Get the type of the light. More...
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virtual int | GetLightType () |
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void | SetLightTypeToHeadlight () |
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void | SetLightTypeToSceneLight () |
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void | SetLightTypeToCameraLight () |
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int | LightTypeIsHeadlight () |
| Query the type of the light. More...
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int | LightTypeIsSceneLight () |
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int | LightTypeIsCameraLight () |
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virtual void | SetShadowAttenuation (float) |
| Set/Get the shadow intensity By default a light will be completely blocked when in shadow by setting this value to less than 1.0 you can control how much light is attenuated when in shadow. More...
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virtual float | GetShadowAttenuation () |
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virtual vtkInformation * | GetInformation () |
| Set/Get the information object associated with the light. More...
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virtual void | SetInformation (vtkInformation *) |
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on. More...
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virtual void | DebugOff () |
| Turn debugging output off. More...
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bool | GetDebug () |
| Get the value of the debug flag. More...
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag. More...
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virtual void | Modified () |
| Update the modification time for this object. More...
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time. More...
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
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vtkCommand * | GetCommand (unsigned long tag) |
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void | RemoveObserver (vtkCommand *) |
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void | RemoveObservers (unsigned long event, vtkCommand *) |
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void | RemoveObservers (const char *event, vtkCommand *) |
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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vtkTypeBool | HasObserver (unsigned long event) |
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vtkTypeBool | HasObserver (const char *event) |
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f) |
| Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
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template<class U , class T > |
unsigned long | AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f) |
| Allow user to set the AbortFlagOn() with the return value of the callback method. More...
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int | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not. More...
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int | InvokeEvent (const char *event, void *callData) |
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int | InvokeEvent (unsigned long event) |
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int | InvokeEvent (const char *event) |
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const char * | GetClassName () const |
| Return the class name as a string. More...
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virtual void | Delete () |
| Delete a VTK object. More...
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virtual void | FastDelete () |
| Delete a reference to this object. More...
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream. More...
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
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virtual void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object). More...
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object). More...
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int | GetReferenceCount () |
| Return the current reference count of this object. More...
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void | SetReferenceCount (int) |
| Sets the reference count. More...
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void | PrintRevisions (ostream &) |
| Legacy. More...
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a virtual light object for tweaking existing lights in an external 3D rendering context
vtkExternalLight is a virtual light object for tweaking existing lights in an external 3D rendering context. It provides a mechanism to adjust and control parameters of existing lights in an external OpenGL context.
It provides methods to locate and point the light, and set its brightness and color. In addition to the basic infinite distance point light source attributes, you can also specify the light attenuation values and cone angle. These attributes are only used if the light is a positional light.
By default, vtkExternalLight overrides specific light parameters as set by the user. Setting the ReplaceMode to ALL_PARAMS, will set all the light parameter values to the ones set in vtkExternalLight.
- Warning
- Use the vtkExternalLight object to tweak parameters of lights created in the external context. This class does NOT create new lights in the scene.
- Example:
- Usage example for vtkExternalLight in conjunction with vtkExternalOpenGLRenderer and ExternalVTKWidget
- See also
- vtkExternalOpenGLRenderer ExternalVTKWidget
Definition at line 61 of file vtkExternalLight.h.