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| virtual void | init (SoState *state) |
| | Initializes element.
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| virtual void | push (SoState *state) |
| | Overrides push() method to copy values from next instance in the stack.
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| virtual void | pop (SoState *state, const SoElement *prevTopElement) |
| | Override pop() method so side effects can occur in GL.
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| virtual void | print (FILE *fp) const |
| | Prints element (for debugging)
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| virtual bool | matches (const SoElement *elt) const |
| | Comparison based on value of int32_ts.
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| virtual SoElement * | copyMatchInfo () const |
| | Copy method, takes care copying the data.
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| virtual void | setElt (int32_t value) |
| | Virtual set that subclasses can override to implement side-effect behaviors.
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| virtual void | print (FILE *fp) const |
| | Prints element (for debugging)
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| virtual void | init (SoState *state) |
| | Initializes element.
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| virtual void | push (SoState *state) |
| | Pushes/pops element.
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| virtual void | pop (SoState *state, const SoElement *prevTopElement) |
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| virtual void | print (FILE *fp) const |
| | Prints element (for debugging)
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| virtual bool | matches (const SoElement *elt) const =0 |
| | Returns TRUE if the element matches another element (of the same class, presumably) with respect to cache validity.
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| virtual SoElement * | copyMatchInfo () const =0 |
| | Create a copy that we can put in a cache used list and call matches() on later.
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| SoType | getTypeId () const |
| | Returns type identifier for element instance.
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| int | getStackIndex () const |
| | Returns the stack index for an element instance.
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| void | setDepth (int dpth) |
| | Sets stuff in an element instance.
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| void | setNext (SoElement *nxt) |
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| void | setNextInStack (SoElement *nxt) |
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| void | setNextFree (SoElement *nxt) |
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| int | getDepth () const |
| | Returns stuff from element instance.
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| SoElement * | getNext () const |
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| virtual | ~SoElement () |
| | Destructor.
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| static int | increment (SoState *state) |
| | Increments the current light id.
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| static int | increment (SoState *state, SoNode *) |
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| static int | get (SoState *state) |
| | Returns current light id from the state.
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| static int | getDefault () |
| | Returns the default light id.
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| static int | getMaxGLSources () |
| | Returns the maximum number of concurrent light sources supported by GL implementation.
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| static void | initClass () |
| | Initializes the SoGLLightIdElement class.
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| static void | initClass () |
| | Initializes the SoInt32Element class.
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| static void | set (int stackIndex, SoState *state, int32_t value) |
| | Set value.
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| static void | set (int stackIndex, SoState *state, SoNode *, int32_t value) |
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| static void | set (int stackIndex, SoState *state, SoNode *, long value) |
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| static int32_t | get (int stackIndex, SoState *state) |
| | Get value.
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| static SoType | getClassTypeId () |
| | Returns type identifier for SoElement class.
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| static void | initElements () |
| | Initialize ALL Inventor element classes.
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| static void | initClass () |
| | Initializes the SoElement class.
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| static int | getNumStackIndices () |
| | Returns the number of stack indices allocated.
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| static SoType | getIdFromStackIndex (int stackIndex) |
| | Returns the id for the element with the given stack index.
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The first light active in a scene has id 0, the next has 1, and so on. This element can be used to determine how many lights are currently active. The initial value of this element is -1 to indicate that there are no lights active.
Note that even though the effects of this element accumulate (each light source increments the id), it is derived from SoInt32Element. This is because each call to increment() effectively does a "get" of the current top instance, so caching knows about the dependency of each instance on the previous one.
Definition at line 79 of file SoGLLightIdElement.h.
Public Member Functions inherited from SoInt32Element