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SoGLColorIndexElement(3) | Coin | SoGLColorIndexElement(3) |
NAME¶
SoGLColorIndexElement - The SoGLColorIndexElement class sets the current OpenGL color. This element is only used when the OpenGL canvas is in colorindex mode, ie where colors for individual pixels are fetched from a color lookup table ('CLUT'). The usual thing to do is to set up a canvas in RGBA truecolor mode.SYNOPSIS¶
#include <Inventor/elements/SoGLColorIndexElement.h> Inherits SoReplacedElement.Public Member Functions¶
virtual void init (SoState *state)
Static Public Member Functions¶
static SoType getClassTypeId (void)
Protected Member Functions¶
virtual ~SoGLColorIndexElement ()
Additional Inherited Members¶
Detailed Description¶
The SoGLColorIndexElement class sets the current OpenGL color. This element is only used when the OpenGL canvas is in colorindex mode, ie where colors for individual pixels are fetched from a color lookup table ('CLUT'). The usual thing to do is to set up a canvas in RGBA truecolor mode. One common use for colorindex mode OpenGL canvases is to use one in the overlay planes (which are usually limited to only 2 or 4 available colors), if supported by the OpenGL hardware and / or driver. See also:SoColorIndex
Constructor & Destructor Documentation¶
SoGLColorIndexElement::~SoGLColorIndexElement () [protected], [virtual]¶
The destructor.Member Function Documentation¶
void * SoGLColorIndexElement::createInstance (void) [static]¶
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.SbBool SoGLColorIndexElement::isColorIndexMode ( SoState *state) [static]¶
Returns TRUE if the current GL context is in color index mode.void SoGLColorIndexElement::init ( SoState *state) [virtual]¶
This function initializes the element type in the given SoState. It is called for the first element of each enabled element type in SoState objects. Reimplemented from SoReplacedElement.void SoGLColorIndexElement::set ( SoState *conststate, SoNode *constnode, const int32_tnumindices, const int32_t *constindices) [static]¶
Sets current color indices.const SoGLColorIndexElement * SoGLColorIndexElement::getInstance (SoState *state) [static]¶
Returns the current element.int32_t SoGLColorIndexElement::getNum (void) const¶
Returns number of color indices in element.Author¶
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