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The SoGeometryShader class is used for loading geometry shader programs. More...
#include <Inventor/nodes/SoGeometryShader.h>
Public Types | |
enum | InputType { POINTS_IN , LINES_IN , TRIANGLES_IN } |
enum | OutputType { POINTS_OUT , LINE_STRIP_OUT , TRIANGLE_STRIP_OUT } |
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enum | SourceType { ARB_PROGRAM , CG_PROGRAM , GLSL_PROGRAM , FILENAME } |
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enum | NodeType { INVENTOR = 0x0000 , VRML1 = 0x0001 , VRML2 = 0x0002 , INVENTOR_1 = 0x0004 , INVENTOR_2_0 = 0x0008 , INVENTOR_2_1 = 0x0010 , INVENTOR_2_5 = 0x0020 , INVENTOR_2_6 = 0x0040 , COIN_1_0 = 0x0080 , COIN_2_0 = 0x0100 , EXTENSION = 0x0200 , COIN_2_2 = 0x0400 , COIN_2_3 = 0x0800 , COIN_2_4 = 0x1000 , INVENTOR_5_0 = 0x2000 , COIN_2_5 = 0x4000 } |
Public Attributes | |
SoSFEnum | inputType |
SoSFEnum | outputType |
SoSFInt32 | maxEmit |
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SoSFBool | isActive |
SoSFEnum | sourceType |
SoSFString | sourceProgram |
SoMFNode | parameter |
Protected Member Functions | |
virtual const SoFieldData * | getFieldData (void) const |
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SoShaderObject (void) | |
virtual | ~SoShaderObject () |
virtual SbBool | readInstance (SoInput *in, unsigned short flags) |
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SoNode (void) | |
virtual | ~SoNode () |
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SoFieldContainer (void) | |
~SoFieldContainer () | |
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SoBase (void) | |
virtual | ~SoBase () |
virtual void | destroy (void) |
SbBool | hasMultipleWriteRefs (void) const |
SbBool | writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const |
void | writeFooter (SoOutput *out) const |
virtual const char * | getFileFormatName (void) const |
Static Protected Member Functions | |
static const SoFieldData ** | getFieldDataPtr (void) |
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static const SoFieldData ** | getFieldDataPtr (void) |
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static const SoFieldData ** | getFieldDataPtr (void) |
static void | setNextActionMethodIndex (int index) |
static int | getNextActionMethodIndex (void) |
static void | incNextActionMethodIndex (void) |
static void | setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask) |
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static uint32_t | getCurrentWriteCounter (void) |
static void | staticDataLock (void) |
static void | staticDataUnlock (void) |
Additional Inherited Members | |
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enum | BaseFlags { IS_ENGINE = 0x01 , IS_GROUP = 0x02 } |
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uint32_t | uniqueId |
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SbBool | isBuiltIn |
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static uint32_t | nextUniqueId = 0 |
static int | nextActionMethodIndex = 0 |
The SoGeometryShader class is used for loading geometry shader programs.
See Shaders in Coin for more information on how to set up a scene graph with shaders.
FILE FORMAT/DEFAULTS:
SoGeometryShader::SoGeometryShader | ( | void | ) |
Constructor.
References inputType, LINE_STRIP_OUT, LINES_IN, maxEmit, outputType, POINTS_IN, POINTS_OUT, and TRIANGLES_IN.
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virtual |
Destructor.
Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.
Usage example:
For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.
For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.
Reimplemented from SoShaderObject.
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protectedvirtual |
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL
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Reimplemented from SoShaderObject.
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virtual |
Action method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.
Reimplemented from SoShaderObject.
References SoAction::getState(), SoShaderObject::GLRender(), inputType, SoShaderObject::isActive, LINE_STRIP_OUT, LINES_IN, maxEmit, outputType, POINTS_IN, POINTS_OUT, SoDebugError::post(), and TRIANGLES_IN.
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static |
Returns a boolean indicating whether the requested source type is supported by the OpenGL driver or not.
Beware: To get a correct answer, a valid OpenGL context must be available.
References SoShaderObject::ARB_PROGRAM, SoShaderObject::CG_PROGRAM, SoShaderObject::GLSL_PROGRAM, and SoShaderObject::sourceType.
SoSFEnum SoGeometryShader::inputType |
The type of geometry used as input to the shader. Default value is TRIANGLES_IN.
Referenced by GLRender(), and SoGeometryShader().
SoSFEnum SoGeometryShader::outputType |
The type of geometry generated from the shader. Default value is TRIANGLE_FAN_OUT.
Referenced by GLRender(), and SoGeometryShader().
SoSFInt32 SoGeometryShader::maxEmit |
The maximum number of vertices emitted from the shader. Default value is 8. This corresponds to the GL_GEOMETRY_VERTICES_OUT_EXT enum.
Referenced by GLRender(), and SoGeometryShader().
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