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SoShaderObject.3coin2

NAME

SoShaderObject -

SYNOPSIS

#include <Inventor/nodes/SoShaderObject.h>

Inherits SoNode.

Inherited by SoFragmentShader, SoGeometryShader, and SoVertexShader.

Public Types

enum SourceType { ARB_PROGRAM, CG_PROGRAM, GLSL_PROGRAM, FILENAME }

Public Member Functions

virtual void GLRender (SoGLRenderAction *action)

virtual void search (SoSearchAction *action)

void updateParameters (SoState *state)

SourceType getSourceType (void) const

SbString getSourceProgram (void) const

Static Public Member Functions

static void initClass (void)

Public Attributes

SoSFBool isActive

SoSFEnum sourceType

SoSFString sourceProgram

SoMFNode parameter

Protected Member Functions

SoShaderObject (void)

virtual ~SoShaderObject ()

virtual SbBool readInstance (SoInput *in, unsigned short flags)

Detailed Description

The SoShaderObject class is the superclass for all shader classes in Coin.

See Shaders in Coin for more information on how to set up a scene graph with shaders.

See also:

SoShaderProgram

Since:

Coin 2.5

Member Enumeration Documentation

enum SoShaderObject::SourceTypeUsed for enumerating the shader types in sourceProgram.

Enumerator:

ARB_PROGRAM

Specifies an ARB shader.

CG_PROGRAM

Specifies a Cg shader program.

GLSL_PROGRAM

Specifies a GLSL program.

FILENAME

Shader should be loaded from the file in sourceProgram.

Constructor & Destructor Documentation

SoShaderObject::SoShaderObject (void) [protected]Constructor.

References ARB_PROGRAM, CG_PROGRAM, FILENAME, GLSL_PROGRAM, isActive, parameter, SoField::setDefault(), SoMField::setNum(), sourceProgram, and sourceType.

SoShaderObject::~SoShaderObject () [protected, virtual]Destructor

Member Function Documentation

void SoShaderObject::initClass (void) [static]Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoNode.

Reimplemented in SoVertexShader, SoFragmentShader, and SoGeometryShader.

void SoShaderObject::GLRender (SoGLRenderAction * action) [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 SoNode.

Reimplemented in SoGeometryShader.

Referenced by SoGeometryShader::GLRender().

void SoShaderObject::search (SoSearchAction * action) [virtual]Action method for SoSearchAction.

Compares the search criteria from the action to see if this node is a match. Searching is done by matching up all criteria set up in the SoSearchAction -- if any of the requested criteria is a miss, the search is not deemed successful for the node.

See also:

SoSearchAction

Reimplemented from SoNode.

References SoMField::getNum(), SoAction::getPathCode(), SoSearchAction::isFound(), parameter, SoAction::popCurPath(), SoAction::pushCurPath(), and SoNode::search().

void SoShaderObject::updateParameters (SoState * state)Used internally to update shader paramters.

References SoFieldContainer::get().

SoShaderObject::SourceType SoShaderObject::getSourceType (void) constReturns the shader type detected in sourceProgram.

SbString SoShaderObject::getSourceProgram (void) constReturns the actual shader program.

SbBool SoShaderObject::readInstance (SoInput * in, unsigned short flags) [protected, virtual]This method is mainly intended for internal use during file import operations.

It reads a definition of an instance from the input stream in. The input stream state points to the start of a serialized / persistant representation of an instance of this class type.

TRUE or FALSE is returned, depending on if the instantiation and configuration of the new object of this class type went ok or not. The import process should be robust and handle corrupted input streams by returning FALSE.

flags is used internally during binary import when reading user extension nodes, group nodes or engines.

Reimplemented from SoNode.

References SoInput::getDirectories(), and SoNode::readInstance().

Member Data Documentation

SoSFBool SoShaderObject::isActiveEnabled/disables the shader. Default value is TRUE.

Referenced by SoGeometryShader::GLRender(), and SoShaderObject().

SoSFEnum SoShaderObject::sourceTypeThe type of shader.

Referenced by SoShaderObject().

SoSFString SoShaderObject::sourceProgramThe shader program, or a file name if the shader should be loaded from a file. If the shader is loaded from a file, the shader type is identified by the file extension. .glsl for GLSL shaders, .cg for Cg shaders, and .vp and .fp for ARB shaders.

Referenced by SoShaderObject().

SoMFNode SoShaderObject::parameterThe shader program parameters.

Referenced by search(), and SoShaderObject().

Author

Generated automatically by Doxygen for Coin from the source code.