SoShaderObject - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESoShaderObject
SYNOPSIS
#include <Inventor/nodes/SoShaderObject.h> Inherits SoNode. Inherited by SoFragmentShader, SoGeometryShader, and SoVertexShader.
Public Typesenum SourceType { ARB_PROGRAM, CG_PROGRAM, GLSL_PROGRAM, FILENAME }
Public Member Functionsvirtual SoType getTypeId (void) const
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 Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
Public AttributesSoSFBool isActive
SoSFEnum sourceType
SoSFString sourceProgram
SoMFNode parameter
Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
SoShaderObject (void)
virtual ~SoShaderObject ()
virtual SbBool readInstance (SoInput *in, unsigned short flags)
Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed DescriptionThe 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
SoType SoShaderObject::getTypeId (void) const [virtual]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: void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) {
SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type
}
}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. Implements SoBase. Reimplemented in SoVertexShader, SoGeometryShader, and SoFragmentShader.
const SoFieldData * SoShaderObject::getFieldData (void) const [protected], [virtual]Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL. Reimplemented from SoFieldContainer. Reimplemented in SoVertexShader, SoGeometryShader, and SoFragmentShader.
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.
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 SoFragmentShader::isSupported(), SoGeometryShader::isSupported(), SoVertexShader::isSupported(), and 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().
AuthorGenerated automatically by Doxygen for Coin from the source code. 0
Johanes Gumabo
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