SoShaderStateMatrixParameter - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin

NAMESoShaderStateMatrixParameter − The SoShaderStateMatrixParameter class is used to define a matrix as shader parameter whose content is derived from the traversal state​.

SYNOPSIS
#include <Inventor/nodes/SoShaderParameter​.h> Inherits SoUniformShaderParameter​.

Public Typesenum MatrixType { MODELVIEW, PROJECTION, TEXTURE, MODELVIEW_PROJECTION }
enum MatrixTransform { IDENTITY, TRANSPOSE, INVERSE, INVERSE_TRANSPOSE }

Public Member Functionsvirtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase​. This is used for run-time type checking and 'downward' casting​.
virtual void updateParameter (SoGLShaderObject *shaderObject)
Updates the shader parameter in the OpenGL state with the content of the value field​.
virtual void updateValue (SoState *state)

Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)

Public AttributesSoSFEnum matrixType
SoSFEnum matrixTransform

Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const

Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)

Protected AttributesSbMatrix value

Additional Inherited Members

Detailed DescriptionThe SoShaderStateMatrixParameter class is used to define a matrix as shader parameter whose content is derived from the traversal state​. Unlike other parameter classes, SoShaderStateMatrixParameter does not have a value field​. The value member is protected and updated automatically from the traversal state​.

Member Enumeration Documentation

enum SoShaderStateMatrixParameter::MatrixTypeDefines the different matrix types​.

enum SoShaderStateMatrixParameter::MatrixTransformDefines different transformations that can be applied to a matrix​.

Member Function Documentation

SoType SoShaderStateMatrixParameter::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 } }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 SoUniformShaderParameter​.

const SoFieldData * SoShaderStateMatrixParameter::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 SoUniformShaderParameter​.

void SoShaderStateMatrixParameter::updateValue (SoState * state) [virtual]Updates matrix value from state

Member Data Documentation

SoSFEnum SoShaderStateMatrixParameter::matrixTypeDefines the matrix type value for the uniform shader variable​.

SoSFEnum SoShaderStateMatrixParameter::matrixTransformDefines a transformation that is applied to the matrix value​. The default value of IDENTITY keeps the value unchanged​.

AuthorGenerated automatically by Doxygen for Coin from the source code​.
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Johanes Gumabo
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