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SoMaterialBinding(3) | Coin | SoMaterialBinding(3) |
NAME¶
SoMaterialBinding - The SoMaterialBinding class is a node for setting up how materials are mapped to shapes. The material binding specified in nodes of this type decides how the material values of SoMaterial nodes are mapped on the builtin geometry shape nodes.SYNOPSIS¶
#include <Inventor/nodes/SoMaterialBinding.h> Inherits SoNode.Public Types¶
enum Binding { OVERALL = SoMaterialBindingElement::OVERALL, PER_PART = SoMaterialBindingElement::PER_PART, PER_PART_INDEXED = SoMaterialBindingElement::PER_PART_INDEXED, PER_FACE = SoMaterialBindingElement::PER_FACE, PER_FACE_INDEXED = SoMaterialBindingElement::PER_FACE_INDEXED, PER_VERTEX = SoMaterialBindingElement::PER_VERTEX, PER_VERTEX_INDEXED = SoMaterialBindingElement::PER_VERTEX_INDEXED, DEFAULT = OVERALL, NONE = OVERALL }
Public Member Functions¶
virtual SoType getTypeId (void) const
Static Public Member Functions¶
static SoType getClassTypeId (void)
Public Attributes¶
SoSFEnum value
Protected Member Functions¶
virtual const SoFieldData * getFieldData (void) const
Static Protected Member Functions¶
static const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members¶
Detailed Description¶
The SoMaterialBinding class is a node for setting up how materials are mapped to shapes. The material binding specified in nodes of this type decides how the material values of SoMaterial nodes are mapped on the builtin geometry shape nodes. The exact meaning of a binding depends on what particular shape type a material or a set of materials are applied to. Here is a very simple usage example:#Inventor V2.1 ascii Separator { Coordinate3 { point [ 0 0 0, 1 0 0, 1 1 0 ] } Material { diffuseColor [ 1 0 0, 1 1 0, 0 0 1 ] } MaterialBinding { value PER_VERTEX_INDEXED } IndexedFaceSet { coordIndex [ 0, 1, 2, -1 ] materialIndex [ 0, 1, 0 ] } }With SoMaterialBinding::value set to PER_VERTEX_INDEXED above, the material indices will be taken from the SoIndexedFaceSet::materialIndex field when rendering. If SoMaterialBinding::value was set to PER_VERTEX_INDEXED as above, and the SoIndexedFaceSet::materialIndex was undefined or empty, indices would implicitly be taken from the SoIndexedFaceSet::coordIndex field. If SoMaterialBinding::value is set to PER_VERTEX, colors will be fetched in a monotonically increasing manner from the SoMaterial::diffuseColor field, starting at index 0. FILE FORMAT/DEFAULTS:
MaterialBinding { value OVERALL }See also:
SoMaterial
Member Enumeration Documentation¶
enum SoMaterialBinding::Binding¶
Enumeration of available types of material binding. Enumerator- OVERALL
- Apply the same material to the complete shape.
- PER_PART
- Get a new material from the pool of material values for each part of the shape, where the definition of a part depends on the shape type.
- PER_PART_INDEXED
- Get a new material from the pool of material values for each part of the shape, where the definition of a part depends on the shape type.
- PER_FACE
- Get a new material from the pool of material values for each polygon face of the shape.
- PER_FACE_INDEXED
- Get a new material from the pool of material values for each polygon face of the shape.
- PER_VERTEX
- Get a new material from the pool of material values for each polygon, line or point vertex of the shape.
- PER_VERTEX_INDEXED
- Get a new material from the pool of material values for each polygon, line or point vertex of the shape.
- DEFAULT
- Obsolete. Don't use this value.
- NONE
- Obsolete. Don't use this value.
Constructor & Destructor Documentation¶
SoMaterialBinding::SoMaterialBinding (void)¶
Constructor.SoMaterialBinding::~SoMaterialBinding () [protected], [virtual]¶
Destructor.Member Function Documentation¶
SoType SoMaterialBinding::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. Implements SoBase.
const SoFieldData * SoMaterialBinding::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.void SoMaterialBinding::doAction ( SoAction *action) [virtual]¶
This function performs the typical operation of a node for any action. Reimplemented from SoNode.void SoMaterialBinding::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.void SoMaterialBinding::callback ( SoCallbackAction *action) [virtual]¶
Action method for SoCallbackAction. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph. Reimplemented from SoNode.void SoMaterialBinding::pick ( SoPickAction *action) [virtual]¶
Action method for SoPickAction. Does common processing for SoPickAction action instances. Reimplemented from SoNode.void SoMaterialBinding::getPrimitiveCount ( SoGetPrimitiveCountAction *action) [virtual]¶
Action method for the SoGetPrimitiveCountAction. Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action. Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables. Reimplemented from SoNode.Member Data Documentation¶
SoSFEnum SoMaterialBinding::value¶
The material binding to use for subsequent shape nodes in the scene graph. The default binding is SoMaterialBinding::OVERALL.Author¶
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