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Man Pages


Manual Reference Pages  -  SOVERTEXPROPERTY (3)

NAME

SoVertexProperty — vertex property node

CONTENTS

Inherits From
Synopsis
Description
Fields
Methods
Action Behavior
File Format/defaults
See Also

INHERITS FROM

SoBase > SoFieldContainer > SoNode > SoVertexProperty

SYNOPSIS

#include <Inventor/nodes/SoVertexProperty.h>

enum Binding {     SoVertexProperty::OVERALL    
                             SoVertexProperty::OVERALL    Whole object has same material/normal    
SoVertexProperty::PER_PART    
                             SoVertexProperty::PER_PART   One material/normal for each part of object    
SoVertexProperty::PER_PART_INDEXED    
                             SoVertexProperty::PER_PART_INDEXED One material/normal for each part, indexed    
SoVertexProperty::PER_FACE    
                             SoVertexProperty::PER_FACE   One material/normal for each face of object    
SoVertexProperty::PER_FACE_INDEXED    
                             SoVertexProperty::PER_FACE_INDEXED One material/normal for each face, indexed    
SoVertexProperty::PER_VERTEX    
                             SoVertexProperty::PER_VERTEX One material/normal for each vertex of object    
SoVertexProperty::PER_VERTEX_INDEXED    
                             SoVertexProperty::PER_VERTEX_INDEXED One material/normal for each vertex, indexed
}

Fields from class SoVertexProperty:

    SoMFVec3f    
                    
SoMFVec3f            vertex    
SoMFVec3f    
                    
SoMFVec3f            normal    
SoMFUInt32    
                    
SoMFUInt32           orderedRGBA    
SoMFVec2f    
                    
SoMFVec2f            texCoord    
SoSFEnum    
                    
SoSFEnum             normalBinding    
SoSFEnum    
                    
SoSFEnum             materialBinding

Methods from class SoVertexProperty:

       
                    
                     SoVertexProperty()

Methods from class SoNode:

    void    
                    
void                 setOverride(SbBool state)    
SbBool    
                    
SbBool               isOverride() const    
SoNode *    
                    
SoNode *             copy(SbBool copyConnections = FALSE) const    
virtual SbBool    
                    
virtual SbBool       affectsState() const    
static SoNode *    
                    
static SoNode *      getByName(const SbName &name)    
static int    
                    
static int           getByName(const SbName &name, SoNodeList &list)    
static SoType    
                    
static SoType        getClassTypeId()

Methods from class SoFieldContainer:

    void    
                    
void                 setToDefaults()    
SbBool    
                    
SbBool               hasDefaultValues() const    
SbBool    
                    
SbBool               fieldsAreEqual(const SoFieldContainer *fc) const    
void    
                    
void                 copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)    
SbBool    
                    
SbBool               set(const char *fieldDataString)    
void    
                    
void                 get(SbString &fieldDataString)    
virtual int    
                    
virtual int          getFields(SoFieldList &resultList) const    
virtual SoField *    
                    
virtual SoField *    getField(const SbName &fieldName) const    
SbBool    
                    
SbBool               getFieldName(const SoField *field, SbName &fieldName) const    
SbBool    
                    
SbBool               isNotifyEnabled() const    
SbBool    
                    
SbBool               enableNotify(SbBool flag)

Methods from class SoBase:

    void    
                    
void                 ref()    
void    
                    
void                 unref() const    
void    
                    
void                 unrefNoDelete() const    
void    
                    
void                 touch()    
virtual SoType    
                    
virtual SoType       getTypeId() const    
SbBool    
                    
SbBool               isOfType(SoType type) const    
virtual void    
                    
virtual void         setName(const SbName &name)    
virtual SbName    
                    
virtual SbName       getName() const

DESCRIPTION

This property node may be used to efficiently specify coordinates, normals, texture coordinates, colors, transparency values, material binding and normal binding for vertex-based shapes, i.e., shapes of class SoVertexShape. An SoVertexProperty node can be used as a child of a group node in a scene graph, in which case the properties it specifies are inherited by subsequent shape nodes in the graph. It can also be directly referenced as the VertexProperty SoSFField of a vertex-based shape, bypassing scene graph inheritance.

When directly referenced by a VertexProperty SoSFField of a vertex-based shape, the SoVertexProperty node is the most efficient way of specifying vertex-based shapes. Use of the directly referenced SoVertexProperty node results in significantly faster scene rendering than scene graph inheritance of vertex properties, provided all required vertex properties are specified in the SoVertexProperty node.

Because the class SoVertexProperty is derived from SoNode, a vertex property node can be inserted as a child node in a scene graph. When inserted as a node in a scene graph, the SoVertexProperty node is traversed as any other property node and the properties it specifies are inherited by subsequent shape nodes in the scene graph. It specifies the current material and normal bindings, and can be used to specify the current 3D coordinates, the current normals, the current texture coordinates, the current diffuse colors, and the current transparencies.

All multiple-valued fields in the SoVertexProperty node are optional. If a field is not present (i.e. if it has 0 values), then shapes that require the missing information are required to obtain it from the current traversal state. However, users are cautioned that, for optimal performance, the vertex property node should be referenced as the VertexProperty field of an SoVertexShape, and should specify in its fields all values required to render that shape.

The various fields in a vertex property node can be used in place of corresponding fields in other property nodes, as follows: The vertex field contains 3D coordinates, as in the point field of an SoCoordinate3 node. The normal field contains normal vectors, as in the vector field of the SoNormal node. The orderedRGBA field contains packed colors in the hexadecimal format 0xrrggbbaa, where rr is the red value (between 00 and 0xFF hex) gg is the green value (between 00 and 0xFF hex) bb is the blue value (between 00 and 0xFF hex) aa is the alpha value (between 00 = transparent and 0xFF = opaque). The packed colors are equivalent to an SoPackedColor node, and provide values for both diffuse color and transparency. The texCoord field replaces the point field of the SoTextureCoordinate2 node.

If the transparency type is SoGLRenderAction::SCREEN_DOOR, only the first transparency value will be used. With other transparency types, multiple transparencies will be used.

The materialBinding field replaces the value field of the SoMaterialBinding node. The materialBinding field in a directly referenced SoVertexProperty node has no effect unless there is a nonempty orderedRGBA field, in which case the material binding specifies the assignment of diffuse colors and alpha values to the shape. The materialBinding field can take as value any of the material bindings supported by Inventor.

The normalBinding field replaces the value field of the SoNormalBinding node. The normalBinding field of a directly referenced SoVertexProperty node has no effect unless there is a nonempty normal field, in which case the normal binding specifies the assignment of normal vectors to the shape. The value of the normalBinding field can be any of the normal bindings supported by Inventor.

FIELDS

    SoMFVec3f    
                    
SoMFVec3f            vertex
vertex coordinate(s).

    SoMFVec3f    
                    
SoMFVec3f            normal
normal vector(s).

    SoMFUInt32    
                    
SoMFUInt32           orderedRGBA
packed color(s), including transparencies.

    SoMFVec2f    
                    
SoMFVec2f            texCoord
texture coordinate(s).

    SoSFEnum    
                    
SoSFEnum             normalBinding
normal binding.

    SoSFEnum    
                    
SoSFEnum             materialBinding
material binding.

METHODS

       
                    
                     SoVertexProperty()
Creates an SoVertexProperty node with default settings.

ACTION BEHAVIOR

SoGLRenderAction, SoCallbackAction, SoPickAction
When traversed in a scene graph, sets coordinates, normals, texture coordinates, diffuse colors, transparency, normal binding and material binding in current traversal state. If not traversed, has no effect on current traversal state associated with action. The normalBinding field has no effect if there are no normals. The materialBinding has no effect if there are no packed colors.

SoGetBoundingBoxAction
When traversed in a scene graph, sets coordinates in current traversal state. If not traversed, has no effect on current traversal state associated with action.

FILE FORMAT/DEFAULTS

VertexProperty {



vertex           [  ]
normal           [  ]
texCoord         [  ]
orderedRGBA      [  ]
materialBinding  OVERALL
normalBinding    PER_VERTEX_INDEXED


}

SEE ALSO

SoIndexedTriangleStripSet SoIndexedFaceSet SoIndexedLineSet SoTriangleStripSet SoLineSet SoFaceSet SoPointSet SoQuadMesh SoVertexShape SoIndexedShape SoNonindexedShape

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