Packageflash.display3D
Classpublic final class IndexBuffer3D
InheritanceIndexBuffer3D Inheritance Object

Language version: ActionScript 3.0
Runtime version: AIR 3

IndexBuffer3D is used to represent lists of vertex indices comprising graphic elements retained by the graphics subsystem.

Indices managed by an IndexBuffer3D object may be used to select vertices from a vertex stream. Indices are 16-bit unsigned integers. The maximum allowable index value is 65535 (0xffff). The graphics subsystem does not retain a reference to vertices provided to this object. Data uploaded to this object may be modified or discarded without affecting the stored values.

IndexBuffer3D cannot be instantiated directly. Create instances by using Context3D::CreateIndexBuffer()

See also

flash.display.Context3D.createIndexBuffer()
flash.display.Context3D.drawTriangles()

Public Properties
 PropertyDefined by
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined by
  
dispose():void
Free all native GPU resources associated with this object.
IndexBuffer3D
 Inherited
hasOwnProperty(name:String):Boolean
Indicates whether an object has a specified property defined.
Object
 Inherited
isPrototypeOf(theClass:Object):Boolean
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
propertyIsEnumerable(name:String):Boolean
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
toLocaleString():String
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
toString():String
Returns the string representation of the specified object.
Object
  
uploadFromByteArray(data:ByteArray, byteArrayOffset:int, startOffset:int, count:int):void
Store in the graphics subsystem vertex indices.
IndexBuffer3D
  
uploadFromVector(data:Vector.<uint>, startOffset:int, count:int):void
Store in the graphics subsystem vertex indices.
IndexBuffer3D
 Inherited
valueOf():Object
Returns the primitive value of the specified object.
Object
Method detail
dispose()method
public function dispose():void

Language version: ActionScript 3.0
Runtime version: AIR 3

Free all native GPU resources associated with this object. No upload() calls on this object will work and using the object in rendering will also fail.

uploadFromByteArray()method 
public function uploadFromByteArray(data:ByteArray, byteArrayOffset:int, startOffset:int, count:int):void

Language version: ActionScript 3.0
Runtime version: AIR 3

Store in the graphics subsystem vertex indices.

Parameters
data:ByteArray — a ByteArray containing index data. Each index is represented by 16-bits (two bytes) in the array. The number of bytes in data should be byteArrayOffset plus two times count.
 
byteArrayOffset:int — offset, in bytes, into the data ByteArray from where to start reading.
 
startOffset:int — The index in this IndexBuffer3D object of the first index to be loaded in this IndexBuffer3D object. A value for startIndex not equal to zero may be used to load a sub-region of the index data.
 
count:int — The number of indices represented by data.

Throws
TypeError — kNullPointerError when data is null.
 
RangeError — kBadInputSize when any of count, byteArrayOffset, or startOffset is less than 0, or if byteArrayOffset is greater than or equal to the length of data, or if two times count plus byteArrayOffset is greater than the length of data, or if startOffset + count is greater than numIndices given in Context3D::createIndexBuffer().
 
Error — 3768: The Stage3D API may not be used during background execution.
uploadFromVector()method 
public function uploadFromVector(data:Vector.<uint>, startOffset:int, count:int):void

Language version: ActionScript 3.0
Runtime version: AIR 3

Store in the graphics subsystem vertex indices.

Parameters
data:Vector.<uint> — a vector of vertex indices. Only the low 16 bits of each index value are used. The length of the vector must be greater than or equal to count.
 
startOffset:int — The index in this IndexBuffer3D object of the first index to be loaded. A value for startOffset not equal to zero may be used to load a sub-region of the index data.
 
count:int — The number of indices in data.

Throws
TypeError — kNullPointerError when data is null.
 
RangeError — kBadInputSize when count is less than 0 or greater than the length of data, or when startOffset + count is greater than numIndices given in Context3D::createIndexBuffer().
 
Error — 3768: The Stage3D API may not be used during background execution.



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