Class BufferUtil

Utility functions for processing Buffers.

Hierarchy

BufferUtil

Index

Constructors

Methods

_getElementInfo _getGLBufferUsage _getGLIndexByteCount _getGLIndexType

Constructors

constructor

new BufferUtil(): BufferUtil
Returns BufferUtil

Methods

`Static` _getElementInfo

_getElementInfo(format: VertexElementFormat): ElementInfo
Returns vertex information based on the element's vertex format.
Parameters
- format: VertexElementFormat
Returns ElementInfo
- Defined in core/graphic/BufferUtil.ts:74

`Static` _getGLBufferUsage

_getGLBufferUsage(gl: WebGLRenderingContext, bufferUsage: BufferUsage): number
Obtain the usage of Buffer according to the incoming enumeration.

Returns
The number code used by the internal buffer of gl.
Parameters
- gl: WebGLRenderingContext
  
  WebGL rendering context.
- bufferUsage: BufferUsage
  
  Buffer usage.
Returns number
- Defined in core/graphic/BufferUtil.ts:28

`Static` _getGLIndexByteCount

_getGLIndexByteCount(indexFormat: IndexFormat): DataType
Get gl index byte count.

Returns
Index byte count.
Parameters
- indexFormat: IndexFormat
  
  Index type enumeration.
Returns DataType
- Defined in core/graphic/BufferUtil.ts:60

`Static` _getGLIndexType

_getGLIndexType(indexFormat: IndexFormat): DataType
Get index type code.

Returns
The number code used by the internal type of gl.
Parameters
- indexFormat: IndexFormat
  
  Index type enumeration.
Returns DataType
- Defined in core/graphic/BufferUtil.ts:44

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