Class MeshAbstract

Grid abstract class.

Hierarchy

Constructors

constructor

Properties

_glIndexByteCount _glIndexType _indexBufferBinding _instanceCount _platformPrimitive _subMeshes _vertexBufferBindings _vertexElementMap _vertexElements gl name

Accessors

subMesh subMeshes

Methods

_addVertexElement _clearVertexElements _draw _onDestroy _setIndexBufferBinding _setVertexBufferBinding _setVertexElements addSubMesh clearSubMesh removeSubMesh

Constructors

constructor

  • Parameters

    • gl: WebGLRenderingContext
    • Optional name: string

    Returns Mesh

Properties

_glIndexByteCount

_glIndexByteCount: number

Each index occupies several bytes, 8 bits per byte.

_glIndexType

_glIndexType: number

The storage type of the index, for example: UInt8.

_indexBufferBinding

_indexBufferBinding: IndexBufferBinding = null

The index buffer corresponding to the mesh

_instanceCount

_instanceCount: number = 0

A Mesh may consist of multiple vertex instances.

_platformPrimitive

_platformPrimitive: Renderer

A platform that provides rendering capabilities.

Private _subMeshes

_subMeshes: SubMesh[] = []

Drawing information for each element.

_vertexBufferBindings

_vertexBufferBindings: VertexBufferBinding[] = []

The vertex buffer corresponding to the mesh.

_vertexElementMap

_vertexElementMap: Record<string, VertexElement> = {}

Vertex entity record table, used for caching.

_vertexElements

_vertexElements: VertexElement[] = []

Array of vertex elements.

Protected gl

gl: WebGLRenderingContext

name

name: string

Name.

Accessors

subMesh

subMeshes

Methods

_addVertexElement

_clearVertexElements

_draw

_onDestroy

Protected _setIndexBufferBinding

Protected _setVertexBufferBinding

Protected _setVertexElements

addSubMesh

  • Add sub-mesh, each sub-mesh can correspond to an independent material.

    Returns

    Sub-mesh

    Parameters

    • subMesh: SubMesh

      Start drawing offset, if the index buffer is set, it means the offset in the index buffer, if not set, it means the offset in the vertex buffer

    Returns SubMesh

  • Add sub-mesh, each sub-mesh can correspond to an independent material.

    Returns

    Sub-mesh

    Parameters

    • start: number

      Start drawing offset, if the index buffer is set, it means the offset in the index buffer, if not set, it means the offset in the vertex buffer

    • count: number

      Drawing count, if the index buffer is set, it means the count in the index buffer, if not set, it means the count in the vertex buffer

    • Optional topology: MeshTopology

      Drawing topology, default is MeshTopology.Triangles

    Returns SubMesh

clearSubMesh

removeSubMesh

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