Class GeometrySystem

System plugin to the renderer to manage geometry.

Memberof

PIXI

Implements

Constructors

constructor

Properties

canUseUInt32ElementIndex hasInstance hasVao managedGeometries

Methods

bind destroy disposeAll disposeGeometry draw reset updateBuffers

Constructors

constructor

Properties

ReadonlycanUseUInt32ElementIndex

canUseUInt32ElementIndex: boolean

true if support gl.UNSIGNED_INT in gl.drawElements or gl.drawElementsInstanced.

ReadonlyhasInstance

hasInstance: boolean

true if has ANGLE_instanced_arrays extension.

ReadonlyhasVao

hasVao: boolean

true if we has *_vertex_array_object extension.

ReadonlymanagedGeometries

managedGeometries: { [key: number]: Geometry }

Cache for all geometries by id, used in case renderer gets destroyed or for profiling.

Methods

bind

  • bind(geometry?: Geometry, shader?: Shader): void

  • Binds geometry so that is can be drawn. Creating a Vao if required

    Parameters

    • Optionalgeometry: Geometry

      Instance of geometry to bind.

    • Optionalshader: Shader

      Instance of shader to use vao for.

    Returns void

destroy

  • destroy(): void

  • Generic destroy methods to be overridden by the subclass

    Returns void

disposeAll

  • disposeAll(contextLost?: boolean): void

  • Dispose all WebGL resources of all managed geometries.

    Parameters

    • OptionalcontextLost: boolean

      If context was lost, we suppress gl.delete calls

    Returns void

disposeGeometry

  • disposeGeometry(geometry: Geometry, contextLost?: boolean): void

  • Disposes geometry.

    Parameters

    • geometry: Geometry

      Geometry with buffers. Only VAO will be disposed

    • OptionalcontextLost: boolean

      If context was lost, we suppress deleteVertexArray

    Returns void

draw

  • draw(
        type: DRAW_MODES,
        size?: number,
        start?: number,
        instanceCount?: number,
    ): this

  • Draws the currently bound geometry.

    Parameters

    • type: DRAW_MODES

      The type primitive to render.

    • Optionalsize: number

      The number of elements to be rendered. If not specified, all vertices after the starting vertex will be drawn.

    • Optionalstart: number

      The starting vertex in the geometry to start drawing from. If not specified, drawing will start from the first vertex.

    • OptionalinstanceCount: number

      The number of instances of the set of elements to execute. If not specified, all instances will be drawn.

    Returns this

reset

  • reset(): void

  • Reset and unbind any active VAO and geometry.

    Returns void

updateBuffers

  • updateBuffers(): void

  • Update buffers of the currently bound geometry.

    Returns void

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