Class BuilderPart

constructor

• new BuilderPart(name, mat): BuilderPart

• Parameters

  • name: string
  • mat: Material

  Returns BuilderPart

Optional extraAttributes

material

Readonly name

boundingBox

• get boundingBox(): number[]

• Returns number[]

customArrayData

• set customArrayData(array): void

• This is a very advanced feature, and allows you to provide your own twgl.Arrays This is useful for creating custom renderables from existing data

  Parameters

  • array: Arrays

    The twgl.Arrays to use for the renderable

  Returns void

triangleCount

• get triangleCount(): number

• Returns number

addQuad

• addQuad(v1, v2, v3, v4, tc1?, tc2?, tc3?, tc4?): void

• Add a two triangle quad to the renderable part Each quad must be defined by 4 vertices and will get a normal calculated Each quad will get a unique normal, so no smooth shading

  Parameters

  • v1: XYZ

    Vertex 1 of the quad
  • v2: XYZ

    Vertex 2 of the quad
  • v3: XYZ

    Vertex 3 of the quad
  • v4: XYZ

    Vertex 4 of the quad
  • tc1: number[] = ...

    UV texture coordinate for vertex 1
  • tc2: number[] = ...

    UV texture coordinate for vertex 2
  • tc3: number[] = ...

    UV texture coordinate for vertex 3
  • tc4: number[] = ...

    UV texture coordinate for vertex 4

  Returns void

addTriangle

• addTriangle(v1, v2, v3, tc1?, tc2?, tc3?): void

• Add a triangle to the renderable part Each triangle must be defined by 3 vertices and will get a normal calculated Each triangle will get a unique normal, so no smooth shading

  Parameters

  • v1: XYZ

    Vertex 1 of the triangle
  • v2: XYZ

    Vertex 2 of the triangle
  • v3: XYZ

    Vertex 3 of the triangle
  • tc1: number[] = ...

    Texture coordinate for vertex 1
  • tc2: number[] = ...

    Texture coordinate for vertex 2
  • tc3: number[] = ...

    Texture coordinate for vertex 3

  Returns void

build

• build(gl): null | BufferInfo

• Build the part from the data added and turn into a twgl.BufferInfo

  Parameters

  • gl: WebGL2RenderingContext

    A WebGL2 rendering context

  Returns null | BufferInfo

  BufferInfo used by twgl