Class Tri

constructor

• new Tri(v0?: Vec3, v1?: Vec3, v2?: Vec3): Tri

  Creates a new Tri object.

  Parameters

  • Optionalv0: Vec3 = Vec3.ZERO

    The first 3-dimensional vector.

  • Optionalv1: Vec3 = Vec3.ZERO

    The second 3-dimensional vector.

  • Optionalv2: Vec3 = Vec3.ZERO

    The third 3-dimensional vector.

  Returns Tri

  Example

  const v0 = new pc.Vec3(1, 0, 0);
  const v1 = new pc.Vec3(0, 1, 0);
  const v2 = new pc.Vec3(2, 2, 1);
  const t = new pc.Tri(v0, v1, v2);
  Copy

Readonlyv0

Readonlyv1

Readonlyv2

intersectsRay

• intersectsRay(ray: Ray, point?: Vec3): boolean

  Test if a ray intersects with the triangle.

  Parameters

  • ray: Ray

    Ray to test against (direction must be normalized).

  • Optionalpoint: Vec3

    If there is an intersection, the intersection point will be copied into here.

  Returns boolean

  True if there is an intersection.

set

• set(v0: Vec3, v1: Vec3, v2: Vec3): Tri

  Sets the specified triangle to the supplied 3-dimensional vectors.

  Parameters

  • v0: Vec3

    The value set on the first 3-dimensional vector of the triangle.

  • v1: Vec3

    The value set on the second 3-dimensional vector of the triangle.

  • v2: Vec3

    The value set on the third 3-dimensional vector of the triangle.

  Returns Tri

  Self for chaining

  Example

  const t = new pc.Tri(pc.Vec3.UP, pc.Vec3.RIGHT, pc.Vec3.BACK);
  const v0 = new pc.Vec3(1, 0, 0);
  const v1 = new pc.Vec3(0, 1, 0);
  const v2 = new pc.Vec3(2, 2, 1);
  t.set(v0, v1, v2);
  
  // Outputs [[1, 0, 0], [0, 1, 0], [2, 2, 1]]
  console.log("The result of the triangle set is: " + t.toString());
  Copy

toString

• toString(): string

  Converts the specified triangle to string form.

  Returns string

  The triangle in string form.

  Example

  const t = new pc.Tri(pc.Vec3.UP, pc.Vec3.RIGHT, pc.Vec3.BACK);
  // Outputs [[0, 1, 0], [1, 0, 0], [0, 0, 1]]
  console.log(t.toString());
  Copy