Frustum

struct

Public Struct Frustum Implements Equatable, Printable

Local camera = Mat4.Perspective(Deg(90), 1, 0.1, 100) *
               Mat4.LookAt(Vec3(0, 0, 5), Vec3(0, 0, 0), Vec3(0, 1, 0))
Local view = Frustum.FromMatrix(camera)
Expect(view.Contains(Vec3(0, 0, 0)))
Expect(!view.Contains(Vec3(0, 0, 10)))
Expect(view.Intersects(Sphere(Vec3(0, 0, 0), 1)))

std/math/geometry.fb, line 419

• Public Field Left: Plane field #

  Its left plane, facing in.

• Public Field Right: Plane field #

  Its right plane, facing in.

• Public Field Bottom: Plane field #

  Its bottom plane, facing in.

• Public Field Top: Plane field #

  Its top plane, facing in.

• Public Field Near: Plane field #

  Its near plane, facing in.

• Public Field Far: Plane field #

  Its far plane, facing in.

• Public Static Method FromMatrix(m: Mat4): Frustum static method #

  The frustum of a projection times a view matrix, as Mat4.Perspective and LookAt make them, with depth from 0 to 1, in the space the view matrix takes from: the world's, for a camera.

• Public Method Contains(point: Vec3): Bool method #

  Whether the point is inside, or on a plane.

• Public Method Intersects(sphere: Sphere): Bool method #

  Whether the sphere is inside, or partly: False only when it's all behind a plane.

• Public Method Intersects(box: AABB): Bool method #

  Whether the box is inside, or partly: False only when it's all behind a plane, so a box just past a corner of the frustum can be True, as culling allows.

• Public Method ToString(): String method #

  Its six planes, left, right, bottom, top, near, and far, as "Frustum(Plane(...), ...)".