Diagrams.ThreeD.Camera

Types to specify viewpoint for 3D rendering.

Documentation

data Camera l n

Instances

Num n => Transformable (Camera l n)

Methods

transform :: Transformation (V (Camera l n)) (N (Camera l n)) -> Camera l n -> Camera l n

Num n => Renderable (Camera l n) NullBackend

Methods

render :: NullBackend -> Camera l n -> Render NullBackend (V (Camera l n)) (N (Camera l n))

type V (Camera l n)

type V (Camera l n) = V3

type N (Camera l n)

type N (Camera l n) = n

data PerspectiveLens n

A perspective projection

Constructors

PerspectiveLens

Fields

• _horizontalFieldOfView :: Angle n

  Horizontal field of view.

• _verticalFieldOfView :: Angle n

  Vertical field of view.

Instances

type V (PerspectiveLens n)

type V (PerspectiveLens n) = V3

type N (PerspectiveLens n)

type N (PerspectiveLens n) = n

data OrthoLens n

An orthographic projection

Constructors

OrthoLens

Fields

• _orthoWidth :: n

  Width

• _orthoHeight :: n

  Height

Instances

type V (OrthoLens n)

type V (OrthoLens n) = V3

type N (OrthoLens n)

type N (OrthoLens n) = n

horizontalFieldOfView :: forall n. Lens' (PerspectiveLens n) (Angle n)

verticalFieldOfView :: forall n. Lens' (PerspectiveLens n) (Angle n)

orthoWidth :: forall n. Lens' (OrthoLens n) n

orthoHeight :: forall n. Lens' (OrthoLens n) n

camLoc :: Camera l n -> Point V3 n

camForward :: Camera l n -> Direction V3 n

camUp :: Camera l n -> Direction V3 n

camRight :: Fractional n => Camera l n -> Direction V3 n

camLens :: Camera l n -> l n

facing_ZCamera :: (Floating n, Ord n, Typeable n, CameraLens l, Renderable (Camera l n) b) => l n -> QDiagram b V3 n Any

'facing_ZCamera l' is a camera at the origin facing along the negative Z axis, with its up-axis coincident with the positive Y axis, with the projection defined by l.

mm50Camera :: (Typeable n, Floating n, Ord n, Renderable (Camera PerspectiveLens n) b) => QDiagram b V3 n Any

A camera at the origin facing along the negative Z axis, with its up-axis coincident with the positive Y axis. The field of view is chosen to match a 50mm camera on 35mm film. Note that Cameras take up no space in the Diagram.

mm50 :: Floating n => PerspectiveLens n

mm50 has the field of view of a 50mm lens on standard 35mm film, hence an aspect ratio of 3:2.

mm50Wide :: Floating n => PerspectiveLens n

mm50blWide has the same vertical field of view as mm50, but an aspect ratio of 1.6, suitable for wide screen computer monitors.

mm50Narrow :: Floating n => PerspectiveLens n

mm50Narrow has the same vertical field of view as mm50, but an aspect ratio of 4:3, for VGA and similar computer resolutions.

aspect :: (CameraLens l, Floating n) => l n -> n

The natural aspect ratio of the projection.

camAspect :: (Floating n, CameraLens l) => Camera l n -> n