[page:Object3D] → [page:Camera] →
[name]
Camera with perspective projection.
Example
[example:canvas_geometry_birds geometry / birds ]
[example:canvas_geometry_cube geometry / cube ]
[example:webgl_animation_skinning_blending animation / skinning / blending ]
[example:webgl_animation_skinning_morph animation / skinning / blending ]
[example:webgl_effects_stereo effects / stereo ]
[example:webgl_interactive_cubes interactive / cubes ]
[example:webgl_loader_collada_skinning loader / collada / skinning ]
var camera = new THREE.PerspectiveCamera( 45, width / height, 1, 1000 );
scene.add( camera );
Constructor
[name]( [page:Float fov], [page:Float aspect], [page:Float near], [page:Float far] )
fov — Camera frustum vertical field of view.
aspect — Camera frustum aspect ratio.
near — Camera frustum near plane.
far — Camera frustum far plane.
Properties
[property:Float fov]
Camera frustum vertical field of view, from bottom to top of view, in degrees.
[property:number zoom]
Gets or sets the zoom factor of the camera.
[property:Float near]
Camera frustum near plane.
[property:Float far]
Camera frustum far plane.
[property:Float focus]
Object distance used for stereoscopy and depth-of-field effects. This parameter does not influence the projection matrix unless a StereoCamera is being used.
[property:Float aspect]
Camera frustum aspect ratio, window width divided by window height.
[property:Object view]
Frustum window specification or null.
[property:Float filmGauge]
Film size used for the larger axis. Default is 35 (millimeters). This parameter does not influence the projection matrix unless .filmOffset is set to a nonzero value.
[property:Float filmOffset]
Horizontal off-center offset in the same unit as .filmGauge.
Methods
[method:Float getEffectiveFOV]()
Returns the current vertical field of view angle in degrees considering .zoom.
[method:Float getFocalLength]()
Returns the focal length of the current .fov in respect to .filmGauge.
[method:Float getFilmWidth]()
Returns the width of the image on the film. If .aspect is greater than or equal to one (landscape format), the result equals .filmGauge.
[method:Float getFilmHeight]()
Returns the height of the image on the film. If .aspect is less than or equal to one (portrait format), the result equals .filmGauge.
[method:null setFocalLength]( [page:Float focalLength] )
Sets the FOV by focal length in respect to the current .filmGauge.
By default, the focal length is specified for a 35mm (full frame) camera.
[method:null setLens]( [page:Float focalLength], [page:Float filmGauge] )
focalLength — focal length
frameGauge — film gauge
Sets .fov by focal length. Optionally also sets .filmGauge.
This method is deprecated, please use .setFocalLength instead.
[method:null setViewOffset]( [page:Float fullWidth], [page:Float fullHeight], [page:Float x], [page:Float y], [page:Float width], [page:Float height] )
fullWidth — full width of multiview setup
fullHeight — full height of multiview setup
x — horizontal offset of subcamera
y — vertical offset of subcamera
width — width of subcamera
height — height of subcamera
Sets an offset in a larger frustum. This is useful for multi-window or multi-monitor/multi-machine setups.
For example, if you have 3x2 monitors and each monitor is 1920x1080 and the monitors are in grid like this:
+---+---+---+
| A | B | C |
+---+---+---+
| D | E | F |
+---+---+---+
then for each monitor you would call it like this:
var w = 1920;
var h = 1080;
var fullWidth = w * 3;
var fullHeight = h * 2;
// A
camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
// B
camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
// C
camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
// D
camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
// E
camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
// F
camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
Note there is no reason monitors have to be the same size or in a grid.
[method:null clearViewOffset]()
Removes any offset set by the .setViewOffset method.
[method:null updateProjectionMatrix]()
Updates the camera projection matrix. Must be called after change of parameters.
[method:PerspectiveCamera clone]()
It returns a clone of PerspectiveCamera.
[method:JSON toJSON]()
Return camera data in JSON format.
Source
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]