Re-export classes and factory functions
+An interface for cameras to extend
+Camera controls to orbit around a target
+CameraA class to create an orthographic camera
+CameraA class to create a perspective camera
+numbernumberObjectObjectObjectObjectObjectPerspectiveCamera](#PerspectiveCamera)
+ - [.orthographic](#module_index.orthographic) ⇒ [OrthographicCamera](#OrthographicCamera)
+ - [.orbiter](#module_index.orbiter) ⇒ [OrbiterControls](#OrbiterControls)
+
+
+
+### index.perspective ⇒ [PerspectiveCamera](#PerspectiveCamera)
+
+Factory function for perspective camera
+
+**Kind**: static constant of [index](#module_index)
+
+| Param | Type |
+| ----- | ------------------------------------------------------------------------------------------------------------------ |
+| opts | [CameraOptions](#CameraOptions) \| [PerspectiveCameraOptions](#PerspectiveCameraOptions) |
+
+
+
+### index.orthographic ⇒ [OrthographicCamera](#OrthographicCamera)
+
+Factory function for orthographic camera
+
+**Kind**: static constant of [index](#module_index)
+
+| Param | Type |
+| ----- | -------------------------------------------------------------------------------------------------------------------- |
+| opts | [CameraOptions](#CameraOptions) \| [OrthographicCameraOptions](#OrthographicCameraOptions) |
+
+
+
+### index.orbiter ⇒ [OrbiterControls](#OrbiterControls)
+
+Factory function for orbiter controls
+
+**Kind**: static constant of [index](#module_index)
+
+| Param | Type |
+| ----- | -------------------------------------------------------------- |
+| opts | [OrbiterControlsOptions](#OrbiterControlsOptions) |
+
+
+
+## Camera
+
+An interface for cameras to extend
+
+**Kind**: global class
+
+
+### camera.set(opts)
+
+Update the camera
+
+**Kind**: instance method of [Camera](#Camera)
+
+| Param | Type |
+| ----- | -------------------------------------------- |
+| opts | [CameraOptions](#CameraOptions) |
+
+
+
+## OrbiterControls
+
+Camera controls to orbit around a target
+
+**Kind**: global class
+
+- [OrbiterControls](#OrbiterControls)
+ - [new OrbiterControls(opts)](#new_OrbiterControls_new)
+ - [.set(opts)](#OrbiterControls+set)
+ - [.dispose()](#OrbiterControls+dispose)
+
+
+
+### new OrbiterControls(opts)
+
+Create an instance of OrbiterControls
+
+| Param | Type |
+| ----- | -------------------------------------------------------------- |
+| opts | [OrbiterControlsOptions](#OrbiterControlsOptions) |
+
+
+
+### orbiterControls.set(opts)
+
+Update the control
+
+**Kind**: instance method of [OrbiterControls](#OrbiterControls)
+
+| Param | Type |
+| ----- | --------------------------- |
+| opts | OrbiterOptions |
+
+
+
+### orbiterControls.dispose()
+
+Remove all event listeners
+
+**Kind**: instance method of [OrbiterControls](#OrbiterControls)
+
+
+## OrthographicCamera ⇐ [Camera](#Camera)
+
+A class to create an orthographic camera
+
+**Kind**: global class
+**Extends**: [Camera](#Camera)
+
+- [OrthographicCamera](#OrthographicCamera) ⇐ [Camera](#Camera)
+ - [new OrthographicCamera(opts)](#new_OrthographicCamera_new)
+ - [.set(opts)](#OrthographicCamera+set)
+
+
+
+### new OrthographicCamera(opts)
+
+Create an instance of PerspectiveCamera
+
+| Param | Type |
+| ----- | -------------------------------------------------------------------------------------------------------------------- |
+| opts | [CameraOptions](#CameraOptions) \| [OrthographicCameraOptions](#OrthographicCameraOptions) |
+
+
+
+### orthographicCamera.set(opts)
+
+Update the camera
+
+**Kind**: instance method of [OrthographicCamera](#OrthographicCamera)
+**Overrides**: [set](#Camera+set)
+
+| Param | Type |
+| ----- | -------------------------------------------------------------------------------------------------------------------- |
+| opts | [CameraOptions](#CameraOptions) \| [OrthographicCameraOptions](#OrthographicCameraOptions) |
+
+
+
+## PerspectiveCamera ⇐ [Camera](#Camera)
+
+A class to create a perspective camera
+
+**Kind**: global class
+**Extends**: [Camera](#Camera)
+
+- [PerspectiveCamera](#PerspectiveCamera) ⇐ [Camera](#Camera)
+ - [new PerspectiveCamera(opts)](#new_PerspectiveCamera_new)
+ - [.set(opts)](#PerspectiveCamera+set)
+ - [.getViewRay(x, y, windowWidth, windowHeight)](#PerspectiveCamera+getViewRay) ⇒ module:pex-geom~ray
+ - [.getWorldRay(x, y, windowWidth, windowHeight)](#PerspectiveCamera+getWorldRay) ⇒ module:pex-geom~ray
+
+
+
+### new PerspectiveCamera(opts)
+
+Create an instance of PerspectiveCamera
+
+| Param | Type |
+| ----- | ------------------------------------------------------------------------------------------------------------------ |
+| opts | [CameraOptions](#CameraOptions) \| [PerspectiveCameraOptions](#PerspectiveCameraOptions) |
+
+
+
+### perspectiveCamera.set(opts)
+
+Update the camera
+
+**Kind**: instance method of [PerspectiveCamera](#PerspectiveCamera)
+**Overrides**: [set](#Camera+set)
+
+| Param | Type |
+| ----- | ------------------------------------------------------------------------------------------------------------------ |
+| opts | [CameraOptions](#CameraOptions) \| [PerspectiveCameraOptions](#PerspectiveCameraOptions) |
+
+
+
+### perspectiveCamera.getViewRay(x, y, windowWidth, windowHeight) ⇒ module:pex-geom~ray
+
+Create a picking ray in view (camera) coordinates
+
+**Kind**: instance method of [PerspectiveCamera](#PerspectiveCamera)
+
+| Param | Type | Description |
+| ------------ | ------------------- | ----------- |
+| x | number | mouse x |
+| y | number | mouse y |
+| windowWidth | number | |
+| windowHeight | number | |
+
+
+
+### perspectiveCamera.getWorldRay(x, y, windowWidth, windowHeight) ⇒ module:pex-geom~ray
+
+Create a picking ray in world coordinates
+
+**Kind**: instance method of [PerspectiveCamera](#PerspectiveCamera)
+
+| Param | Type |
+| ------------ | ------------------- |
+| x | number |
+| y | number |
+| windowWidth | number |
+| windowHeight | number |
+
+
+
+## Radians : number
+
+**Kind**: global typedef
+
+
+## Degrees : number
+
+**Kind**: global typedef
+
+
+## CameraView : Object
+
+**Kind**: global typedef
+**Properties**
+
+| Name | Type |
+| --------- | --------------------------------- |
+| offset | module:pex-math~vec2 |
+| size | module:pex-math~vec2 |
+| totalSize | module:pex-math~vec2 |
+
+
+
+## CameraOptions : Object
+
+**Kind**: global typedef
+**Properties**
+
+| Name | Type | Default |
+| ------------------ | -------------------------------------- | -------------------------- |
+| [projectionMatrix] | module:pex-math~mat4 | mat4.create() |
+| [invViewMatrix] | module:pex-math~mat4 | mat4.create() |
+| [viewMatrix] | module:pex-math~mat4 | mat4.create() |
+| [position] | module:pex-math~vec3 | [0, 0, 3] |
+| [target] | module:pex-math~vec3 | [0, 0, 0] |
+| [up] | module:pex-math~vec3 | [0, 1, 0] |
+| [aspect] | number | 1 |
+| [near] | number | 0.1 |
+| [far] | number | 100 |
+| [view] | [CameraView](#CameraView) | Object
+
+**Kind**: global typedef
+**Properties**
+
+| Name | Type | Default |
+| ----- | -------------------------------- | ------------------------ |
+| [fov] | [Radians](#Radians) | Math.PI / 3 |
+
+
+
+## OrthographicCameraOptions : Object
+
+**Kind**: global typedef
+**Properties**
+
+| Name | Type | Default |
+| -------- | ------------------- | --------------- |
+| [left] | number | -1 |
+| [right] | number | 1 |
+| [bottom] | number | -1 |
+| [top] | number | 1 |
+| [zoom] | number | 1 |
-### `orbiter = createOrbiter(opts)`
+
-Creates new orbiter controller
+## OrbiterControlsOptions : Object
-- `opts`: object with one or more of the following options
- - `camera`: PerspectiveCamera - camera to be controlled
- - `element`: DOM Element - mouse events target, `window`
- - `easing`: Number, amount of intertia, `0`
- - `drag`: Boolean - enable drag rotation, `true`
- - `zoom`: Boolean - enable mouse wheel zooming, `true`
- - `pan`: Boolean - enable shift + drag panning, `true`
- - `lat`: Number - latitude of the orbiter position, defaults to camera.position
- - `lon`: Number - longitude of the orbiter position, defaults to camera.position
+**Kind**: global typedef
+**Properties**
-### `orbiter.set(opts)`
+| Name | Type | Default |
+| -------------- | -------------------------------- | ---------------------- |
+| camera | [Camera](#Camera) | |
+| [element] | HTMLElement | document |
+| [easing] | number | 0.1 |
+| [zoom] | boolean | true |
+| [pan] | boolean | true |
+| [drag] | boolean | true |
+| [minDistance] | number | 0.01 |
+| [maxDistance] | number | Infinity |
+| [minLat] | [Degrees](#Degrees) | -89.5 |
+| [maxLat] | [Degrees](#Degrees) | 89.5 |
+| [minLon] | number | -Infinity |
+| [maxLon] | number | Infinity |
+| [panSlowdown] | number | 4 |
+| [zoomSlowdown] | number | 400 |
+| [dragSlowdown] | number | 4 |
+| [autoUpdate] | boolean | true |
-- `opts`: see `createOrbiter`
+
## License
-MIT, see [LICENSE.md](http://github.com/vorg/geom-merge/blob/master/LICENSE.md) for details.
+MIT. See [license file](https://github.com/pex-gl/pex-cam/blob/main/LICENSE.md).
diff --git a/camera.js b/camera.js
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--- /dev/null
+++ b/camera.js
@@ -0,0 +1,38 @@
+import { mat4 } from "pex-math";
+
+/**
+ * An interface for cameras to extend
+ */
+class Camera {
+ // Static getter to get different mat for each instances
+ static get DEFAULT_OPTIONS() {
+ return {
+ projectionMatrix: mat4.create(),
+ invViewMatrix: mat4.create(),
+ viewMatrix: mat4.create(),
+ position: [0, 0, 3],
+ target: [0, 0, 0],
+ up: [0, 1, 0],
+ aspect: 1,
+ near: 0.1,
+ far: 100,
+ view: null,
+ };
+ }
+
+ /**
+ * Update the camera
+ * @param {import("./types.js").CameraOptions} opts
+ */
+ set(opts) {
+ Object.assign(this, opts);
+
+ if (opts.position || opts.target || opts.up) {
+ mat4.lookAt(this.viewMatrix, this.position, this.target, this.up);
+ mat4.set(this.invViewMatrix, this.viewMatrix);
+ mat4.invert(this.invViewMatrix);
+ }
+ }
+}
+
+export default Camera;
diff --git a/example/index.html b/example/index.html
deleted file mode 100644
index 7683e1d..0000000
--- a/example/index.html
+++ /dev/null
@@ -1,13 +0,0 @@
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