Scene
Extends: EventHandler
A scene is graphical representation of an environment. It manages the scene hierarchy, all graphical objects, lights, and scene-wide properties.
Summary
Properties
ambientLight | The color of the scene's ambient light. |
defaultMaterial | The default material used in case no other material is available. |
exposure | The exposure value tweaks the overall brightness of the scene. |
fog | The type of fog used by the scene. |
fogColor | The color of the fog (if enabled). |
fogDensity | The density of the fog (if enabled). |
fogEnd | The distance from the viewpoint where linear fog reaches its maximum. |
fogStart | The distance from the viewpoint where linear fog begins. |
gammaCorrection | The gamma correction to apply when rendering the scene. |
layers | A LayerComposition that defines rendering order of this scene. |
lightmapMaxResolution | The maximum lightmap resolution. |
lightmapMode | The lightmap baking mode. |
lightmapSizeMultiplier | The lightmap resolution multiplier. |
root | The root entity of the scene, which is usually the only child to the Application root entity. |
skybox | The base cubemap texture used as the scene's skybox, if mip level is 0. |
skyboxIntensity | Multiplier for skybox intensity. |
skyboxMip | The mip level of the skybox to be displayed. |
skyboxPrefiltered128 | The prefiltered cubemap texture (size 128x128) used as the scene's skybox, if mip level 1. |
skyboxPrefiltered16 | The prefiltered cubemap texture (size 16x16) used as the scene's skybox, if mip level 4. |
skyboxPrefiltered32 | The prefiltered cubemap texture (size 32x32) used as the scene's skybox, if mip level 3. |
skyboxPrefiltered4 | The prefiltered cubemap texture (size 4x4) used as the scene's skybox, if mip level 6. |
skyboxPrefiltered64 | The prefiltered cubemap texture (size 64x64) used as the scene's skybox, if mip level 2. |
skyboxPrefiltered8 | The prefiltered cubemap texture (size 8x8) used as the scene's skybox, if mip level 5. |
skyboxRotation | The rotation of the skybox to be displayed. |
toneMapping | The tonemapping transform to apply when writing fragments to the frame buffer. |
Methods
setSkybox | Sets the cubemap for the scene skybox. |
Inherited
Methods
fire | Fire an event, all additional arguments are passed on to the event listener. |
hasEvent | Test if there are any handlers bound to an event name. |
off | Detach an event handler from an event. |
on | Attach an event handler to an event. |
once | Attach an event handler to an event. |
Details
Constructor
Scene()
Creates a new Scene.
Properties
The density of the fog (if enabled). This property is only valid if the fog property is set to FOG_EXP or FOG_EXP2. Defaults to 0.
The distance from the viewpoint where linear fog reaches its maximum. This property is only valid if the fog property is set to FOG_LINEAR. Defaults to 1000.
The distance from the viewpoint where linear fog begins. This property is only valid if the fog property is set to FOG_LINEAR. Defaults to 1.
The gamma correction to apply when rendering the scene. Can be:
Defaults to GAMMA_NONE.
The lightmap baking mode. Can be:
- BAKE_COLOR: single color lightmap
- BAKE_COLORDIR: single color lightmap + dominant light direction (used for bump/specular). Only lights with bakeDir=true will be used for generating the dominant light direction.
Defaults to BAKE_COLORDIR.
The root entity of the scene, which is usually the only child to the Application root entity.
The base cubemap texture used as the scene's skybox, if mip level is 0. Defaults to null.
The mip level of the skybox to be displayed. Only valid for prefiltered cubemap skyboxes. Defaults to 0 (base level).
The prefiltered cubemap texture (size 128x128) used as the scene's skybox, if mip level 1. Defaults to null.
The prefiltered cubemap texture (size 16x16) used as the scene's skybox, if mip level 4. Defaults to null.
The prefiltered cubemap texture (size 32x32) used as the scene's skybox, if mip level 3. Defaults to null.
The prefiltered cubemap texture (size 4x4) used as the scene's skybox, if mip level 6. Defaults to null.
The prefiltered cubemap texture (size 64x64) used as the scene's skybox, if mip level 2. Defaults to null.
The prefiltered cubemap texture (size 8x8) used as the scene's skybox, if mip level 5. Defaults to null.
The tonemapping transform to apply when writing fragments to the frame buffer. Can be:
Defaults to TONEMAP_LINEAR.
Methods
setSkybox([cubemaps])
Sets the cubemap for the scene skybox.
Parameters
cubemaps | Texture[] | An array of cubemaps corresponding to the skybox at different mip levels. If undefined, scene will remove skybox. Cubemap array should be of size 7, with the first element (index 0) corresponding to the base cubemap (mip level 0) with original resolution. Each remaining element (index 1-6) corresponds to a fixed prefiltered resolution (128x128, 64x64, 32x32, 16x16, 8x8, 4x4). |
Inherited
Methods
fire(name, [arg1], [arg2], [arg3], [arg4], [arg5], [arg6], [arg7], [arg8])
Fire an event, all additional arguments are passed on to the event listener.
obj.fire('test', 'This is the message');
Parameters
name | object | Name of event to fire. |
arg1 | * | First argument that is passed to the event handler. |
arg2 | * | Second argument that is passed to the event handler. |
arg3 | * | Third argument that is passed to the event handler. |
arg4 | * | Fourth argument that is passed to the event handler. |
arg5 | * | Fifth argument that is passed to the event handler. |
arg6 | * | Sixth argument that is passed to the event handler. |
arg7 | * | Seventh argument that is passed to the event handler. |
arg8 | * | Eighth argument that is passed to the event handler. |
Returns
EventHandlerSelf for chaining.
hasEvent(name)
Test if there are any handlers bound to an event name.
obj.on('test', function () { }); // bind an event to 'test'
obj.hasEvent('test'); // returns true
obj.hasEvent('hello'); // returns false
Parameters
name | string | The name of the event to test. |
Returns
booleanTrue if the object has handlers bound to the specified event name.
off([name], [callback], [scope])
Detach an event handler from an event. If callback is not provided then all callbacks are unbound from the event, if scope is not provided then all events with the callback will be unbound.
var handler = function () {
};
obj.on('test', handler);
obj.off(); // Removes all events
obj.off('test'); // Removes all events called 'test'
obj.off('test', handler); // Removes all handler functions, called 'test'
obj.off('test', handler, this); // Removes all hander functions, called 'test' with scope this
Parameters
name | string | Name of the event to unbind. |
callback | callbacks.HandleEvent | Function to be unbound. |
scope | object | Scope that was used as the this when the event is fired. |
Returns
EventHandlerSelf for chaining.
on(name, callback, [scope])
Attach an event handler to an event.
obj.on('test', function (a, b) {
console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console
Parameters
name | string | Name of the event to bind the callback to. |
callback | callbacks.HandleEvent | Function that is called when event is fired. Note the callback is limited to 8 arguments. |
scope | object | Object to use as 'this' when the event is fired, defaults to current this. |
Returns
EventHandlerSelf for chaining.
once(name, callback, [scope])
Attach an event handler to an event. This handler will be removed after being fired once.
obj.once('test', function (a, b) {
console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console
obj.fire('test', 1, 2); // not going to get handled
Parameters
name | string | Name of the event to bind the callback to. |
callback | callbacks.HandleEvent | Function that is called when event is fired. Note the callback is limited to 8 arguments. |
scope | object | Object to use as 'this' when the event is fired, defaults to current this. |
Returns
EventHandlerSelf for chaining.