RenderComponent
Extends: Component
Enables an Entity to render a Mesh or a primitive shape. This component attaches MeshInstance geometry to the Entity.
Summary
Properties
asset | The render asset for the render component (only applies to type 'asset') - can also be an asset id. |
batchGroupId | Assign meshes to a specific batch group (see BatchGroup). |
castShadows | If true, attached meshes will cast shadows for lights that have shadow casting enabled. |
castShadowsLightmap | If true, the meshes will cast shadows when rendering lightmaps. |
customAabb | If set, the object space bounding box is used as a bounding box for visibility culling of attached mesh instances. |
isStatic | Mark meshes as non-movable (optimization). |
layers | An array of layer IDs (Layer#id) to which the meshes should belong. |
lightmapSizeMultiplier | Lightmap resolution multiplier. |
lightmapped | If true, the meshes will be lightmapped after using lightmapper. |
material | The material Material that will be used to render the meshes (not used on renders of type 'asset'). |
materialAssets | The material assets that will be used to render the meshes. |
meshInstances | An array of meshInstances contained in the component. |
receiveShadows | If true, shadows will be cast on attached meshes. |
renderStyle | Set rendering of all MeshInstances to the specified render style. |
rootBone | A reference to the entity to be used as the root bone for any skinned meshes that are rendered by this component. |
type | The type of the render. |
Methods
hide | Stop rendering MeshInstances without removing them from the scene hierarchy. |
show | Enable rendering of the component's MeshInstances if hidden using RenderComponent#hide. |
Inherited
Properties
enabled | Enables or disables the component. |
entity | The Entity that this Component is attached to. |
system | The ComponentSystem used to create this Component. |
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
RenderComponent(system, entity)
Create a new RenderComponent.
Parameters
system | RenderComponentSystem | The ComponentSystem that created this Component. |
entity | Entity | The Entity that this Component is attached to. |
Properties
The render asset for the render component (only applies to type 'asset') - can also be an asset id.
Assign meshes to a specific batch group (see BatchGroup). Default is -1 (no group).
If true, attached meshes will cast shadows for lights that have shadow casting enabled.
If set, the object space bounding box is used as a bounding box for visibility culling of attached mesh instances. This is an optimization, allowing oversized bounding box to be specified for skinned characters in order to avoid per frame bounding box computations based on bone positions.
An array of layer IDs (Layer#id) to which the meshes should belong. Don't push, pop, splice or modify this array, if you want to change it - set a new one instead.
The material Material that will be used to render the meshes (not used on renders of type 'asset').
The material assets that will be used to render the meshes. Each material corresponds to the respective mesh instance.
An array of meshInstances contained in the component. If meshes are not set or loaded for component it will return null.
Set rendering of all MeshInstances to the specified render style. Can be:
Defaults to RENDERSTYLE_SOLID.
A reference to the entity to be used as the root bone for any skinned meshes that are rendered by this component.
The type of the render. Can be one of the following:
- "asset": The component will render a render asset
- "box": The component will render a box (1 unit in each dimension)
- "capsule": The component will render a capsule (radius 0.5, height 2)
- "cone": The component will render a cone (radius 0.5, height 1)
- "cylinder": The component will render a cylinder (radius 0.5, height 1)
- "plane": The component will render a plane (1 unit in each dimension)
- "sphere": The component will render a sphere (radius 0.5)
- "torus": The component will render a torus (tubeRadius: 0.2, ringRadius: 0.3)
Methods
hide()
Stop rendering MeshInstances without removing them from the scene hierarchy. This method sets the MeshInstance#visible property of every MeshInstance to false. Note, this does not remove the mesh instances from the scene hierarchy or draw call list. So the render component still incurs some CPU overhead.
show()
Enable rendering of the component's MeshInstances if hidden using RenderComponent#hide. This method sets the MeshInstance#visible property on all mesh instances to true.
Inherited
Properties
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 | string | 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.
const 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 handler functions, called 'test' with scope this
Parameters
name | string | Name of the event to unbind. |
callback | HandleEventCallback | 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 | HandleEventCallback | 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 | HandleEventCallback | 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.