Intersections

Entry point for intersecting and obtaining intersection data from the scene. Accessible from SpeckleRenderer

Methods

intersect

intersect(
    scene: Scene,
    camera: Camera,
    point: Vector2,
    castLayers: ObjectLayers.STREAM_CONTENT_MESH,
    nearest?: boolean,
    bounds?: Box3,
    firstOnly?: boolean,
    tasOnly?: boolean
  ): Array<ExtendedMeshIntersection> | null

intersect(
    scene: Scene,
    camera: Camera,
    point: Vector2,
    castLayers?: Array<ObjectLayers>,
    nearest?: boolean,
    bounds?: Box3,
    firstOnly?: boolean,
    tasOnly?: boolean
  ): Array<ExtendedIntersection> | null

Scene intersect function.

All intersect calls from this class will use the available acceleration structures. This makes the intersection significantly faster than using your own three.js raycasters.

Parameters:

• scene: Scene
• camera: Camera
• point: The NDC point to cast the ray from
• castLayers: The ObjectLayers enabled on the raycaster
• nearest: If the results should be sorted by dinstance. i.e nearest first
• bounds: An optional bounds where the intersecting takes place. Everything outside this bounds is disregarded from the result list for this cast. Any object outside of these layers is disregarded from intersection
• firstOnly: When this flag is enabled the acceleration structure will stop traversing after encountering the first intersection. Only applies to meshes
• tasOnly: When this flag is enabled, onyl the TAS will be intersected. Can be combined with firstOnly if wanted Returns: Array< Intersection > Three.js defined intersection

intersectRay

intersectRay(
    scene: Scene,
    camera: Camera,
    ray: Ray,
    castLayers: ObjectLayers.STREAM_CONTENT_MESH,
    nearest?: boolean,
    bounds?: Box3,
    firstOnly?: boolean,
    tasOnly?: boolean
  ): Array<ExtendedMeshIntersection> | null
intersectRay(
    scene: Scene,
    camera: Camera,
    ray: Ray,
    castLayers?: Array<ObjectLayers>,
    nearest?: boolean,
    bounds?: Box3,
    firstOnly?: boolean,
    tasOnly?: boolean
  ): Array<ExtendedIntersection> | null

Scene intersect function using a provided Ray.

All intersect calls from this class will use the available acceleration structures. This makes the intersection significantly faster than using your own three.js raycasters.

Parameters:

• scene: Scene
• camera: Camera
• ray: The ray to use for casting
• castLayers: The ObjectLayers enabled on the raycaster
• nearest: If the results should be sorted by dinstance. i.e nearest first
• bounds: An optional bounds where the intersecting takes place. Everything outside this bounds is disregarded from the result list for this cast. Any object outside of these layers is disregarded from intersection
• firstOnly: When this flag is enabled the acceleration structure will stop traversing after encountering the first intersection. Only applies to meshes
• tasOnly: When this flag is enabled, onyl the TAS will be intersected. Can be combined with firstOnly if wanted Returns: Array< Intersection > Three.js defined intersection

Typedefs

ExtendedIntersection

interface ExtendedIntersection extends Intersection {
  batchObject?: BatchObject
  pointOnLine?: Material
}

Extension of three.js’s default Intersection.

ExtendedMeshIntersection

interface ExtendedMeshIntersection extends MeshIntersection {
  batchObject: BatchObject
  object: SpeckleMesh | SpeckleInstancedMesh
}

MeshIntersection

interface MeshIntersection extends Intersection {
  face: Face
  faceIndex: number
}