export declare const DEFAULT_LAYER_MASK = 1;
export declare const COORDINATE_LAYER_MASK = 2;
export declare const UI_LAYER_MASK = 4;
export declare const HELPER_LAYER_MASK = 8;
export declare const PRODUCT_LAYER_MASK = 16;
/**
 * The ground plane.
 *
 * Deliberately separate from `PRODUCT_LAYER_MASK`: the floor has to render and
 * receive shadows, but it must not count towards bounding boxes, scene exports
 * or picking. Keeping it on its own bit makes "does this geometry count?" a
 * plain `mask & PRODUCT_LAYER_MASK` test with no per-class exceptions.
 */
export declare const FLOOR_LAYER_MASK = 32;
/**
 * Stands in for an entity that has no geometry of its own.
 *
 * A point light is nothing but a position; the little sphere you can see and
 * click in the editor represents it. Picking a proxy therefore means picking the
 * entity behind it, which is what `findInterface` resolves by walking up.
 *
 * Its own bit, because it sits between two others that both fit badly:
 * `PRODUCT_LAYER_MASK` would make it count towards bounds, snapping and exports,
 * and `UI_LAYER_MASK` is the gizmo — which must never be selectable as an
 * object. `HELPER_LAYER_MASK` is the opposite case again: decoration that is not
 * picked at all.
 */
export declare const PROXY_LAYER_MASK = 64;
/**
 * A baked contact shadow under a model.
 *
 * Its own bit for the same reason the floor has one: the shadow has to be drawn
 * in both views, but it is not geometry. `PRODUCT_LAYER_MASK` would put it into
 * bounding boxes, scene exports and picking, and it is the one thing the bake
 * must never capture -- the bake camera renders `PRODUCT_LAYER_MASK`, so this
 * bit is what keeps the plane out of its own shadow. `FLOOR_LAYER_MASK` would
 * tie it to the ground plane, and hiding the floor would take the shadow with
 * it.
 */
export declare const SHADOW_LAYER_MASK = 128;
/**
 * An environment image drawn as scenery, such as a ground-projected dome.
 *
 * Its own bit, because it is the backdrop and nothing else: drawn in both views,
 * but never content -- not in bounds, exports or picking, and not on the product
 * layer a shadow bake renders, which would otherwise capture the whole dome.
 */
export declare const BACKGROUND_LAYER_MASK = 256;