BVH3

class BVH3

A bounding volume hierarchy to quickly select 3d shapes.

Methods

__init__	Constructor(s)
select(position, max_distance, result)	Returns a rough selection of the elements at a distance of position smaller than max_distance.

__init__()

Constructor(s)

BVH3 (v: Value)

Cast a Value object in BVH3.

If v has not the good type, a default value is constructed.

BVH3 (points,obj_per_leaf: int)

Build a BVH of 3d points.

Parameters

• points - The points

• obj_per_leaf (int) - Number of points per BVH leaf. Smaller numbers give larger BVHs but faster object selection.

BVH3 (boxes,obj_per_leaf: int)

Build a BVH of axis aligned boxes.

Parameters

• boxes - The boxes

• obj_per_leaf (int) - Number of boxes per BVH leaf. Smaller numbers give larger BVHs but faster object selection.

select(position: Imath.V3f, max_distance: float, result: list(int)) → None

Returns a rough selection of the elements at a distance of position smaller than max_distance.

All the objects closer to position than max_distance are returned once. Objects farther to position than max_distance may be also returned once. A more precise test should be performed after this rough selection.