Lloyd 3d documentation.

0b22ff5f · Ilya Portnov · 9a3c24be · 0b22ff5f · 0b22ff5f
--- a/docs/nodes/spatial/lloyd3d.rst
+++ b/docs/nodes/spatial/lloyd3d.rst
+Lloyd 3D
+========
+
+Dependencies
+------------
+
+This node requires SciPy_ library to work.
+
+.. _SciPy: https://scipy.org/
+
+Functionality
+-------------
+
+This node uses Lloyd_ algorithm to redistribute a set of points in 3D space
+(XOY plane) uniformly inside bounding box or bounding sphere.
+
+Optionally, weighted Lloyd algorithm can be used, to put points more dense in
+places to which higher weight is assigned.
+
+.. _Lloyd: https://en.wikipedia.org/wiki/Lloyd%27s_algorithm
+
+Inputs
+------
+
+This node has the following inputs:
+
+* **Sites**. Initial points to be redistributed. This input is mandatory.
+* **Clipping**. Clipping distance for Voronoi diagram. This value will be added
+  to size of bounding box or sphere. The default value is 1.0.
+* **Iterations**. Number of Lloyd's algorithm iterations. The default value is 3.
+* **Weights**. Scalar Field object used to assign different weights for
+  different places in 3D space. More points will be put in places which have
+  bigger weight. This input is optional. If not connected, uniform Lloyd
+  algorithm will be used.
+
+Parameters
+----------
+
+This node has the following parameters:
+
+* **Bounds mode**. This defines bounding shape of generated points. The available options are:
+
+  * **Bounding box**
+  * **Bounding sphere**.
+
+  The default value is **Bounding box**.
+
+Outputs
+-------
+
+This node has the following output:
+
+* **Sites**. Redisrtibuted points.
+
+Example of Usage
+----------------
+
+.. image:: https://user-images.githubusercontent.com/284644/100535945-1dd8ad80-323f-11eb-981f-1d1743e1fd6b.png
+
--- a/docs/nodes/spatial/spatial_index.rst
+++ b/docs/nodes/spatial/spatial_index.rst
@@ -15,3 +15,4 @@ Spatial
   voronoi_sphere
   voronoi_on_surface
   lloyd2d
+   lloyd3d