Point Light

A point light source is defined by a center and a radius. A point light illuminates light to all directions. The radius attribute can be used for controlling the fall off.

It is also possible to set a 'size' attribute, in which case the point light becomes an area light generating soft shadows in a physically correct way.

Point light also supports an 'Ambient' option. If set, the light source no longer emits light rays radially but randomly to all directions. The position and size attributes are then used for controlling the strength of illumination. This allows the user to create local ambient lighting effects.

Point light specific options: