================
LightAttenuation
================

.. py:currentmodule:: p3dsdk

.. py:class:: LightAttenuation

   .. py:attribute:: NONE
      :annotation: = 0

      No attenuation :math:`f(d)=1`.

   .. py:attribute:: LINEAR_SLOW
      :annotation: = 1

      Slow linear attenuation :math:`f(d)=\frac{2}{d+2}`.

   .. py:attribute:: LINEAR_FAST
      :annotation: = 2

      Fast linear attenuation :math:`f(d)=\frac{1}{d+1}`.

   .. py:attribute:: QUADRATIC_SLOW
      :annotation: = 3

      Slow quadratic attenuation :math:`f(d)=\frac{1}{d^2+d+1}`.

   .. py:attribute:: QUADRATIC_FAST
      :annotation: = 4

      Fast quadratic attenuation :math:`f(d)=\frac{10}{2*d^2+5*d+10}`.

   .. py:attribute:: PHYSICAL
      :annotation: = 5

      Physically realistic attenuation :math:`f(d)=\frac{1}{d^2}`.