|   | 3.5.3 Finish | POV-Ray 3.6 for UNIX documentation 3.5.4 Halo | 3.5.5 Patterned Textures |   | 
  Earlier versions of POV-Ray used a feature called halo to simulate fine particles such as smoke, 
 steam, fog, or flames. The  halo statement was part of the texture statement. This feature 
 has been discontinued and replaced by the interior and media statements which are object 
 modifiers outside the  texture statement. 
  See "Why are Interior and Media Necessary?" for a detailed 
 explanation on the reasons for the change. See "Media" for details on media. 
 
|   | 3.5.3 Finish | 3.5.4 Halo | 3.5.5 Patterned Textures |   |