                           -------- Introduction --------

DigiTape is a plug-in extension for POV-RAY v3.1. Using DigiTape, the motion
blur is created by averaging multiple frames. Currently, DigiTape is beta. I'm 
planning to add additional effects after this one works and is fully verified.


DigiTape is neither supported nor endorsed by the POV-Team. For support or
comments, DO NOT contact the POV-Team. You can contact me at:

	wwashington@austin.rr.com

Any constructive criticism is appreciated. I am particularly interested in
hearing opinions on how to create an automated installation program for the
extension and other motion blur algorithms.


                           -------- To Install	--------

The extension is installed by modifying PVENGINE.INI in the following manner -

[GUIExtensions]
ExtDll16=C:\POVRAY\bin\digitape.pge

In the above example, DigiTape is installed as number 16. There can be up to
32. numbers 00-15 are RESERVED for the POV-Team. The pathname to the file may be
different depending on where digitape.pge was unzipped. The location of the 
plug-in is not restricted to the POV-RAY bin subdirectory.


                           -------- How It Works --------

The motion blue effect is generated by summing four frames (the current plus 
three previous ones) of an animation. Each frame has a programmable multiplier 
applied to it before the summation. After an entire frame is rendered, the 
oldest frame is dropped and a new frame is added.




