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Belgian Amiga Club - ADF Collection
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BS1 part 19.zip
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BS1 part 19
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turb
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TURB (1)
TURB stands for TURBo compression.
The inclusion of this statement within the Global Constants (GLOC)
in the initialization (INIT) section will result in PFX applying
Turbo (TURB) compression techniques when compiling the animation.
Refer to HOCO (Horizontal Compression) for a discussion of
compression.
With PFX 1.0, your choice is between XOR (the default) and Turbo.
What is the difference?
1. The same animation will run faster when compiled with the Turbo
statement, than it would run compiled without the Turbo statement.
2. Compilation with the Turbo statement will cause the compiled
file to require 0 to 100% more space on disk as well as in memory.
3. Turbo animations cannot be played (intelligently) backwards.
This means that you can script a backwards sequence, but the
software will not detect that these images have been used before,
so they will be used as if they were entirely new, and different,
images.
PERFORMANCE HINT:
Select Turbo mode when:
* You are desparate for speed, and have some space to sacrifice to
get the speed.
* You are sure that you will not want to play the animation
backwards (or, you have lots of memory, so the wastage with
reversed sequences does not worry you.
NOTE: You should experiment with different compression modes with
different animations, to develop a deeper understanding of the
effects of different options.
CAUTION: Once you have compiled an animation with a certain setting
(XOR, or Turbo), the Global Constants cannot be changed to the other
setting. To get around this, always save a script separately from
the compiled animation, using the Special Features option in PFX.
When the script alone is read back in (from the same Special Features
section), the Global Constants can be changed. Of course, incremental
compilation is not in effect in this instance, so the entire
animation will be recompiled.