Game Development Reference
Figure 6.9 The Publish settings
window allows you to set the
default image quality.
By default, Flash does not re-render images as they are distorted in
any form on the stage, including skewing, scaling, or even rotating
(at any angle not divisible by 90). This causes a jagged, blocky
effect that is very noticeable on any images that are not moving
rapidly. If you have any raster elements in your game that need to
be able to rotate or resize from time to time, consider checking the
Allow smoothing box in the Bitmap Properties panel. While it looks
considerably cleaner, this does tax the processor a little bit more
per image, so use it sparingly and consider disabling it for some
images if your game begins to stutter later on in testing.
Enabling deblocking will apply some extra smoothing to improve
images that are set to an extremely low JPEG quality, as in 30 or
less. Unless you are using many heavily compressed images,
deblocking is probably not a feature you will need much.
External Image Tools
The artists I work with typically use Adobe Photoshop and Adobe
Fireworks raster game art. They produce very good JPEG compression
and very clean PNG files. If you
re on a tight budget and can
t need all the high-end features of) Photoshop, Fireworks by
itself is a very satisfactory application. As of this writing, it is $300.
For vector art, I
ve known a number of artists who use the tools
in Flash to great effect, which cost nothing extra and automatically
optimize the vectors as they are created. Fireworks also has a very