[OT] images: best transparent format

Scott Rossi scott at tactilemedia.com
Mon Oct 31 01:41:11 EDT 2011


I'm pretty sure the issue is LiveCode, not you.  See an example here:

http://www.tactilemedia.com/download/LC_antialias_issue.jpg

LiveCode has had antialiasing issues for years (try creating a sharp line
using an even line width in LC -- can't be done when antialiasing is
enabled).  My guess is whatever routines are being used to antialias object
edges are also being applied to edges of images and producing less then
desirable results.

BTW, the image format you want is 32 bit PNG.  And, yes, it is worth the
bother, so we can get good results using native graphics effects, and keep
apps efficient, instead having to go outside LiveCode and "hard code"
graphic effects into images.

Regards,

Scott Rossi
Creative Director
Tactile Media, UX Design


Recently, Nicolas Cueto wrote:

> Hello,
> 
> I'm using Fireworks 2004 to create transparent images of alphabet
> letters that I import onto an LC stack using LC's "File > Import"
> menu. Problem is, when in LC I set "dropshadow" and "innershadow"
> there is still a teeny little bit of jaggedness noticeable between the
> image itself and the inner/outer shadows.
> 
> As attempts to a solution, in Fireworks I've tried:
> 
> -- the various "Anti-alias" options (smooth, crisp)
> -- a PNG8 file export, with either/or Alpha- and Index-transparency
> (whatever those mean!), and with either/or no-Matte and Matte of a
> color either/or exact or similar to the image color
> -- a PNG32 file export (no option available for Alpha- or Index-transparency)
> 
> ... and in LC I've messed around with the various
> dropshadow/innershadow settings, including  "Filter"  from Gaussian
> down to box3pass.
> 
> As I say, the jaggedness is quite slight. Some might say it's not even
> worth the bother. But, if I notice it, my finicky Japanese learners
> will too.
> 
> Thanks.
> 
> --
> Nicolas Cueto
> 
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