I am also having a similar unsightly antialiasing or "ripping" issue
that I was hoping for a solution. I have a jpg in flash that i'm
skewing and distorting while animating. The combination of these
effects is causing a very noticeable ripping artifact in the image
where it looks as if the image is literally breaking apart and not
being able to catch up to the animation.
Does anyone know or have a proper sample of a technique to avoid
this? Smoothing on, of course...anything else?
-lm
On Feb 5, 2007, at 3:27 AM, Zeh Fernando wrote:
I guess an algorithm could be conceived that would somehow infer
sub-pixel
values, but this feels like it would be unnecessary faff, and very
slow.
Anyone know of a quick-and-dirty way of smoothing a bitmap? I
guess I could
render at a higher resolution than needed and scale down, to mimic
calculating sub-pixels, but that also feels inefficient. There
must be a
clever cheaty way of doing this?
From what I know, rendering at a higher size then scaling is the
only correct way; it's more or less what 3d cards do when rendering
antialias on games.
All "antialiasing" techniques that take an image into account and
try to create antialias out of thin air will just be different
blurring techniques and will fail under certain specific
situations. If you only have 'rounded' linear art as the example
you linked to this might be feasible as you won't have to worry
abour corners, so blurring + a few different threshold levels will
create some nice antialias for you... but I personally think
rendering at a higher size then scaling would be faster.
Zeh
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