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flash (macromedia) : how do smooth out motion tween???


SarahL2
12/16/2005 9:36:35 PM
hello.

I have done an animation which has a logo moving from top right of page,
basically to bottom left, with a size increase>decrease in there too. i don't
know why it is 'jumping/flickering/jittery' (not quite sure best term to
describe it).

it appears to 'catch' and makes the animation flicker at the same places every
time you play it. and then for the last three seconds the movement is quite
uneven.

due to some very fast movement in an earlier section of the animation I've
used 36fps. when i used fewer frames per second it looked too slow.

i've tried this using the jpeg logo image, and also tried using trace bitmap
change it's properties, but it seems to do the same thing.

is there something i should be checking for or changing to help smooth out the
movement - both across the screen, and the change in size?

thanks for your time!



Swiftfire
12/17/2005 12:34:00 AM
Hello,

Moving jpeg around's is not always the best way to make a tweening effect.
Even if it looks good on your machine, on a machine with a lower video card
configuration it could look a lot worst and saccadeted. Because a jpeg is not a
vector graphic it as a limit on morphing/changing size swiftly .

I would suggest doing alpha/fade in/out effect instead of moving jpegs around
the screen. Escpecilally if your target audience does not have all great
performance box.(p3++ and good video card)

Andre
SarahL2
12/17/2005 1:01:26 AM
thankyou Andre.

i suspected as much re: jpegs.

it is also happening on the vectors, though. and I can't fade in/out because
the image never leaves the screen - just moves and changes size.

i THINK it may be stalling around the points where another keyframe in another
layer starts in the flash timeline - not necessarily a related one, even layers
which are relative to a completely different section of the screen/objects seem
to be affecting the smoothness of the playback.

is this normal?

is 36fps ok to use? the file size is still relatively small so it's not a
problem there.

thanks again for your time.
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