| after effects
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 | after effects
by verita on Dec 17, 2006 at 4:54:47 am |
hello creative cows,
I would be happy about getting tips for this problem:
I try to circle an object (planetball) with keyframes in xyz-position manner.
Can't find solution between the first and last keyframe to get a loop without
getting a visible break between start and end of movement in my ramshow.
I don't know do I need expressions, because about this I have very little
knowledge?
Thankyou for every tip
with best greetings
verita
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• | | | |  | Re: after effects by Colin Braley on Dec 17, 2006 at 6:14:54 am |
Just make sure the position value of your last keyframe is equal to that of your first keyframe. Then apply the following expression:
loopOut("cycle")
~Colin
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• | | | |  | Re: after effects by yikesmikes on Dec 17, 2006 at 6:18:19 am |
If you have one revolution keyframed, and the first and last keyframes are the same you might try this loop expression:
loop_out("cycle",0)
But to get circular movement without keyframes, expression only, try this expression on position by Dan Ebberts (there are other expressions but I think this is the most controlable):
r = 50; //radius (in pixels)
f = 1; //orbits per second
angle = time*Math.PI*2*f;
value + [Math.sin(angle)*r, -Math.cos(angle)*r]
Just change the radius and orbit per second to taste.
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... and you should set your work area to end 1 frame before the loop starts again.
For example, if frame 0 is the same as frame 50, the last frame of the work area should be 49.
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• | | | |  | Re: after effects by verita on Dec 19, 2006 at 1:39:38 am |
hello steve,
my first step to a forum.
Thank you much.
I've got blind of checking and after reading your
message I could therefore finalley find my mistakes.
Two mistakes, forgot realley this time-management
and made instead curious things ... (forget about)
Wish you a very good ending year with best with best
2007 wishes
Verita
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• | | | |  | Re: after effects by verita on Dec 19, 2006 at 5:02:06 pm |
[verita] "hello steve,
my first step to a forum.
Thank you much.
I've got blind of checking and after reading your
message I could therefore finalley find my mistakes.
Two mistakes, forgot realley this time-management
and made instead curious things ... (forget about)
Wish you a very good ending year with best 2007 wishes
Verita"
[verita] "hello steve,
my first step to a forum.
Thank you much.
I've got blind of checking and after reading your
message I could therefore finalley find my mistakes.
Two mistakes, forgot realley this time-management
and made instead curious things ... (forget about)
Wish you a very good ending year with best with best
2007 wishes
Verita"
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