Isotropix Forums

Hi, friends:
I have a plant with 5seds wind animation, how can I make it to a ping pong loop? Need I use some expression on the frame attr of abc?

Thanks!

Hi,

There is no ping pong loop behavior for animation. I guess it would be doable with expressions.

Cheers

Hello,

I need this ping pong animation of abc files behavior in a project. Is there a way with an expression in the animation behavior option to get this working?
Please help!

Thanks Marcus

You can utilize expressions to ping pong any animation.

Code: Select all

abs((abs(F)+(25)-2)%(((25)-1)*2)-(25)+1)+1

Where 25 is the range so it will go 23,24,25,24,23 etc.

Feel free to adjust is as needed

Cheers
Kai

you can also use this expression :

Code: Select all

rangeStart = 0;
rangeEnd = 25;
currentRangeId = ceil(F / rangeEnd);
fwd = cycle(F, rangeStart, rangeEnd );
bck = rangeEnd - fwd;

if (currentRangeId % 2) {
output = fwd;
} else {
output = bck;
}
output

And change the rangeStart and rangeEnd base on your animation range. You may need to change the code if the animation doesn't start at 0 to identify the proper chunk.

You can multi-select all the components inside your reference and paste this expression or do it on one and copy this expression get_double("NAME_OF_THE_OBJECT_WITH_EXPRESSION.frame")

Cheers

Thank you very much!
I will try these expressions!

Cheers Marcus

qinyao wrote:Hi, friends:
I have a plant with 5seds wind animation, how can I make it to a ping pong loop? Need I use some expression on the frame attr of abc?

Thanks!

abs(313*sin(F*PI/rand(20,30))) 313是总帧数，我是用来模拟树的延时摄影，不知道是不是这个意思