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• why time expression behaves like this

why time expression behaves like this

Engaged ,
Jul 25, 2024 Jul 25, 2024

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Hi,

I am studying time expression.  as time expression  is different for   'Array values' so I need to understand it strongly. I totally understand scale. but position is giving me trouble.

I experimented 'position' with   time alone, then with plus, minus , multipy and divide. I understand all besides time with divide. I took a 20 sec long comp, 24fps, so total 480 frame. so when I apply  multiply on X position like

[position[0] * time, position[1] ] , then box moves 22.5 pixel on each frame from 0 pixel. I understand this increment. I get why box  moves on X axis  22.5 pixel on each frame.

but  when I wrote

[position [0] / time, position[1]];

then  x position shows  12960.0  and box gets kicked outta comp window!! 😮 😮

but why?

what is after effect doing when am writting  [position [0] / time, position[1]] , what's going on here?

I dnt understand what makes AE produces 12960 pixel on the position of X axis  and why the box moves so far? 😮

plz help. all I wanna know what after effects reads when I say divide x position with time and why AE shows 12960 pixel on X.

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Enthusiast , Jul 25, 2024 Jul 25, 2024

The frame duration is 0.04166666

``position[0] / time``

540 / 0.04166666 =  12 960

``position[0] * time``

540 * 0.04166666 =  22.5

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Enthusiast ,
Jul 25, 2024 Jul 25, 2024

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The frame duration is 0.04166666

``position[0] / time``

540 / 0.04166666 =  12 960

``position[0] * time``

540 * 0.04166666 =  22.5

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Be kind and respectful, give credit to the original source of content, and search for duplicates before posting. Learn more
Engaged ,
Jul 25, 2024 Jul 25, 2024

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