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jp_uk81

Continuous animation performance

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Hi Guys, 

I'm working on an animation that has the same structure as this pen.

The effect I'm trying to achieve is Items flowing across the bottom right part of the screen at different speed.

I've got 2 questions: 

 

1) I can't understand why at the start of the animation the cats are sitting on the bottom of the container having given them a "top" of 100vh and they don't start from below that container.

2) I'm sure this is not a very performant way to animate this. Is there a better way to do it? Basically I don't care the order of the animations as long as they travel at 45degrees from bottom to the top right of the screen. Animations can occur randomly and they should be continuous.

 

Hope that's clear,

Thank you,

Jp

 

See the Pen JmgBKg by Jp_uk (@Jp_uk) on CodePen

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Hey Jp!

 

You set the bottom to be 100vh, not the top.

 

#pub-anim img{
  position: absolute;
  bottom:100vh;
}

 

As far as performance goes, DOM element-wise, that's pretty much it. The only way to get more performance is to move those elements inside a <canvas> and run a ton of those calculations on the GPU. But, if you only going to have a dozen or so cats, you should be ok.

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Oh dear! oh dear! silly me.

Thanks Dipscom!

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