Particle system, decrease size of particle over lifetime

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Max123

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Posted: 26th Apr 2016 18:40

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Hello,
I hope this question hasn't been asked and answered before (At least I haven't found a topic about it)
Is it possible to decrease the size (or increase it) of a particle over lifetime.
Thanks in advance.

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CJB

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Posted: 26th Apr 2016 20:06

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Hi Max123. Sure, you need to use AddParticlesScaleKeyFrame. You can set the particle to scale up or down at certain points throughout its lifetime.

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Max123

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Posted: 26th Apr 2016 21:04

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I'm so glad you helped me out

Thanks a lot!
Just one more question related to this topic:
I used this: AddParticlesScaleKeyFrame(1, 1, 0.5) and thought that, if I understood the documentation right, each particle should become half of its previous size when it was alive for one second.
The problem is that this happens immediately and not just after 1 second has passed. Am I missing something?

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IBOL

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Posted: 26th Apr 2016 21:10

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i am so glad there is a command for this!

I would suspect that the answer to your second question is that you need to specify an "initial frame" at time zero, with scale of 100%.

http://ibology.org/

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Max123

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Posted: 26th Apr 2016 21:12

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Thank you for the fast answer. This solved the problem