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Tutorial: How to Retime FLIP Simulations

Added 2020-05-08 21:16:53 +0000 UTC

Hi everyone, in this tutorial I demonstrate how to use the Retime node to time ramp a FLIP simulation in a smooth fashion with no jitter or stepping in Houdini 18.


Enjoy!

Tutorial: How to Retime FLIP Simulations

Comments

In most cases just adding substeps is the easiest workflow because you don't have to worry about retiming anything before or after the simulation.

2020-09-17 08:22:45 +0000 UTC

Hey Amir! Yes you can totally just simulate at a normal frame rate and use the retime. For some sims with heavy surface tension I go for a lower timescale because I need less substeps per frame. I know simulating at a different framerate to what you are playing it back as was always the Realflow way of changing the timescale don't know if it still is but I think that is why Jacktone is asking.

2020-09-17 07:46:58 +0000 UTC

Why do you need to do either one of those, actually? I mean, isn't the job of the retime node to interpolate between simulated frames? If you've simulated at high FPS (or simulated more frames using a lower timescale), then you already have the data and don't need interpolation, you just need to play it back at normal speed.

2020-09-13 19:19:38 +0000 UTC

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