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Using blender 2.9, I am trying to simulate water filling a vessel. I watched to some videos, like this one: https://www.youtube.com/watch?v=1YKDUPEZc1g&t=321s. Note that in this video, the animation has 100 frames, the flow beginning in the very first frame and lasting up to frame #51.

However, I am trying an animation with 200 frames with the flow beginning only at frame #75 and lasting up to frame #125.

The problem is when I set Physics Properties - Cache - Frame start: 75 and Physics Properties - Cache - End: 125.

When I play the animation from frame #1, the vessel is blocked by the solid cube domain, which disappears when the flow starts.

My question is: How to make water start pouring in the middle of the animation?

Thank you!

** EDIT: .blend file added. **

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  • $\begingroup$ show us your .blend file. $\endgroup$
    – Chris
    Feb 7, 2021 at 4:49
  • $\begingroup$ Hi @Chris. How do I add a file here? $\endgroup$
    – Brasil
    Feb 7, 2021 at 18:48
  • $\begingroup$ blend-exchange.giantcowfilms.com read and follow instructions $\endgroup$
    – Chris
    Feb 7, 2021 at 18:49
  • $\begingroup$ Thank you very much @Chris. I just edited the question with the MWE .blend file. $\endgroup$
    – Brasil
    Feb 7, 2021 at 18:55

1 Answer 1

Reset to default
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  1. in the domain, change the frames from 0 to 250 (or however your flow simulation lasts)
  2. do not keyframe inflow type (delete those keyframes)
  3. do keyframe use flow (74 - off, 75 - on)

enter image description here 4) free bake and bake all

-> works

visibility:

the domain itself normally is not visible, but the effector might be visible.

you can keyframe the visibility of objects here:

enter image description here

enter image description here

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