Water simulation problem

[wojciech_jasiski]

Hello!
I have a problem with simulating a pond.
https://youtu.be/G_i9Tj1qiFI


The water should be smooth, and the only ripples/waves should be generated by moving objects: the leaves, and the jumping frog. However, there seems to be another source of noise/waves – something around the edges of the grid area, where the simulated mesh meets the "ocean mesh."
How to get rid of that additional noise and get a smooth surface simulating only ripples where the movement happens?

Here is how it looks in 3dsmax:


Thank you!

[georgi.zhekov]

Hello,

Maybe you get some instability of the liquid as the scene scale is relatively low - there are a few ways to solve that:

1 - You can increase the scene scale in the grid rollout, but this will cause the simulation to behave in a different way.
2 - You can start the sim earlier and let the liquid settle. You can just set the start frame to a negative one if you don't wish to offset your scene animation. This way the sim can start from frame -100 for example.
3 - In the Input rollout you can set the mode to Cache index and animate the cache index. Leave it to 0 or 1 just until your animation starts - this way the simulator will use only this frame and when the animation starts, animate it linearly from there.