Animation

Here we can animate practically all the values of a fluid. Being able to animate its values allows us to create incredible effects.

We can see different buttons in the animations, let's describe how they work:

Start | Duration: Here you can choose in which frame the animation will start and how many frames it will last.

Increase | Decrease: If you want the value you are animating, once the animation is finished, to return to its initial value, you can use this tab. Increase indicates how many frames it will change from one value to another, and Decrease determines how many frames it will return to the initial value. 

From | To: Indicates the initial value of your parameter and the final value you want it to have.

Let's see an example.

We want our viscosity to increase from 0.5 to 6. We want it to do it from frame 25 and we want this effect to last 50 frames. In Increase we indicate how many frames the step from 0.5 to 6 will last. If for example we set a value of 5, our viscosity will go from 0.5 to 6 in the time that lasts 5 frames. If we also set the Decrease value to 5, it means that once we reach the duration of 50 frames, the viscosity value will drop from 6 to 0.5 again in the time of 5 frames.