All language subtitles for 02. Inflows & Outflows

In this video we're taking a look at the inflow objects in the fluid simulation here.

I've created a basic scene where we have an outflow down here and we have an inflow up here.

The outflow takes away fluid from the simulation.

So what we can do to demonstrate this is also let the inflow.

And we can see here there is a another checkbox called the use inflow.

What this allows you to do is animate when this object is emitting fluid into your scene.

So what I want is for this scene to emit fluid for about 30 frames and then I want it to turn off.

So what I'm going to do is place my cursor right here at frame 30 and then I can hit this little button

on the side to add in a key frame to this use inflow node.

Then I can go to the next frame by hitting the right arrow and then uncheck in this and adding in a

nether key frame by hitting that little box on the side.

So it's going to emit fluid for 30 frames and then turn off at frame 31.

Now if we were to make this right now there's not going to be that much fluid in the scene.

That is because we need to turn up the initial velocity.

If we turn this on we can enable this to emit fluid at a constant rate.

I want it to emit fluid going down so I'm going to set the negative z direction up to about negative

one point five.

Once we do that we can now bake it in and this will constantly emit fluid going in the negative direction.

If we take a look at the outflow object we have all of the basic settings here once again we have the

sample subsets we have the emission surface.

So if we were to turn this up the outflow will affect a bigger area.

I'm just going to leave it at 0 for now.

Now if we select our domain we can go ahead and bake in this simulation.

We can see down here it's baking and once it reaches frame 50 we can see it now free restart and play

this.

We can see it's constantly adding wood and it's constantly taking away the fluid because this is the

outflow.

Let's look at that one more time.

The higher you set the initial velocity values the faster food will be emitted into your scene.

So here you can see I set this value to negative 4.

And now if we play our simulation we can see fluid is being emitted a lot faster.

So if you want more fluid more quickly you can turn these values up down here.

So there you go.

Those are the settings in it the inflow and the outflow and in the next video we'll take a look at collisions.