All language subtitles for 09. Baking Cache

Hello everyone.

And in this video we're going to look at the cash settings and how the baking cash works in Manzanillo.

The first thing that we need to talk about is the file of where your data goes to when you bake.

You can see right here this is where it goes to.

And this is a temporary file.

If you were to bake in a simulation and then close blender and open it back up later you would lose

the simulation.

So if you want to save this you need to set a custom bake folder to do that.

You need to click on this button here and then navigate to where you want to save your file.

Once you have found the folder all you have to do is click accept.

And now all of that data will go into that folder that you specified right here.

Let's go ahead and test that out by hitting back data up here.

We can see here it's starting to bake.

Once it reaches a value of 50 it will stop and we can go ahead and take a look at that data.

If we take a look at that folder we can see two different folders right here config and data.

If I open up these we can see a lot of different files in this data is all of the animation and fluid

simulation data for the particles right here.

If I play this we can see this is what it looks like.

All of those files are storing this data.

If we were to enable the mesh down here and bake this in through would create a new folder with the

mesh data as you can see right here.

So if I open up this we can see all of the mesh data is coming in just like that and it's going through

the different frames down here

same thing goes with the particles.

So if you were to bake in the particles it would create a another folder.

You want to be careful with baking large simulations because right now you can see this is already two

hundred and eighty seven megabytes and creating a really high res simulation will take up a lot of space.

I've had fire simulations where it takes almost 40 gigs to store the data.

So you want to be careful about saving caches or you might fill up your harddrive pretty quickly.

Now let's go ahead and move on to the settings down here that we can change.

I'm gonna go ahead and free this data so we can see how this works.

And the first thing that we have here is the type of modular modular deals with the different modules

for baking.

We can see there is a module here or we need to bake in the settings then we need to bake in the mesh

and then we also need to bake in the particles if we enable these.

If I change this over to replay this will give us a real time setting of how our simulation looks.

But as you can see this is really slow and sometimes it even breaks as you can see their frame about

frame nine just breaks and it doesn't really look good.

So this is a real time simulation where you can see how this looks but it's extremely slow as you can

see right here.

If we change this over to a final what this does is it allows us to bake everything at once.

You can see there is no button down here for the mesh and there is no button up here for the settings.

So instead of going through each of these I can just go ahead and bake all and it will bacon everything

all at once without having to go through each one.

So if you know exactly what you're trying to create you can go ahead and switch this over to final and

bake everything all at once.

I like keeping this on modular because this allows me to look at the particles and seeing how those

look before I bake in the mesh or the other particles down here.

Next up we have the frame a start and the frame and this controls how long the simulation is.

So if I was to change the end frame I can go ahead and put that in here I can go like 250 and now the

simulation will last for two hundred and fifty frames.

I can also change the start frame right here by switching this up to maybe like 15.

So nothing's going to happen for 15 frames once it reaches frame 15.

It will start the simulation since we did the replay option down here.

It automatically bakes in a little bit of frames.

So I'm just going to go ahead and bake data stop that and then free that data.

So it just doesn't display it.

The next thing that we have to talk about is the data file format.

There is three options here we have unique cache which is the blender way of compressing the files and

making the cache file a little bit smaller.

We also have the open VTB we'll talk about that in just a second and then we have the raw cache.

This is the raw file format without any compression.

This will be a lot larger than the unique cache so I recommend you stay on this file format here open

VTB is pretty cool and this allows you to export the information from your simulation as a VTB which

you can then import into different programs such as UDP or unity or something like that.

We will talk about this any later video and we will actually be importing it into unity so stay tuned

for that underneath the data.

We also have the particle file format and there's currently only one which is just the unit cast we

just leave it right there and then we also have the mesh file format.

There is binary object files and then object files right here binary has a little bit of compression

which will save space on your harddrive and then object files has no compression so it will be a little

bit of a larger file.

I'm just going to leave it on binary and that's basically all of the settings in the cache.

So keep in mind if you don't set a custom cache folder right here it will.

So keep in mind if you don't set a custom cache folder you will lose the simulation once you close the

program.

So if you're wanting to render like half of it or keep working on it make sure you set a custom folder

by clicking this button on the side.