Original subtitles

Hello everybody and welcome to

this new episode in where we are going to talk

about another concept which is called Reverse Faces.

Well, when you are drawing in SketchUp,

you will see many times that your faces are colored

either in white or this kind of gray or blue color.

This is because, as you already know,

SketchUp is facing modeller,

not as solid Modeller.

So it is treating each phase individually.

And we can say that its phase has two sides,

the front side, the backside,

by default, the front side is white,

this one, and the backside is this kind of gray or blue.

If I select any phase and I go to Entity Info tray,

you will see here those thumbnails

representing those two sites.

The first one for the front side

and the second one for the backside.

Right now, they are both the

same because it is selected this default style.

But if I apply any color,

I go to materials, select.

I go here and I say colors, and I choose e.g.

this pink, I apply this pink to this backside phase,

then as it is still selected,

you can see here that color for the backside

and this another default style for the front side.

Here it is represented those two colors,

the white and that blue color for the backside.

So the thing here is that it's very

common that when we are drawing a sketch up randomly,

Our Faces take the backside color when we

actually want that front color towards us.

And then is when we have to use that to

call reverse phases, Let's do it.

E.g. here with the cube.

On the left side, we have this cube with

all the phases using the front color.

And on the right side,

we have just the opposite example, my advice here,

and you will see during the course

that I will do it every single

time is to fix this situation immediately.

So it will become like

a habit for you to reverse the phase.

Place the front color to us, the camera, e.g.

here, if I click on this face and I say right bottom,

and I go to reverse faces,

then this phase is already fixed.

Then I should do the same everywhere here.

I select all the faces,

right bottom reverse phases.

Here we are. Maybe you are

thinking what is the reason for doing this?

Firstly, is because it is very good

to have your drawing organized,

but at the same time,

having the backside color to us,

you might have bad consequences

in terms of performance when you are

exporting your SketchUp file to

our rendering software or our 3D printer.

Both of them use that information for pointing

a normal vector towards the interior or the exterior.

So it could end up in an error

here in a SketchUp actually doesn't matter so much.

E.g. if we are applying materials and I

will recover those backside phases.

And now I'm going to materials select.

Let's pick up e.g.

this brick antique texture.

I will select with three clicks,

all the entities connected here.

Then letter B for the Paint Bucket Tool, one-click.

Here we have this texture applied to the cube.

I can do exactly the same to this

another queue and there will be no differences.

So we can think that it is not

needed to do this reverse faces.

But as I already told you,

the problems will appear when we export

this cube to our rendering software or a 3D printer.

In my experience, not always those problems will ACU,

but it does exist the possibility of the error.

Another tool related with

this Reverse Faces is called orient faces. Here, e.g.

in this cube, we can check

how this phase is currently oriented,

but the rest are not.

Instead of choosing

every single wrong phase and fix them,

I can choose the correct one,

right bottom orient faces.

And then the program is intelligent

enough to recognize all the phases

connected to our selection and orient

them in the same direction as our reference.

Finally, if I go to Styles,

I will collapse the entity Info.

Here, you will find, first of all,

a thumbnail about the default style with

those color I told you the white and the blue one.

But my tip here is going to

Edit and here go to face settings.

Here you will be able to change and

customize that front and back color,

creating your own style or

modifying the one you are using at that moment.

So I'll click on

this color and I will change e.g. this red.

Or I can go to the color wheel and say

that I want this red all the time

with the purpose of making

that backside color much more

different than the front color.

Furthermore, if I go to style and I click this option,

displays said that he using all same,

which can be found here as well.

Then you will be able to spot Where are you

using that back side color and then fix it.

E.g. in this cube,

where we applied that brick texture,

three clicks, pattern, reversed faces,

it is already corrected.

And then I can go back to this,

say that with textures option.

Now that brick texture is applied inside

the queue for spotting this backside color's faces,

we will be able to use as well.

And let's say automatic tool,

which is not native from SketchUp,

it is an extension.

It is called solid inspector

and then it will be easier and faster.

But we will see that when we talk about plug-ins.

Now, it's time to say goodbye.

In the next episode,

we will jump to another block of

information and we will start

drawing in SketchUp using

the line tool and freehand tool.