## Create a doughnut

Let's create a doughnut by using [Primitive] command.

### Preparation

Please create a new document by [Menu > File > New].

Next, please check [Object Panel] and [Material Panel] in [Menu > Panel].

Note: These panels are convenient for editing though a method to use each panel is not described in detail here.

Object Panel and Material Panel are shown at the left of the main window.

Now it is ready.

### Create a torus

Now create a torus for a doughnut.

Select [Primitive] command, and click a torus in the Sub panel.

A torus is displayed as wires in the view.

Click [Property] in the Sub panel, and change [In] to [30.00]. Size of the torus will be changed.

Note: [In] value can be input from [I: xx.xx] in the view.
Note: A size and a number of a segment can be changed in the [Property]. You can change them.

Click [Create] in the Sub panel, and a torus will be created.

Select [Select] command for exiting [Primitive] command.

Please call [Menu > Edit > Unselect all].

### Rename an object

The object's name is "obj1", displayed in the Object panel. Let's change the name.

Click [Prop] in Object Panel.

Object Property has been opened. Please input "doughnut" in the column in [Object's name].

Click [Close] button in the Object Property, and the object's name in the Object Panel will be changed.

Note: Please specify a name to understand easily. It is convenient when many objects exist.

### Coloring a doughnut

You can put a color to an object by using a material set in the Material panel.

At first, create a material for the bottom of the doughnut.

Please click [Prop] button in the Material panel.

The Material Property is opened. Please click on the column for input a name displayed "mat1", and input "plain" by a keyboard.

And change a base color like a doughnut in the Material Property. You set H=36, S=76, V=95 for a color.

Please push [Close] in the Material Property, and the doughnut becomes the specified color. "plain" is displayed in the Material Panel.

### Coloring a doughnut (2)

Now you assign a "chocolate" material to the top of the doughnut.

Click [New] in the Material Panel, and a new material "mat1" will be created.

Click [Prop], and rename to "chocolate" and set a color with H=24, S=86, V=40 like as "plain".

You assign this "chocolate" material to the top of the doughnut.

First, change the direction of the view for easy selection. Please call [View header > Disp > View Panel], and click [Initialize]in the View Panel to reset the direction of the view.

Please click [X] button at the right top of the View Panel to close it.

Next, click a title in the View header, and click [Front] in the menu.

The direction of the view becomes front.

Please select [Rect] command.

Please begin dragging from the top of the doughnut (A), and release dragging at the B.

The top of the faces in the doughnut will be selected, and become green. The bottom side of the faces is left pink because they are not selected.

Please select [Chocolate] in the Material panel, and call [Menu > Selected > Set material to faces].

The top of the doughnut becomes the chocolate color by the "chocolate" material.

### Change the properties of the material

Let's change the properties of the "chocolate" material to become gloss.

Please select "chocolate" in the Material Panel, and click [Prop]. Material Property will be opened.

Please change [Specular] to [0.70], and [Power] to [10.00].

Note: You can specify other values for [Specular] and so on.

The doughnut will become gloss.

Before | After

### Completed

Let's change a little more easy to see the donut.

Please click [Pt], [Ln] and [Fc] buttons in View header, and points, lines and faces will be shown or hidden.

[Pt] and [Ln] buttons are off, and [Fc] button is on. It may be easy to see.

Note: It may be easy to see and edit objects by switching the visibilities of vertices, lines and faces with [Pt], [Ln] and [Fc] buttons in view header. Please switch them if necessary.

And when you change [ZX plane], [Scale] and [Axes] in the view header off, the view is displayed simply like as the top image in the page.

### Save an object

Let's save the finished doughnut.

Please call [Menu > File > Save as].

Please input a filename and select "Metasequoia object (*.mqo)" as a type.

### Application

You can make another appearance by changing properties of the "chocolate" material. Let's try to change various values when you get used to the operation.

Select and Move | Create a star