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14
Jan

C04- Modeling- Chair

      By now you must be getting used to Blender, isnt it? You must be getting comfortable with the Blender interface, its tools and where different buttons are located. I am sure you know how to check the model from everywhere in the viewport and how to zoom in and out to see the model up-close or far away. You must also know some keyboard shortcuts to perform some actions. Like, right click to select an object or ‘G’ to move it. The panel on the left of the viewport opens up using ‘T’ key and the one on the right open using ‘N’ key, remember? Don’t worry even if you don’t, we will ones again revise all the important tools in some future posts.

In the last post we learned to create a book rack. Would you like to create another object using the same method? Go ahead! you can also give some suggestions. What should we make?

Q: How about a Chair?

Great choice!

Lets make a chair.
CS3D-C04A1-ChairOverview

      We will make a chair similar to one in the image. Like before we will use a ‘cube’, we will change its dimensions to get different parts. We will use the first cube to create the base or seat of the chair. For this, change the dimension of the cube in x, y, z as 0.5, 0.5, 0.02 respectively. We had seen before that blender uses meter as its default unit. So then this cube is of size 0.5 m x 0.5 m x 0.02 m or 50 cm x 50 cm x 2 cm. Now we will duplicate this cube and make the leg of the chair. The x, y, z dimension of the chair are 0.05, 0.05, 0.4 i.e the leg will be of size 5 cm x 5 cm x 40 cm.

CS3D-C04A2-Chair-Base-Creation

      Now its very easy to create the remaining legs. We just have to duplicate this first leg 3 times and move them in their places using ‘G’ key. We will get all four legs. For the second leg, by pressing ‘X’ key after ‘G’ key, the cube will move only in the X direction. Lets select both the legs together. Press ‘Shift’ and right click on the other cube to select them both together. Duplicate them and move them to the back. Do this by pressing ‘Y’ while moving them. This will move them only in the ‘Y’ direction.

      Create duplicate of the 2 legs on the back and move them up, in the Z axis. We need to duplicate these 2 planks and have to rotate them to make them horizontal. First make a duplicate of one of the cube and move it to the center. Above dimensions, you will see parameters for ‘Location, Rotation and Scale’. Here we will use the Rotation parameter. Enter ’90’ in the ‘Y’ field of Rotation, you will see the cube rotate. We have just rotated the cube 90 degree in Y axis. Did you understand that? Well then, make another duplicate of this cube and place it in its right place.

CS3D-C04B-Duplication    

      We will now learn a new tool. If you look closely, the back of the chair is made up of 4 cubes. Sometimes we need it to be made of single part. We will work on that now, for this we will use a tool called ‘Join’. As the name suggest the tool joins many different parts into one single object. You can find this tool in the ‘T’ panel ( panel on the left side of the viewport) below the Duplicate button.

      To use this tool, we will select all 4 cubes of the chair’s back beforehand. Select any one of the cubes, hold ‘Shift’ and right click on the remaining cubes to select them. To join the selected cube, click the ‘Join’ button in the T-Panel. You can now see there is only one object instead of 4.

CS3D-C04C-Joining-Objects    

      You might not realize the exact use of this Join tool yet. Even now its not of much use. Lets just say that we are checking various tools for our purpose. You can check other tools by yourself. The name of the tools usually suggests its functionality. I will always help you out if you have any question.

      We can take this model to go a little ahead. Will you be comfortable if we learn something a little more advance? 🙂

      Now if you see, we can see the chair at the center of the viewport. Look closely, it looks like it is beneath the floor. This is considering the Grid as a floor, Grid is the horizontal graph like net in the viewport. You can see the chair is half above and half below the floor, right? This Grid is present in all software like blender. It is used for all calculation and measurements. The center of this grid is the center of this 3D file. This makes all the calculations easier. We will discuss this in details later, for now let us keep our chair ‘on the floor’. We will have to move all the objects up in Z axis. Select all object one by one using the shift key. Now press ‘G’ to start moving (move is known as Grab in blender, hence ‘G’). Then press ‘Z’ to move the chair up. Use the mouse to move the chair above the floor, this need not be accurate. Now our chair is ready. There is just one more thing left to do, that is to name all our chair parts one by one. Its same like we name our folders and files inside them, this will help us find the parts easily later on. We will need the outliner window from Blender.
CS3D-C04D-Outliner     

      Do you remember, we learned about this outliner in one of our earlier posts?

Q: Yes, the one that shows us the list of all the models.

Now we will use it, if you see in the outliner the different parts of the chair are named as ‘cube.001, cube.002, cube.003’. This is because after duplicating the first cube, blender names them automatically. Blender and other similar softwares need the parts to have unique names. To avoids confusion, naming 2 objects with same name is not allowed. Blender, for the same reason assigns different names automatically. If you can imagine, one blender file with many objects like this chair and table, rack, Tingu also, then there will be chaos in the outliner. We will not be able to understand which name is for which part. Hence you might be able to imagine how important it is to name the parts that anyone can understand and identify easily.

      Let us discuss about this chair for now. If you are not able to see the Outliner window completely then you can adjust its size. As you can see from the above image, you can adjust the size of outline or any other window by dragging the border of any section. Change the size so that you can comfortably see the names in the outliner. Now select our main plank,which was made for the seat. A select object can be identified easily in many ways. See this image.
CS3D-C04E-Naming Highlits     

      Here the main plank is selected. See the areas marked in red in the image. On the bottom left corner of the viewport you will see ‘(1) Cube’. Here Cube is the name of the selected object. If you select any other object then you will see its name displayed in this area. You will be able to see an orange border around the selected object. The outliner window will show the name of the selected object in white and the symbol before the name will be highlighted in opaque orange circle. These indications will show us which objects are selected and what is its name. Next we will change its name ( we will rename the object).

CS3D-C04F-Naming     In the outliner we can change the name of any desired object by double clicking on its name. Now change the name of the objects by selecting it one by one. For the purpose of this series I’ll provide you the names so that we get consistency in everyone’s files. You too name your objects accordingly.

      SEAT, for back – BACK REST, for two front legs FRONT RIGHT LEG, FRONT LEFT LEG, and for two back legs BACK RIGHT LEG आणी BACK LEFT LEG. This will give us six objects.
CS3D-C04F-Outliner Zoom     

      Now save this file. Save it as ‘Chair-01′ in the ’02-Models’ folder.

CS3D-C04G-File-Save

      Now that our chair model is ready, you can create your own models. Let me know about if you have any doubts and be sure to share your experience. Surely you can share anything, your queries, experience, suggestions or anything else related to Blender or animation. 🙂 Only if you share or react, I will be able to understand your difficulties and provide answers and solutions.

      Right! So, lets meet next time…

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