= Getting Started With Blender =

In this tutorial you will learn the basics of working with the 3d-modeling program Blender within one hour. Using Blender can be very confusing, especially if you have never worked with 3d-modeling software before. But don't be discouraged, once you have learned the peculiar function of the mouse in Blender and remember the most important hotkeys, you will be able to create complex scenes and objects in no time. At the end of this tutorial you will have created a simple model of a house. One more thing before you start: if you are stuck, do not hesitate to ask for help. If no help is around, write an email, use Google or check the Blender manual online for quick reference.

== The User Interface ==

After starting Blender, you will see two large docked windows and the main menu bar at the top of the screen. The larger window is the 3D-View. Here you will see the models you create. Below there is the Buttons Window, where you can adjust properties, create different materials or render the scene. For now, some basics about using the two docked windows will be enough:

||Left-click the border between two windows to adjust the size of them. Every window has a header containing some content-related controls. By right-clicking into the header, you can select its position in a small menu. You can also hide the header, but this is not recommended for the beginner.||[[Image(button1.png, right)]]||
||With the small drop-down menu at the very left in a window's header, you can change the type of the window. Right now, you have 3D-View and a Buttons window; this is the combination you will use most of the time. Anyway, try to play with the view menus and adjust your windows the way you want them. You may also use more than one window of a kind.||[[Image(button2.png, right)]]||
||You can also split a window to create a new window or you can join two windows to reduce the number of windows. To do this, click the border of a window with the middle mouse button. In the appearing menu, you can select whether you want to Join or Split windows.||[[Image(split.png, right)]]||

== 3D-View ==

We will now concentrate on the 3D-View, the large window showing your scene and your models. The Blender 3d-world has three cartesian coordinate axes: the x-axis (red), the y-axis (green) and the z-axis (blue). In the lower left corner of the 3D-View, you see the current orientation of the three axes. Using the number pad of your keyboard, you can adjust the view. Hit 2/4/6/8 to rotate the view in a predefined direction. Hitting 7 jumps to top view, 1 to side view and 3 is for the front view. 5 toggles between perspective view and orthonormal view. 0 on the number pad switches to camera view. Here, you will see three rectangles marking the cameras view. You will not be able to rotate in camera view, since our camera is still a static object, so you better switch back to normal with 7/1/3. With +/-, you can zoom in or out.
You can undo all changes to your objects by pressing Ctrl + Z.

||'''Selection'''[[BR]]Use the right mouse button to select an object in 3D-View, for example the cube, which has been there from the beginning. It will be marked with a pink border. Initially it might be confusing to select an object with the right mouse button. Practise it a few times and hopefully you will soon get used to it. This is a frequent point of criticism against the Blender GUI.||[[Image(select.png, right)]]||
||'''3D-Cursor'''[[BR]]Left-clicking in empty space sets the 3D-Cursor coordinates. The 3D-Cursor is used for many things, for example to place new objects.[[BR]][[BR]]Remember that you can only specify two coordinates, so you might have to repeat this from another point of view.||[[Image(cursor.png, right)]]||
||'''Adding Objects'''[[BR]]To add a new object, set the 3D-Cursor to a point of your choice and hit the space bar. In the appearing menu, select Add -> Mesh -> ... to ad a new geometric object to your scene. It will be created at the position of the 3D-Cursor.[[BR]][[BR]]Blender will probably switch into Edit mode automatically, but we don't want that for now, so hit TAB to exit Edit mode. We will discuss Edit mode later.[[BR]][[BR]]'''Note:''' You can delete a selected Object by pressing X.||[[Image(add.png, right)]]||

== Translation, Rotation and Scaling of Objects ==

||'''Moving Objects'''[[BR]]To move an object, select it and hit G (grab). You can now move the object freely with your mouse. If you hit G and X, Y or Z afterwards, moving the object will be limited to this specific axis. Hitting G and Shift + X/Y/Z afterwards will lock the specified axis, so your object will move only parallel to the other two axes.[[BR]][[BR]]Left-Clicking on the red triangle in the header of the 3D-View makes the three grab controls appear in the object center (colored arrows). You can also use these controls to move an object directly, by dragging these arrows with the mouse.||[[Image(grab.png, right)]]||
||'''Rotating Objects'''[[BR]]It is just as easy to rotate an object. First, you can select an object and hit R (rotate). You may also hit R and X/Y/Z afterwards to rotate only along the specified axis.[[BR]][[BR]]Second, you can also click the small green circle in the header. The rotate controls (colored rings) will appear. Use the mouse on them to rotate along one axis.||[[Image(rotate.png, right)]]||
||'''Scaling Objects'''[[BR]]To scale an object, select it and hit S (scale). Now you can scale it freely in all dimensions. To scale only in one dimension, hit S and X/Y/Z afterwards. To scale in two dimensions, hit S followed by Shift + X/Y/Z .[[BR]][[BR]]Alternatively, click the blue square in the header to bring up the scaling controls (colored arrows with square heads). Drag them with your mouse to scale in a specific dimension.||[[Image(scale.png, right)]]||
||'''Numerical Input'''[[BR]]Sometimes, it may be convenient to modify an object in discrete steps. You can hold Ctrl while doing any of the above transformations to alter the model in discrete steps. While transforming, three numbers in the header of the 3D-View indicate to current translation length,  rotation angle or scaling factor, according to which transformation you are doing.[[BR]][[BR]]Furthermore, it might be useful to enter numerical values or to check how big your object is. Press N to bring up a small window labeled "Transformation Properties". The displayed numbers indicate location, rotation and size of the selected Object.||[[Image(transform.PNG, right)]]||

== Edit Mode ==

== Extrusion Modeling ==

== A First Model ==