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In this video, we are going to go over to the keyboard shortcuts that are used primarily in the 3D view but also in other kinds of window types. First of all you should know that almost every key on the keyboard does something. It's a very common Blender thing to have the mouse in one hand and your other hand over the keyboard and the keypad because you are often mousing and using the keyboard in conjunction. So for example, here we have one of the opening scenes to the Big Buck Bunny movie, which in an open asset, which can you can download for free and this is from Scene 1, Shot 2.
This is a picture of a flowing stream. So in here I'm going to right-click on this clump of grass and demonstrate the very first keyboard shortcut which is X . X deletes the object, when you press X a pop-up comes up just to make sure that you really do want to delete that object and if you left-click and confirm it, away it goes. The next most common command is if you have selected an object to press G to grab it and the easiest way to remember all these shortcuts is just to simply mnemonics and kind of learned Blender language.
So if I want to grab something, I just press G and now I'm grabbing and moving this object around. If I select an object and press R, I'm rotating it. R to rotate and if I have this clump of grass here and I want to make it bigger I want to scale it up or scale it down. So I press S and moving my mouse scales it up and down. Again, if I want to confirm where I'm scaling and I just left-click to drop it in place or if I'm in the process of scaling something let's say, I don't want to either scale that object or just changed my mind, I just can right-click and that kind of aborts that operation.
I can also hide objects from view by yes, you guessed it, pressing H. Now a lot of these commands too can have an opposite effect. So like I have just hidden that clump of grass. If I want to unhide it, I hold the Alt key and press the exact same hot key again, which in this case would be Alt+H unhides that object. When I grab and move something, I'm moving it around in 3D space and I may or may not want that.
If I want to move it in a certain direction along a certain axis, I can constrain the movement of the object after I press G, by pressing the letters X, Y or Z. In this case I'm pressing Z and now I'm moving this object, no matter how I move my mouse. If I move my mouse just basically left and right, I'm only moving it up and down a little bit. So the object is not going to move freely in 3D space. It's going to be constrained to move along that axis.
While I'm moving it, I can change my mind if I for example, picked the wrong the axis which I frequently do, I can just press X now and now I'm moving this clump of grass along the X-axis direction only. The Tab key is the next most common key I would like to talk about and that tabs you into Edit Mode. So when I have my grass selected and I press Tab, I go into Edit Mode, which changes the mode down here in this 3D View header.
I'm now changing the shape of this grass clump and when I press Tab again, I tab out of Edit Mode. So that's sort of like a radio button kind of a thing where I'm tabbing one time and tabbing again to exit the Edit Mode. The next most common is the Spacebar, the Spacebar brings up a context sensitive menu of the most commonly used functions that you would do in this particular window or for this particular kind of mode. And I just pressed Escape to put that menu away.
Lastly, we are dealing with an animation program that deals in time and we use the cursor keys on your keyboard to navigate through the animation and time. In this case, the right arrow advances by one frame in the animation and if I scroll out here, you can probably see something's moving around. If I use the Left Arrow, I'm backing up in time and you can see the frame number changing in the lower left-hand corner of the 3D View, and if I press the Up Arrow, I'm advancing by ten frames and the Down Arrow backs me up in time by ten frames.
So the Left and the Right Arrow by one frame and Up and the Down arrow are by ten frames. The keypad also doesn't go to waste. The keypad in 3D View changes your perspective, pressing 3 brings me to the side view, 1 brings me to the front view and 7 brings to me to the top view, 0 brings me to the view of the camera and shows me what the camera is going to see. Pressing the intermediate keys 4, 6, 2 or 8 rotates that perspective of that particular view by let's say 15 degrees and that number of degrees is actually set in your user preferences.
The last key that I would like to cover that kind of trips people up sometimes is the slash key, the slash key hides everything else and puts you into what's called Local Mode or you are looking at only the selected object and everything else is hidden. The slash key is a toggle key and so when you press slash again everything else is revealed. So a lot of people say, oh! My gosh, I hit something and everything went away, where did everything go? Well it's still there. It's just you have to hit the slash key again.
The plus key and the minus key on your keypad do the same thing as your mouse wheel. So as you have seen almost every key has a use, really nothing is gone to waste and the best way to find out the exhaustive list of what every key does is to click on the Help and the HotKey and MouseAction Reference window. Now if this window is too big to fit on your particular display, you will have an up-down arrow selector here and I'm going to go ahead and try to resize this to show you that these up and down selectors come up to scroll the window up so you can get to the whole list.
This list is broken up into what do the arrows do, what do the function keys do, what does each of the different letters do. So I mentioned that H to hide for example and depending on the kind of window or the kind of object you are operating on, the H key may do one of several different sort of related things. The Mouse actions is here as well, as well as the Numbers at the top of your keyboard have a different use in revealing or hiding or showing different layers.
Your numpad on your keyboard, which I just briefly discussed but is exhaustively documented here, you can also search. So if you know you want to do something but you really don't know, what it's called, you can just type in move and then the Help will find the synonym for that particular function. That covers your basic essential keyboard skills of being able to use the keyboard and the keypad and the arrow keys in Blender.
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