Revisado con versión: 5.2
Phase 1 teaches you how to set up the base scene using the provided assets.
Intermedio Tanks tutorial
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So without further ado, this is what we're going to make today.
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We're making a two player
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tank shooting game.
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It's not a networked multiplayer game,
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so don't be confused by that.
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We will be releasing a version of the game
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tomorrow that has Unet stuff built in to it,
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sorry, multiplayer features built in to it.
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But this is all about two players on one keyboard.
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So we're going to build this game throughout the day
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and then at the end of the day we're going to get together
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and have a bit of a battle with it.
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Okay, so many of you will see that there's
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a completed scene loaded,
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if that's not what you're seeing, don't worry about it at all.
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We're going to start by making a new scene in a moment.
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What I would like to you to do or suggest that
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you do if you're hoping to see exactly what
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we're seeing on the screens is to use the same
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layout that we're using.
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So what I'm going to get you guys to do is click on
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the Layout drop down in the top right
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and choose 2 by 3.
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Then what I'm going to do is to grab my project panel.
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and drag and drop that by grabbing the tab at the top
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and drop it below the hierarchy.
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You're looking at a layout that's something like this.
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So if you're unfamiliar with Unity then you can just
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drag these windows around, you can reorder them,
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you can dock tabs,
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but hopefully everybody's familiar with that having watched
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the beginner tutorials that we sent you by email.
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And then the only other thing that I'm going to do it
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to set my project panel to a list style
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view by dragging the slider at the bottom here.
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If you drag it all the way to the left you will get a list view.
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Okay, so that's our editor setup.
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By the way if I'm going too fast just shout
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at me, I'll slow down.
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We're going to start from scratch,
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so if you go to File - New Scene
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command-N on mac, control-N on PC
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and then the first thing we're going to do
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before we start losing work, or doing work,
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is to save it somewhere, so you go
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File - Save Scene As
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and you will find a Scenes folder.
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And we're just going to call this Main.
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Save it in there.
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Then what we're going to do is to
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remove the directional light.
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So whenever you make a new empty scene in Unity
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you get two things, you get a main camera,
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and you get a directional light,
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so it's kind of setup so that you can just
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drag some artwork in there and it's going to look nice.
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We've got our lighting setup in our Level prefab.
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So we don't need that, so select the directional light
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in the hierarchy here,
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just delete it, command-backspace on mac
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delete on PC.
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Then what I want you to do is
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look in the Prefabs folder in the project.
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What you should see is that you've got a number of
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prefabs in there.
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One of those is called LevelArt
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and if you select it it should look something like this.
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So it's a little game board with all of the stuff setup.
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So the reason we're giving this to you readymade,
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or prefabbed as we call it,
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is that we didn't want you guys to have to go through a whole
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system of setting up colliders
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and all of this different stuff.
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We thought we would just get it all ready and then
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actually go about making the game.
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So I'm going to grab my LevelArt prefab and just
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drop it on to the hierarchy.
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Then what you'll see is that that's populated
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in the scene view and you can see part of
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it in the game view as well.
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Now what you'll notice at this point is that there's a blue
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progress bar starting down at the bottom..
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So we want to change some settings for that.
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What that's doing is telling us about lighting
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and it's starting to create a lighting bake.
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So I want you to go to Window - Lighting.
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If you drop the LevelArt prefab in
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to the scene that will instantiate it as well,
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but it won't position it at the origin,
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if you've done that don't worry about it,
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just put it back at the origin by changing position to (0,0,0).
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Yeah, so just to reiterate
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the LevelArt should be at (0,0,0)
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if you've dragged it in to the hierarchy.
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If you randomly dropped it in to the scene view it might
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be at a slightly different position, just set those all back
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to 0 in the transform component here
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Transform - Position - (0,0,0).
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Okay, so the lighting panel.
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First thing to do is to uncheck Auto
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at the bottom of the lighting panel.
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So what Auto is there to do is basically to
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allow you to be lighting and moving around
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geometry that's going to stay still,
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okay, so if we were designing this level
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and we wanted to kind of incrementally bake whenever
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we moved something around it will rebake the shadows, etcetera,
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then we'd leave that setup, but we've already done
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that for you, so what we're going to do instead is uncheck that
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and then we're going to give you some settings to put in.
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First thing I'm going to do is remove Baked GI.
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So we don't want any baked
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lighting for this, we're going to use realtime
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lighting so that when we're firing the shells around
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they've all got lights on and they're going to light up the scene for us.
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So we're going to use that
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Precomputed Realtime GI.
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But we don't want it at a realtime resolution of 2
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we're going to set that to 0.5.
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This is kind of, sort of low poly style artwork,
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no offence Pete, it's beautiful, well done.
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So, we don't need immensely high res
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for the lighting there, we can get away with
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Then one other thing that we need to do is to change
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our ambient lighting, so in Unity lighting can come
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from all the different lights that you put in there,
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so you know, we saw we had a directional light,
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and we have a directional light in this scene,
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it's attached to this.
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So you can see here, directional light.
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But you can also get ambient contribution
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and ambient is basically just the lighting
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supplied either by a skybox or by colour or gradient.
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and we're just going to set this to a colour.
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What I wanted to introduce you to briefly is that
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whenever we switch back to the slides we're going to have a quick
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recap of what we've just done, okay?
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So we've skipped through a few basic steps
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but what we'll also do is when we get in to the more detailed stuff
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we'll keep going back to the slides,
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and the slides also have references to things.
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So you can see here we have Ambient Color, and that's
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what we're going to do next, and you can see I'm
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asking you guys to set it to 972, 62, 113).
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But what does that mean?
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So Ambient Source set to color, which looks like this,
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So this color box,
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has RGB values, if you click here
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it will change to different values, but you want
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to make sure you're on RGB.
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And the references there, 72 for red,
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green 62 and 113 for blue.
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This system of showing you
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these different references is
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going to be the same for X, Y and Z.
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So they're represented by red, green and blue
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as well, so if you see those for color
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and also for positions or rotations
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don't get confused, that's fine.
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Okay, so back to the editor.
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We've put in this kind of purple color in ambient
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and that's fine.
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And then right at the bottom of that panel
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we're just going to click Build.
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So Build will bake your lighting
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and you'll see a short progress bar at the bottom.
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If you've just opened Unity for the first time,
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like ever, or just installed this version for the first time
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then it might take a little bit longer to bake.
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It doesn't matter before it's going to do it in the background
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and we can carry on with the work that we're doing.
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The next thing we're going to do is to setup our camera.
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So the position of the camera currently
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as you can see is kind of looking at some of the buildings.
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It's embedded down here.
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So it's this kind of default position that camera's
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always are, which is at (0,1,-10) in the world.
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So it's kind of away from 0
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so that you can look at something if you put it in at 0.
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So we're going to start by just repositioning
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that so I'm going to set the position in the transform component
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to (-43, 42, -25).
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And I'm going to rotate this
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to (40, 60, 0).
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Okay, and then the final thing we're going
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to do there is to set it to orthographic projection.
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So as I promised we're going to do these recaps.
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So in the inspector panel we're setting the position
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of the camera to (-43, 42, -25).
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Change the rotation to (40, 60, 0).
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Finally we're changing the projection to orthographic
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and we're going to talk a little bit about what that means.
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So what you'll notice is that
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when we've changed projection from perspective
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to orthographic you now get this
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strange looking flattened view.
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We're going to talk a lot more about that in the specific
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section on cameras later on
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but just to briefly explain,
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the difference between projection and orthographic is
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that there's no change in scale
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over distance, and we've got some diagrams
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that explain that a bit better.
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But what you'll need to know going in
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is that size is what changes, effectively the zoom.
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As I drag my size value I'm effectively zooming in and out.
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We don't want you to do this, but it's just an example.
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Then the last thing that we're going to do.
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As you notice when I zoom out here,
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sorry, wrong way round, when I zoom out I can see my
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strange gradient sky box in the background
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and because our camera will pan out when our
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tanks move far apart we need to have a background color setup.
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What I'm going to do is to change
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my clear flags on the camera component
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from skybox to solid color.
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And then I'm going to choose a color for the background.
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So this is just going to be a brown to match the
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desert and the RGB reference is (80, 60, 50).
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If you want to choose your own brown, you're a big fan of
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brown, then you know,
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pick your favourite brown.
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We're just going to put in that RGB reference
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and then what we'll see
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when we do happen to go over the edges
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is that, so it kind of fits the theme.
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But like I said, don't change the size value,
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that's not important.
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So quick recap, we changed our clear flags
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from skybox to solid colour so that the
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background, so what renders behind all of
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the geometry in the scene is changing
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to a particular color,
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we changed that color to (80, 60, 50).
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And finally we're going to save our scene,
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I'm going to get you to save all the time,
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but it's just a good habit to control-S or command-S if you're on a mac.
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Keep updating your scene.
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So the next thing that we're going to do is create
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our tank and it's control,
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so as with the level art we've created
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the artwork for you.
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This time we're not going to give it to you prefabbed,
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we're going to start with the model and build up
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all the components that you need.