1 00:00:04,220 --> 00:00:05,000 ‫Hello and welcome. 2 00:00:05,000 --> 00:00:09,770 ‫In this lecture, we are going to be getting a third person camera set up like so. 3 00:00:09,770 --> 00:00:18,110 ‫So when we back into a wall, it is going to keep our character in view and not disappear within the 4 00:00:18,110 --> 00:00:18,290 ‫wall. 5 00:00:18,290 --> 00:00:20,900 ‫Let's dive in and see how this can be achieved in Unreal. 6 00:00:21,860 --> 00:00:22,770 ‫All righty, then. 7 00:00:22,790 --> 00:00:24,590 ‫A third person camera. 8 00:00:24,590 --> 00:00:25,250 ‫How are we going to do this? 9 00:00:25,250 --> 00:00:29,360 ‫Let's go and do this in Blueprint, because there's really no point doing this in C++. 10 00:00:29,360 --> 00:00:30,890 ‫It's all configuration. 11 00:00:30,890 --> 00:00:33,980 ‫It's really much easier to do with scene components in Blueprint. 12 00:00:33,980 --> 00:00:38,990 ‫So let's go to the BP shooter character, open the full blueprint editor so we can see the viewport, 13 00:00:38,990 --> 00:00:41,750 ‫so we can see all of the components over on the left. 14 00:00:41,840 --> 00:00:48,020 ‫And what we're going to do is add in a little bit of a camera component. 15 00:00:48,020 --> 00:00:50,000 ‫So go to add components camera. 16 00:00:50,000 --> 00:00:57,110 ‫And the easiest way to get a third person view is and something you probably already knew, just move 17 00:00:57,110 --> 00:01:02,030 ‫this camera out and over the right shoulder or left shoulder, whichever way you want to move it back 18 00:01:02,030 --> 00:01:04,010 ‫and you can go ahead and have a play. 19 00:01:04,010 --> 00:01:09,770 ‫And that's going to be a third person view, simple as, but things are not going to be that simple. 20 00:01:09,770 --> 00:01:10,490 ‫For a start. 21 00:01:10,490 --> 00:01:14,240 ‫You can see that our control rotation isn't entirely working. 22 00:01:14,240 --> 00:01:15,350 ‫It can't go up and down. 23 00:01:15,720 --> 00:01:19,820 ‫And but also if I back into a wall, you can see that I'm looking through the wall. 24 00:01:19,820 --> 00:01:20,810 ‫That's no good, is it? 25 00:01:20,810 --> 00:01:25,520 ‫So let's try and see if we can make this a little bit better. 26 00:01:26,390 --> 00:01:34,550 ‫Now, Unreal has a component for this that makes using cameras in this way a lot, a lot better. 27 00:01:34,550 --> 00:01:42,020 ‫But before we do that, I want us to go to the camera component and fix that rotation problem so you 28 00:01:42,020 --> 00:01:46,910 ‫can go to the camera options and check the pawn use control rotation. 29 00:01:46,910 --> 00:01:51,020 ‫And what that's going to do is it's going to rotate the camera using the control rotation. 30 00:01:51,020 --> 00:01:53,300 ‫Let's go ahead and hit play and see if that works. 31 00:01:53,300 --> 00:01:57,140 ‫Yes, it does rotate, but unfortunately it rotates around the camera. 32 00:01:57,140 --> 00:01:59,030 ‫That's not a very third person. 33 00:01:59,150 --> 00:02:05,360 ‫Look, you tend to expect it to rotate around that kind of point over the shoulder here so that you 34 00:02:05,360 --> 00:02:08,240 ‫can always keep that character within view. 35 00:02:08,570 --> 00:02:08,890 ‫Okay. 36 00:02:08,930 --> 00:02:12,620 ‫In enough teasing, what we want here is the spring arm component. 37 00:02:12,620 --> 00:02:17,210 ‫I'm going to select the capsule component, go to add component because I want this to be a child of 38 00:02:17,210 --> 00:02:17,930 ‫the camera component. 39 00:02:17,930 --> 00:02:19,880 ‫Add a spring arm in here. 40 00:02:20,240 --> 00:02:26,390 ‫For some reason, Unreal is focused on trying to put these components in my character's crotch. 41 00:02:26,510 --> 00:02:31,010 ‫Now let's go to the camera and make the camera a child of the spring arm. 42 00:02:31,010 --> 00:02:37,190 ‫And I'm going to just reset its location and transform location under the details pane so that when 43 00:02:37,190 --> 00:02:41,660 ‫we select the spring arm, you can see that the camera goes on the end of the spring arm. 44 00:02:41,810 --> 00:02:46,490 ‫And then what I'm going to do is you could move the camera, but I'll show you why in a second. 45 00:02:46,490 --> 00:02:47,600 ‫That's not a good idea. 46 00:02:47,600 --> 00:02:49,760 ‫We're going to move the spring arm instead. 47 00:02:49,760 --> 00:02:53,240 ‫And because the camera is ID to the spring arm, it's moving with it. 48 00:02:53,440 --> 00:02:55,310 ‫We're going to move that to. 49 00:02:55,340 --> 00:03:02,090 ‫So there's this point just to the right of my character's mesh, the right of his shoulder, and that's 50 00:03:02,090 --> 00:03:03,980 ‫what the camera is going to try and look at. 51 00:03:03,980 --> 00:03:10,040 ‫So if we go ahead and hit play now and move, the movement is still not quite right. 52 00:03:10,040 --> 00:03:14,930 ‫But we should have fewer problems with the walls. 53 00:03:14,930 --> 00:03:18,680 ‫You can see that now I can back into a wall and my camera doesn't go through the wall. 54 00:03:18,680 --> 00:03:22,640 ‫That is the functioning of the spring arm itself. 55 00:03:22,970 --> 00:03:29,930 ‫So, you know, when I went into camera and I set the use -- control rotation checked that we actually 56 00:03:29,930 --> 00:03:34,460 ‫want to uncheck because it's not the camera that we want to rotate, but rather the spring arm. 57 00:03:34,460 --> 00:03:39,320 ‫Because you can see that if I use my rotation widget, which I'm going to use E to switch over to my 58 00:03:39,320 --> 00:03:45,560 ‫rotation widget, if I were to rotate the spring arm, you can see that I'd get the right sort of rotation. 59 00:03:45,560 --> 00:03:49,640 ‫It wouldn't be just the camera looking up and down, because if I select the camera and rotate that, 60 00:03:49,640 --> 00:03:52,460 ‫you can see the camera is just looking up and down, which is the behavior we were seeing. 61 00:03:52,460 --> 00:03:55,190 ‫We want it pivoting around that spring arm. 62 00:03:55,280 --> 00:04:00,950 ‫So what we can do is we can select the spring arm and go to use pawn control rotation on the spring 63 00:04:00,950 --> 00:04:01,940 ‫arm itself. 64 00:04:01,940 --> 00:04:07,190 ‫Now, if we hit play and we move around, you can see, yes, that is much more like it. 65 00:04:07,190 --> 00:04:11,390 ‫That is third person camera at its finest. 66 00:04:11,390 --> 00:04:16,880 ‫And you can see that we're able to move into walls and that is no problem whatsoever. 67 00:04:17,210 --> 00:04:23,450 ‫So like to run a little experiment as part of your learning here, we're going to try and figure out 68 00:04:23,450 --> 00:04:24,950 ‫why not move the camera? 69 00:04:24,950 --> 00:04:28,190 ‫Why did we move the spring arm and not the camera to get a third person view? 70 00:04:28,430 --> 00:04:32,900 ‫So try moving the camera and not the spring arm and see what happens. 71 00:04:32,900 --> 00:04:35,750 ‫See if you can figure out why I did that. 72 00:04:36,170 --> 00:04:37,220 ‫Pause the video and have a go. 73 00:04:38,540 --> 00:04:38,780 ‫Okay. 74 00:04:38,780 --> 00:04:39,370 ‫Welcome back. 75 00:04:39,380 --> 00:04:41,030 ‫So let's give this a shot. 76 00:04:41,090 --> 00:04:41,990 ‫I have. 77 00:04:41,990 --> 00:04:47,510 ‫I'm going to just go ahead and put our spring arm back in its original location just by resetting it 78 00:04:47,510 --> 00:04:56,300 ‫and taking the camera instead using the movement widget and bringing that up into a higher location 79 00:04:56,720 --> 00:04:58,970 ‫over up and to the left. 80 00:04:59,090 --> 00:05:04,010 ‫So the spring arm, you can see the little red line is pointing back here. 81 00:05:04,050 --> 00:05:08,690 ‫The camera is up there and to the left go ahead and hit play in this configuration. 82 00:05:08,690 --> 00:05:09,710 ‫Let's see if we can figure out. 83 00:05:09,710 --> 00:05:12,770 ‫Well, seems to be mostly working the same, doesn't it? 84 00:05:12,770 --> 00:05:14,360 ‫Let's go and have a look. 85 00:05:14,450 --> 00:05:16,640 ‫Go near an edge of something. 86 00:05:17,430 --> 00:05:20,490 ‫And see if we can figure out what's going wrong. 87 00:05:20,520 --> 00:05:21,300 ‫There you go. 88 00:05:21,300 --> 00:05:25,640 ‫That is exactly an example of why we move the spring on. 89 00:05:25,680 --> 00:05:32,010 ‫Now, what's going on here is that that little red line of the spring arm, this one here that was in 90 00:05:32,010 --> 00:05:36,480 ‫the clear when we went through this doorway, it was kind of going through here. 91 00:05:36,480 --> 00:05:38,580 ‫So it was going through the hallway just fine. 92 00:05:38,610 --> 00:05:40,580 ‫The red line was clear. 93 00:05:40,590 --> 00:05:42,060 ‫The camera wasn't clear. 94 00:05:42,060 --> 00:05:45,300 ‫The camera was up somewhere inside the wall. 95 00:05:45,600 --> 00:05:50,880 ‫So what we want to have happen is that this red line needs to be wherever. 96 00:05:50,880 --> 00:05:53,160 ‫We need to clear the view for the camera. 97 00:05:53,160 --> 00:05:57,540 ‫And that's why we want the camera to always be looking down the red line. 98 00:05:57,540 --> 00:06:03,360 ‫So if we reset it and go and have a look at our spring arm, you can see that now the red line is kind 99 00:06:03,360 --> 00:06:09,360 ‫of pointing, firing out of the camera to the point of interest, which, as we said, Unreal has got 100 00:06:09,360 --> 00:06:11,550 ‫a bit of a interesting point of interest. 101 00:06:11,550 --> 00:06:15,450 ‫And in this case, it should be just above the shoulder like this. 102 00:06:16,110 --> 00:06:21,880 ‫And that's the point that we're going to want to go and get the camera to focus in on as much as possible. 103 00:06:21,900 --> 00:06:28,050 ‫Now, this does have an interesting point, which is that we want to if we wanted to say rotate this 104 00:06:28,050 --> 00:06:32,520 ‫spring arm, you can't simply just go ahead and rotate the spring arm. 105 00:06:32,520 --> 00:06:33,330 ‫That doesn't work. 106 00:06:33,330 --> 00:06:35,510 ‫It seems to want to go straight out backwards. 107 00:06:35,520 --> 00:06:38,700 ‫And the reason for this is it's in the settings of the spring arm itself. 108 00:06:38,700 --> 00:06:44,130 ‫You can see that there is this socket offset, target offset and the spring arm length. 109 00:06:44,130 --> 00:06:47,460 ‫So the length is telling us how long that length is. 110 00:06:47,460 --> 00:06:48,750 ‫That's kind of makes sense. 111 00:06:48,930 --> 00:06:54,690 ‫But if you want to do a rotation type of thing, then you can use the offsets. 112 00:06:54,690 --> 00:07:01,200 ‫There's no real kind of rotation going on here, but rather we're just kind of moving that camera over, 113 00:07:01,200 --> 00:07:02,850 ‫using the offsets. 114 00:07:02,850 --> 00:07:07,190 ‫And then if you wanted to rotate the camera tool, you could rotate the camera independently so that 115 00:07:07,200 --> 00:07:13,320 ‫if it was pointing more in towards the player like so and because we've still got that red line set 116 00:07:13,320 --> 00:07:15,780 ‫up in the right way, the camera is going to work. 117 00:07:15,780 --> 00:07:22,490 ‫It's going to keep visibility clear towards the player as much as is physically possible. 118 00:07:22,500 --> 00:07:25,410 ‫Now, I'm just going to go ahead and tweak this more to my liking. 119 00:07:25,410 --> 00:07:31,350 ‫So I'm going to move it a little bit closer to the shoulder here, because if I got the camera coming 120 00:07:31,350 --> 00:07:35,280 ‫in, I want it to almost be looking down the barrel of the gun. 121 00:07:36,030 --> 00:07:38,850 ‫But then I don't want any rotation on the camera itself. 122 00:07:38,850 --> 00:07:45,150 ‫I find that it's not really necessary, but I do want to have a bit of a spring arm offset so that we 123 00:07:45,150 --> 00:07:53,640 ‫can get that camera looking over slightly more to the right when we are not near a wall. 124 00:07:53,640 --> 00:07:58,290 ‫And as we get near a wall, it's going to look closer and closer to the player's shoulder. 125 00:07:58,290 --> 00:07:59,070 ‫Let's play that. 126 00:07:59,090 --> 00:08:00,030 ‫See how that feels. 127 00:08:00,030 --> 00:08:03,720 ‫So that's looking like I'm a bit too far over to the right here. 128 00:08:03,720 --> 00:08:05,160 ‫Let's bring it in again. 129 00:08:05,640 --> 00:08:11,460 ‫I think about maybe 60 units would be good like so just to have a nice round number, I'm going to hit 130 00:08:11,460 --> 00:08:17,220 ‫play and you can see that's kind of in the right sort of spot for a third person view in my opinion. 131 00:08:17,220 --> 00:08:23,310 ‫And if I go up against a wall, you can see it kind of brings me closer into the shoulder so I can still 132 00:08:23,310 --> 00:08:24,480 ‫keep an eye on my character. 133 00:08:24,480 --> 00:08:26,100 ‫I'm probably going to have a gun barrel. 134 00:08:26,100 --> 00:08:29,730 ‫This might need some more tweaking later on when we've got our animations in place and we actually want 135 00:08:29,730 --> 00:08:33,450 ‫to be looking down the gun barrel when we zoom in, that's fine. 136 00:08:33,450 --> 00:08:35,760 ‫We don't need to do that just yet. 137 00:08:37,190 --> 00:08:42,200 ‫So hopefully you have got now a working knowledge of the spring arm and camera and how we can use those 138 00:08:42,200 --> 00:08:46,250 ‫two components together to create a third person camera. 139 00:08:46,310 --> 00:08:49,490 ‫Now, all of that brings out the fact that our animations are not there. 140 00:08:49,490 --> 00:08:51,470 ‫He's just standing in a static a pose. 141 00:08:51,470 --> 00:08:55,520 ‫So in the next lecture, we're going to look at adding in those skeletal animations. 142 00:08:55,520 --> 00:08:56,210 ‫So you there.