WEBVTT 00:04.250 --> 00:06.320 Hello everybody and welcome back. 00:06.320 --> 00:10.450 We're going to discuss depth of field this time using the cycle's rendering engine. 00:10.490 --> 00:14.870 So this is going to make this scene even better where we can blur out the trees and grass in the background 00:14.870 --> 00:19.550 to really focus on our rabbit in the foreground so I'm going to make us seen even better than it was 00:19.550 --> 00:20.540 before. 00:20.540 --> 00:26.390 Now one of the first things to just work out here is and to tell you about is now a P.S. As you probably 00:26.390 --> 00:31.970 gathered this isn't a Mac anymore and these it's the second thing is just to refresh my memory and this 00:31.970 --> 00:33.530 will happen to you as well. 00:33.530 --> 00:36.690 When you're coming back to a project and applying things you've learnt. 00:36.800 --> 00:42.180 So first of all does this actually render as I expect it to I've opened this project to move computer. 00:42.320 --> 00:47.050 Let's just make sure it does and I don't wanna wait in E on ALL I NEED TO SEE IS grasp being there. 00:47.050 --> 00:52.870 So I'm still using s.p. rendering it's very intensive I know the GP on this computer can't even handle 00:52.870 --> 00:56.580 it 16 by 16 is fine for my tiles sizes. 00:56.600 --> 00:58.470 So the first thing I'm going to do here is whack. 00:58.490 --> 01:05.970 My resolution 1920 by 10 it is fine but the tone all the way down to just 10 percent and here F 12. 01:06.350 --> 01:09.980 Now what this is going to do is give me an impression of how the scene is looking. 01:09.980 --> 01:12.330 I don't care if this is full of detail or not. 01:12.380 --> 01:18.340 What I do care about is is all the are all the bits that I want to be there there. 01:18.440 --> 01:22.280 If they're not then I'm going to have to reconstruct something or move things about. 01:22.280 --> 01:26.870 Now this often happens especially with images in a scene but as we can see it's rendered out there and 01:26.870 --> 01:29.540 I've got everything I wanted my scene perfect. 01:29.630 --> 01:30.560 So what's the next thing to do. 01:30.560 --> 01:36.770 Well the next thing to do is to go ahead and start tweaking and adding in the appropriate depth of field 01:36.920 --> 01:38.440 to the right camera in our scene. 01:38.450 --> 01:42.800 So the next thing we need to trouble ourselves with is working out which camera actually looking to 01:43.120 --> 01:47.480 an easiest way of working that out is to make sure your looking through the camera view with your number 01:47.480 --> 01:48.860 pad is zero. 01:49.040 --> 01:54.650 And when you've done that just go through your cameras in the outline clicking them one by one and we 01:54.650 --> 01:56.240 can see there's a camera up here. 01:56.240 --> 01:59.740 We've got one over there and one we eventually get to my cam. 01:59.750 --> 02:04.220 We will see that the border around the camera highlights are in so we know that's the camera we need 02:04.220 --> 02:09.230 to edit so we can go to that straightaway go into the camera properties with that's selected and we 02:09.230 --> 02:14.260 can tweak our settings here and then we're going to need to scroll down to where it says depth of field. 02:14.270 --> 02:20.120 Now just as we did way back in the chess section we can go ahead and use the Selecta here to select 02:20.150 --> 02:20.350 the. 02:20.390 --> 02:26.690 I threw up the object rabbit there and we've got that selected and we're focussed on the lens of the 02:26.690 --> 02:27.070 rabbit. 02:27.080 --> 02:32.660 That's good that's a good place to be and then we can start playing with ah settings now whereas with 02:32.660 --> 02:37.570 Blender render you need to fake it cycles is really good we dont need to do that. 02:37.580 --> 02:41.900 It's a it's a great tracing engine so we go ahead and change the camera properties. 02:42.050 --> 02:46.040 It should change as well something to change sister f-stop rather than radius. 02:46.150 --> 02:50.900 And I'm going to lower it down to something like one point to the number of blades that's going to change 02:50.900 --> 02:55.010 the shape of the bokor the outer focussed area I'm going to go for six. 02:55.040 --> 02:58.570 And that will be the same as having a hexagonal shaped aperture. 02:58.610 --> 03:04.140 The next thing we can do here is flip into rendered mobridge shift in Z and start tweaking things. 03:04.170 --> 03:05.930 We've already got this setting here. 03:06.020 --> 03:09.560 We can see there's already a bit of blur going on in the background. 03:09.560 --> 03:11.360 How about if we lower this 2.5. 03:11.360 --> 03:13.670 Does that change the background even more. 03:13.940 --> 03:17.260 Yes we can see it starting to get even fuzzier in the background. 03:17.330 --> 03:21.380 You know what I might just leave it as that and just see what's going on. 03:21.500 --> 03:27.440 When I go ahead and hit render Now this is one of these points at which hitching render I should imagine 03:27.440 --> 03:32.090 is going to work well going to have a little bit of a longer render time but also with the resolution 03:32.090 --> 03:36.830 that I have set under the render properties of escarole I am already up at 10 percent. 03:36.830 --> 03:43.010 I might not be able to get enough detail in that in order to ascertain whether I've got the right depth 03:43.010 --> 03:45.140 of field settings going on. 03:45.260 --> 03:49.970 And here we go it's coming through so we can see that is definitely blurred compared to last time. 03:50.120 --> 03:51.710 But I can't really tell how much. 03:51.710 --> 03:56.810 Now I'm quite happy with the viewport and how it has updated obviously it doesn't give an impression 03:56.810 --> 03:59.860 of the grass or how much of a depth of field we have there. 03:59.870 --> 04:07.370 So what I'm going to do now is I'm going to go ahead and whack this up to 400 percent and I'm going 04:07.370 --> 04:11.510 to go grab myself a cup of tea whilst that renders out because it is going to take a few minutes to 04:11.510 --> 04:11.920 do. 04:11.930 --> 04:17.250 In fact I'm going to whack it to 50 percent because I do want to be able to not have two cups of tea 04:17.480 --> 04:22.060 so I'll see you guys back in a few moments after that has finished rendering out. 04:23.310 --> 04:26.910 Okay so there we go second about two minutes to do that's not bad at all. 04:27.060 --> 04:32.880 And we've got a definitely a separated image of foreground image here of the rabbit than the rest of 04:32.880 --> 04:37.470 us seen again is still not particularly high detail at the moment but that's something we can work on 04:37.800 --> 04:39.390 as we get to the final render. 04:39.390 --> 04:45.630 Now one of the things that can be incredibly fussy when you're trying to work out where to place your 04:45.630 --> 04:48.680 actual focal point so on the camera itself. 04:48.750 --> 04:51.610 When we were setting it up we've picked the lens of the. 04:51.620 --> 04:55.710 I wish that that is a good place to focus in this particular scene. 04:56.020 --> 05:01.590 If we wanted to change the focus over time perhaps animates it so we've got the tree in foreground or 05:01.590 --> 05:09.120 the bush in foreground and then the Rabbit itself with its eye actually focussed in we're not going 05:09.120 --> 05:13.840 to be able to do it with that so we need a bit more finer control over what is happening. 05:14.040 --> 05:16.890 And that is where an empty can come in. 05:16.920 --> 05:19.360 So let's go over to the 3D view. 05:20.210 --> 05:22.950 Then take a few moments to come out now. 05:22.970 --> 05:28.490 Our 3-d cursor at the moment when we come out of rended mode our 3-d cursor or moving the camera around 05:28.970 --> 05:32.180 I will one day one day remember to turn off. 05:33.590 --> 05:34.930 Lock to camera view. 05:34.940 --> 05:35.450 There we go. 05:35.450 --> 05:40.040 So come out of there and our and our. 05:40.280 --> 05:41.410 Yeah it is. 05:41.630 --> 05:47.120 Three curses right on that eyeball there which is exactly what I want to see because with the 3-d cursor 05:47.120 --> 05:55.370 there we can go ahead and add in an empty and smoke aeroplane access in this point and I'm going to 05:55.370 --> 05:59.900 call this focus points straight away so focus points. 06:00.110 --> 06:07.460 And now I've got a focus point I can go on so I can go to my camera and then change the focus to that 06:07.460 --> 06:08.500 focus point. 06:08.750 --> 06:16.110 And that means now we can animate that focus point in our scene and the focal depth will track wherever 06:16.280 --> 06:21.670 that focus point is and we can demonstrate that with the viewport rendering. 06:21.800 --> 06:23.170 Looking through the camera. 06:24.960 --> 06:25.410 There we go. 06:25.410 --> 06:30.750 So at the moment the rabbit is definitely in focus and the Bush is not. 06:30.770 --> 06:36.420 If I come out and I drag that back to the bush I could be a bit more precise with it being placed. 06:36.570 --> 06:41.780 But let's drag it back to roughly where the Bushes come back round to where the camera is and flip into 06:41.790 --> 06:49.270 rendered mode and we can see here that now are but gone a bit fuzzy and ah Bush is in focus. 06:49.290 --> 06:50.110 How about that. 06:50.100 --> 06:56.660 That is pretty cool and that will enable you to animates that depth of field as well if you so wish. 06:56.670 --> 06:59.730 So let's finish off this election now with a challenge. 07:00.550 --> 07:06.250 And you've probably already guessed what your depth of field challenges it's to add depth of field and 07:06.280 --> 07:12.160 depth of field to your scene and make sure you are tracking an empty that is important that is part 07:12.190 --> 07:13.090 of this challenge. 07:13.090 --> 07:18.730 I know you can go ahead and just click on a particular object but add an entity or scene and use that 07:18.820 --> 07:23.160 for the tracking render out your final image and share it with everybody. 07:23.230 --> 07:30.940 And there's a bonus if you feel up to the challenge of animating a depth of field change or maybe even 07:30.940 --> 07:33.550 a bit of a focal change as well. 07:33.550 --> 07:36.230 Go ahead and do that as a bonus as well. 07:36.230 --> 07:39.130 And if you go ahead with that make sure you share that as well. 07:39.310 --> 07:42.230 So go ahead pause video now and give that a go. 07:44.390 --> 07:48.260 OK everybody welcome back let's go ahead and add a different depth of field to our scene. 07:48.350 --> 07:51.910 And I'm going to make sure that I am tracking an empty which I think I'm doing anyway. 07:52.010 --> 07:53.840 And you know what I'm going to go ahead and do that. 07:53.840 --> 07:56.070 Bonus parts of the challenge as well. 07:57.390 --> 08:02.010 Now I'm not going to get overly fussy with what's going on here I'm going to do a little bit of camera 08:02.010 --> 08:03.010 movement. 08:03.030 --> 08:04.470 I'm not going to make it too long. 08:04.470 --> 08:08.850 I'm not gonna render it on this computer and probably can render it on why I probably am going to render 08:08.850 --> 08:11.290 on this one but probably several computers. 08:11.310 --> 08:13.860 So let's go through the process that I would now go through. 08:14.040 --> 08:20.430 I'm going to start off focussed on the tree in the background then I'm going to move to the bush and 08:20.430 --> 08:25.560 then to the rabbit itself and I'm going to just move or pan or do something with the camera. 08:25.560 --> 08:29.610 Not quite sure yet but nice and slowly it's not going to be a big movement. 08:29.670 --> 08:37.250 Now this point in time I am going to save my file and I'm going to create a new file as well. 08:37.260 --> 08:43.920 Based upon this one fluffy Ben the bunny and with depth of focus and the reason why I'm doing that is 08:43.920 --> 08:46.640 because I want to remove some things from my scene. 08:46.680 --> 08:52.020 I want to keep it a little bit more simple so I'm going to go ahead and remove these extra cameras that 08:52.020 --> 08:56.280 we were playing with before and almost delete the wrong thing. 08:56.280 --> 08:57.610 There's another one that I camp. 08:57.720 --> 09:01.550 Okay so who set those all up before just to get an idea of what's going on. 09:01.560 --> 09:03.950 Now we can go ahead and I can move that focus point. 09:03.950 --> 09:07.700 If I go g and move it will end up with things being out of focus. 09:07.970 --> 09:12.210 I'm going now do that in this mode so I can place things in an appropriate place and I'm going to bring 09:12.210 --> 09:19.380 up the time line at the bottom here so I can just key in some movements now to make this make any sense 09:19.380 --> 09:19.740 to me. 09:19.740 --> 09:24.950 Umm guns have switched to orthographic mode and look at things from above. 09:24.990 --> 09:26.090 Did I want above. 09:26.220 --> 09:31.750 Probably in wireframe all as she can't see what I thought I was going to be able to see. 09:31.760 --> 09:33.120 Let's look at it from the side. 09:33.120 --> 09:36.700 Move it back and then look at it from the front. 09:36.810 --> 09:37.860 So that's that's fine. 09:37.870 --> 09:40.310 Then I could track along here if I wanted to. 09:40.320 --> 09:44.340 I wanted to go from here to the bush and then to the bunny's eyes. 09:44.360 --> 09:47.810 I'm going to key in the original position so let's go ahead. 09:47.820 --> 09:55.250 Key in the position and then I wanted to come down sort of in an arc by Fink I can do that later on 09:55.260 --> 09:56.500 the bush itself. 09:56.520 --> 10:01.800 If I see that from the top is about there just a little lower. 10:02.200 --> 10:05.250 Let's look at it from the one side from the other. 10:05.260 --> 10:07.020 Yep that's fine. 10:07.140 --> 10:10.380 I forgot to move the time line lets move it. 10:10.380 --> 10:15.210 It depends how many frames per second we're doing this is going to be a long animation if I'm not careful 10:15.450 --> 10:16.110 not I'll do it. 10:16.110 --> 10:19.000 Two seconds to move from here to the bush. 10:19.200 --> 10:21.270 Now I can move it can't I. 10:21.300 --> 10:26.820 Okay so let's move it down to roughly where the Bushes switch around to the other side. 10:26.820 --> 10:32.560 There we go and keep that in AK So removing it from here to here and then to the bunnies. 10:32.580 --> 10:35.270 I will be the last one a hundred and twenty frames. 10:35.280 --> 10:40.000 I don't think I'm going to have many more resources to focus on it like that. 10:40.020 --> 10:45.570 So in this particular case it's in the right place and I can cheat here because the three curses already 10:45.630 --> 10:46.900 on it are not. 10:46.960 --> 10:53.030 Going to call it cheating but I can move the origin of that to the appropriate location. 10:53.200 --> 10:58.770 Shift in s n then where is it selection to cursor. 10:58.770 --> 10:59.440 There we go. 10:59.440 --> 11:01.280 I've moved there mechanically that's in. 11:01.410 --> 11:05.000 So let's just go through here to there and up there. 11:05.100 --> 11:11.730 Okay so the next thing to do is a line that the movements of the camera itself with the rest of our 11:11.730 --> 11:12.400 scene. 11:12.450 --> 11:15.810 So I'm going to use the first person mode to move the karibe. 11:15.820 --> 11:23.130 I'm going to set the camera up at frame 1 and then I should be able to see my focus point as well. 11:23.130 --> 11:24.360 It's all the way up here. 11:24.370 --> 11:31.860 I'm glad to make sure my camera selected shift F and move up to look at it and key those details in. 11:31.890 --> 11:38.730 I'm not going to worry about moving the camera too much but by me it was 60 wasn't it. 11:38.730 --> 11:44.970 It will be down at the bush so when I move around to the bush here and keep those in and then the final 11:44.970 --> 11:46.600 scene was on the rabbits. 11:46.650 --> 11:49.500 I says go ahead and show them. 11:49.500 --> 11:52.330 Zoom in ever so slightly to the rabbits. 11:52.430 --> 11:55.210 I look down as if he's towering. 11:55.260 --> 12:02.260 Now this may not work out at all but it's a good idea that see how those movements are going to be. 12:02.260 --> 12:08.250 So going to be focussed up here it's going to start pulling focus immediately round to there and then 12:08.250 --> 12:10.030 to the rabbit cape. 12:10.110 --> 12:16.520 I think I want more of the tree in this end shot some just going to move the camera back a little and 12:16.530 --> 12:18.900 make it even lower and looked up. 12:18.900 --> 12:24.810 Question is whether there's going to be a blade of grass in that that's ruining the shots. 12:24.900 --> 12:25.450 There we get. 12:25.490 --> 12:27.090 I'm going to go for that as my end. 12:27.090 --> 12:30.020 Remembering to keep those two areas in. 12:32.670 --> 12:36.950 I think I'm happy with how that's gonna be moving about. 12:37.260 --> 12:44.250 So the next thing of course is to go and do a quick test render of an animation and I'm going to really 12:44.250 --> 12:50.290 really crank this down and I'm not going to worry too much about how it's being output at the moment 12:50.300 --> 12:52.240 and just be output to a temporary folder. 12:52.380 --> 12:56.730 But I'm just going to do one percent of this and just to see if it kind of works. 12:56.730 --> 13:02.220 I'm going to do an animation and unless you can see that's going to be very few pixels is going to take 13:02.220 --> 13:06.660 a few moments to build up the scene and then hopefully it won't take too long to just go through these 13:06.660 --> 13:07.670 120. 13:07.680 --> 13:12.540 I've never actually done a one per percent render of 1920 paternity before so I'll be interesting to 13:12.540 --> 13:13.660 see how it comes out. 13:13.770 --> 13:20.160 And I can see from that straightaways just going to be probably too low a detail so I need to crank 13:20.190 --> 13:20.980 that up a little. 13:21.010 --> 13:25.970 I'm gonna go across and render this across a couple of machines now to get that rendering done. 13:26.100 --> 13:29.760 Go to my output folder and set it to an appropriate location. 13:29.760 --> 13:35.450 In this case I've popped it in completely the wrong folder but move it in a bit. 13:35.690 --> 13:38.790 Except that because I've got everything set up ready to render. 13:38.790 --> 13:40.940 Now that's the one not going to faff about with it. 13:40.950 --> 13:46.920 The final thing I'm going to do here before I do anything else is a quick assessment of how many frames 13:46.920 --> 13:49.290 I'm not going to render all 250. 13:49.400 --> 13:55.470 Do you want there after it's finished moving when it's reached frame 120 for it to last another second 13:55.500 --> 14:01.710 or so stationary some are going to take it to 150 as my end frames is going to be 150 frames in total 14:01.710 --> 14:07.440 being rendered out and the render samples here are going to up them a little. 14:07.440 --> 14:14.130 I'm going to go to 30 because we are using blender 2.0 7 9 now there's a couple of other things we can 14:14.130 --> 14:14.710 do. 14:14.760 --> 14:18.540 First of all on the settings the seed tab I'm going to set. 14:18.540 --> 14:24.840 That's using the little clock which means that any noise that appears will be randomise because by using 14:24.840 --> 14:28.800 a different seed every time that's useful I'm going to go over 30 samples. 14:28.800 --> 14:35.370 But what I am going to do so I'm going to go to the next tab along which is the render layers tab and 14:35.370 --> 14:39.980 then go down to D noisy and turn it on but I'm not going to have the strength set very high. 14:39.980 --> 14:44.910 I'm going to set to maybe point two because what I don't want is it to make things unnecessarily bleary 14:45.470 --> 14:48.120 and just clean up noise essentially. 14:48.150 --> 14:53.560 So now that's all set out I'm going to make sure I've saved my file before I hit render and will start 14:53.570 --> 14:56.940 sending out that animation and it is going to take a while to do. 14:56.940 --> 15:02.340 I know that Im going to employ the services of another machine as well so I want it to create place 15:02.340 --> 15:05.530 holders in this folder because that's a shared folder with another machine. 15:05.730 --> 15:07.940 And I'm going to not overwrite. 15:07.950 --> 15:12.720 I want to turn that off so each time it starts a new render it will continue going. 15:12.720 --> 15:17.090 Save that once more and go ahead and render that out. 15:17.090 --> 15:20.570 I'm going to hop onto the other machine now and get that working for me as well. 15:20.700 --> 15:22.700 And then in a few moments I'll be back. 15:22.710 --> 15:23.630 Well a few. 15:23.640 --> 15:28.590 Probably an hour or two for me but a few moments for you and we'll see how it finally looks. 15:30.300 --> 15:31.260 Okay so welcome back. 15:31.260 --> 15:33.780 I have stopped the animation at the moment. 15:33.780 --> 15:39.960 I just thought even though I have animated from zero all the way to 120 after 120 is essentially the 15:39.960 --> 15:44.470 same frame so I can pretty much just repeat that again and again. 15:44.550 --> 15:51.300 The only difference would be that even though it's a static frame for these last 30 frames because the 15:51.300 --> 16:00.060 noise if you if we go back to or scroll down here because we've set the seed as randomise we will get 16:00.060 --> 16:04.540 a slice of show you know it's going to change ever so slightly even though it's the same image. 16:04.680 --> 16:08.730 But I can get away with that rather than waiting for it to render out the rest of it. 16:08.730 --> 16:12.020 So the next thing to do of course is to put this all into one. 16:12.150 --> 16:14.680 So I'm going to go ahead go to the video sequence. 16:14.690 --> 16:21.090 Ed when I'm going to make sure we're right back at the very beginning and I'm going to add in an image 16:21.930 --> 16:24.190 and then I need to go find those images. 16:24.210 --> 16:29.340 Now Im going to change the view type here so I can see all of the images because I know these last ones 16:29.700 --> 16:31.880 are not going to be great. 16:31.890 --> 16:37.520 In fact they've not been rendered out so we can go from 129 all the way through. 16:37.990 --> 16:38.820 Yeah that's fine. 16:38.820 --> 16:43.640 We can select all of those with the exception of that last one so it's just the select that they're 16:44.100 --> 16:45.830 going to add that image strip. 16:46.050 --> 16:52.020 And then in once I've rented this out I'm just going to extend the last frame in a video editor rather 16:52.020 --> 16:54.690 than just adding the same frames several times. 16:54.690 --> 16:56.160 We've got 130 there. 16:56.160 --> 16:59.550 I'm going to render it out to one hundred thirty frames. 16:59.580 --> 17:03.120 That's looking good so the next thing we need to do is actually render it out as a video. 17:03.240 --> 17:05.600 Now of course you could do this in your favourite video editor. 17:05.600 --> 17:10.780 I'm going to use Blender here so lets just make sure our output this time is not a P N G. 17:10.800 --> 17:17.430 But its gonna be an F MPEG video encoding wise Im just going to set it as an MPEG for now there's lots 17:17.430 --> 17:24.660 of presets here and I prefer just using this not the top one there but the 8 2 6 4 in MP 4 so that will 17:24.660 --> 17:29.170 play back on most devices and you can upload that to the Web as well. 17:29.190 --> 17:34.620 So now all of that has been set up the final thing to do here is to render the animation out and we 17:34.620 --> 17:35.430 should find. 17:35.430 --> 17:36.000 Here we go. 17:36.000 --> 17:37.710 Its coming down be quite quick. 17:37.710 --> 17:42.650 This stage because its rendering it out and this is quite exciting. 17:42.750 --> 17:45.140 You know it did take a while to render this out. 17:45.150 --> 17:51.090 I will admit perhaps I shouldn't have done 10 ATP something like seven 20 would have probably been fine 17:51.090 --> 17:51.510 for this. 17:51.510 --> 17:52.680 But you know what. 17:53.010 --> 17:55.360 Yeah well I'm having fun and do it. 17:55.370 --> 17:59.040 All right there's a bit of grass in front of the ah that was beautiful. 17:59.070 --> 18:01.000 I am a Latino so I've that sort of thing. 18:01.000 --> 18:03.260 And there we go there's the final frame. 18:03.270 --> 18:04.370 They're all rendered out. 18:04.500 --> 18:11.010 And then of course we can play back that rendered animation as well using the built in playback feature. 18:11.010 --> 18:11.770 There we go. 18:12.800 --> 18:13.590 Look about. 18:13.730 --> 18:14.740 Awesome. 18:14.930 --> 18:16.900 I am really pleased with how that's turned out. 18:16.990 --> 18:18.860 I'm really looking forward to seeing yours as well. 18:18.860 --> 18:24.050 I don't know whether you've gone ahead and done a debt for field animation like this as well if you 18:24.050 --> 18:24.470 have. 18:24.470 --> 18:26.330 I'm looking forward to seeing it. 18:26.330 --> 18:31.210 Please share your work over in the discussions and I'll see you all in the next lecture.