WEBVTT 00:00.180 --> 00:02.800 Well come to Matching camera settings. 00:02.910 --> 00:06.450 So this is going to be mainly about configuring the camera. 00:06.780 --> 00:12.360 We'll be setting up the camera using the settings gathered from your picture and I will also be reiterating 00:12.360 --> 00:18.290 the importance of accurate camera data and I'll show you why that is very important. 00:18.300 --> 00:22.710 We're going to use the text editor to store data for reference I don't have to keep going backwards 00:22.710 --> 00:28.710 and forwards to that information and I'm going to start setting up a scene to match the photo. 00:28.800 --> 00:31.520 So let's go and hop on over into a blender. 00:31.650 --> 00:32.200 Right. 00:32.370 --> 00:36.420 We are back in blender and the first thing we need to do is open up the scene. 00:36.420 --> 00:38.540 We've been working on so far. 00:38.560 --> 00:42.530 I'm going to go here and open up the introduction to compositing. 00:42.630 --> 00:47.790 I'm going to then go ahead and save as and this is going to be my next lecture. 00:47.790 --> 00:51.180 Of course you can name these slightly differently if you so wish. 00:51.180 --> 00:56.540 I'm going to call this one setting up KEMMERER I spose because that's what we're going to be doing. 00:57.300 --> 00:58.600 Saves a blend far. 00:58.860 --> 01:02.120 I can confirm the name at the top is change and I'm ready to go. 01:02.490 --> 01:07.530 Let's just have a look at my properties here because I was running on a GP you before so my tiles will 01:07.530 --> 01:11.310 be at the wrong size and was going to save that file. 01:11.550 --> 01:12.060 Excellent. 01:12.060 --> 01:13.650 So we're ready to go. 01:13.680 --> 01:18.000 First of all let's have a look at the camera properties and click on the camera to select it in the 01:18.000 --> 01:22.520 outline and then go down to the Properties window and click on the camera tab. 01:22.680 --> 01:25.620 Once we've done this we can have a look at a series of settings. 01:25.620 --> 01:28.600 We won't go through every single one of these. 01:28.740 --> 01:32.680 However the important ones for us are going to be the focal length. 01:32.820 --> 01:36.490 We're going to want to leave it on perspective that is quite important. 01:36.570 --> 01:41.280 We're going to need a focal length and I'm going to have to look up what those details are in a few 01:41.280 --> 01:42.200 moments. 01:42.240 --> 01:47.610 Let's see down here and camera well have a look at that as well when it becomes important. 01:47.610 --> 01:51.040 So first of all let's go ahead and set this appropriately. 01:51.060 --> 01:54.990 I don't know what it is so I'm going to have to go and research I'm going to open another window up 01:55.890 --> 01:58.480 and change that to a text editor. 01:59.320 --> 02:07.450 And once I've changed that to a text editor I'm going to click on new and Kamerad details. 02:07.450 --> 02:12.950 Now if you don't have the cursor your actual mouse cursor in that window it will stop typing. 02:12.970 --> 02:15.310 So make sure it's over there if you're typing. 02:15.310 --> 02:19.500 Now I've when I've done this it's going to save those details along with the file. 02:19.680 --> 02:25.510 And I have to go and grab my particular picture and again you can grab this from your assets pack if 02:25.570 --> 02:26.230 necessary. 02:26.230 --> 02:31.110 This is the picture I'm going to go and get info from it. 02:32.170 --> 02:36.670 And we've got the details here it's a canon e o s eleven hundred d. 02:37.660 --> 02:38.140 Excellent. 02:38.140 --> 02:41.780 I can cut and paste which makes my life a lot easier. 02:41.840 --> 02:44.220 And what was the focal length. 02:44.230 --> 02:46.680 Does it say EXIF data. 02:47.350 --> 02:54.960 Focal length focal length focal length thirty four hour that will be 34 millimetres. 02:54.970 --> 02:56.470 That's a great start. 02:56.470 --> 02:58.850 Resolution may be important. 02:58.860 --> 03:05.590 I might as well copy it across something that was under General subpixel Hi Tim pixel width and I've 03:05.590 --> 03:06.710 got everything I need there. 03:06.720 --> 03:15.700 I am going to ground the aperture data as well that aperture is basically how large the light hole is 03:15.730 --> 03:22.150 in a lens and the lower this aperture value the shallower depth of field i.e. the foreground and the 03:22.150 --> 03:28.560 background can be very blurry compared to the actual object you're actually focussing on. 03:28.570 --> 03:31.600 I don't think that's going to make a difference in this case but I'm going to put it there so I've got 03:31.600 --> 03:34.260 the reference and I'm going to save my file. 03:34.420 --> 03:35.080 Excellent. 03:35.300 --> 03:36.370 All that data there. 03:36.580 --> 03:40.840 I'm good to keep it there for the moment but I'm going to make this window smaller so I can get all 03:40.840 --> 03:42.340 of the data I want. 03:42.360 --> 03:46.660 I only just leave it with that for the moment and I can scroll up and down if I need. 03:46.660 --> 03:49.990 So going back to these camera properties. 03:49.990 --> 03:55.650 Now you may think oh excellent we can just lower the focal length down to 34 and we're done. 03:55.690 --> 03:56.830 Not quite. 03:56.860 --> 04:00.480 We don't know the sensor size of our canon. 04:00.520 --> 04:03.000 E o s eleven hundred d. 04:03.340 --> 04:06.980 It may or may not be thirty two millimetres across. 04:07.030 --> 04:10.780 Let's have a look and see if there are there is a series of cannons. 04:10.780 --> 04:15.190 Oh there is actually oil in eleven hundred d built in to blender. 04:15.190 --> 04:20.170 By the looks of things I also know that that is an A P S C sensor. 04:20.200 --> 04:25.630 If your camera is not listed on this list which is really a relatively comprehensive. 04:25.960 --> 04:34.510 I know for instance that the the nikam here the X format is all of the consumer ones the these three 04:34.510 --> 04:38.260 thousand The three thousand one 5000 7000 etc.. 04:38.290 --> 04:44.830 I used to have nikon's if you got a different camera that's on here you will have to go and have a look 04:45.100 --> 04:48.420 at the specification sheet for your particular camera. 04:48.790 --> 04:53.470 So we know it's been taken with an eleven hundred day we might as well select it and that is the camera 04:53.530 --> 04:55.920 all set up and ready to go. 04:55.990 --> 05:03.340 Again I'm going to save my blender file so I'm ready to go and let's have a look and see if it renders 05:03.370 --> 05:06.290 any differently to how it did before. 05:06.330 --> 05:12.750 Now so be a little slower as I'm waiting for the c p u to render the the cube does look slightly different. 05:12.800 --> 05:16.880 Now this is the important thing when setting the camera right. 05:16.900 --> 05:23.900 If we got this wrong and set this sets a 60 it wouldn't be a it wouldn't work once we had that line. 05:23.900 --> 05:25.390 Everything in the scene. 05:25.390 --> 05:33.160 Now for argument's sake you can probably Eline something in a scene that looks absolutely fine even 05:33.160 --> 05:36.130 though it's got the wrong perspective in everything else. 05:36.250 --> 05:38.890 So that looks more in line with these ground lines. 05:38.890 --> 05:45.080 In fact we're going to use those in a moment to try and work out scale etc.. 05:45.160 --> 05:49.200 I'm going to lower that down to thirty four because otherwise I will forget. 05:49.210 --> 05:55.400 I'm just going to render that out once more so we've got a cube on a ground plane in a scene. 05:55.510 --> 05:58.350 But the camera's in the wrong place it doesn't look right. 05:58.360 --> 06:02.790 It's just floating in the sky it's not really in contact with the ground anywhere. 06:02.800 --> 06:04.120 This is no good. 06:04.120 --> 06:08.860 We need to manipulate where the camera is in order to manipulate where the camera is we're going to 06:08.860 --> 06:14.560 have to fake some of the geometry that's on the floor and get it roughly right in scale. 06:14.620 --> 06:17.980 So looking at that photo album open up the photo. 06:18.940 --> 06:20.120 There we go. 06:20.140 --> 06:26.620 So looking at this photo we can see there are lines on the floor there's some guides that we can use 06:26.980 --> 06:28.620 in terms of perspective. 06:28.800 --> 06:32.760 Now if I could read these numbers that were on here. 06:32.830 --> 06:34.770 Perhaps that will give us some detail. 06:34.990 --> 06:38.380 That's not working I don't know if he's a distance markers. 06:38.380 --> 06:43.500 If I knew a bit more about runways I could probably work out the distance between here but we can. 06:43.510 --> 06:45.230 We can guess you know is that fair. 06:45.280 --> 06:47.890 That's probably going to be about five meters across. 06:47.980 --> 06:51.710 So five blend units and then just stretch out into the distance. 06:51.730 --> 06:52.750 Let's go ahead and do that. 06:52.750 --> 06:54.840 Then we can position up the camera accordingly. 06:55.000 --> 06:56.710 So I'm going to delete my default. 06:56.930 --> 07:00.850 Now I'm going to lower it down I'm going to move it on that. 07:01.030 --> 07:07.050 Not got it selected properly and to move it on the z axis by two minutes to say. 07:07.480 --> 07:16.100 And that is going to be to blend the units across so I can scale vats on the x axis by two point five. 07:16.860 --> 07:22.410 That's now five blending units across and then I can scale that on the y axis. 07:22.410 --> 07:25.840 I asked into the vast distance okay. 07:26.010 --> 07:32.150 I'm gonna assume that's the right width for what I'm working on and when I look at it from the can review. 07:32.310 --> 07:36.140 Of course that's not going to be lined up with are seen. 07:36.150 --> 07:40.140 In fact we can render our scene really quickly and see what's going on. 07:40.140 --> 07:43.610 We're always going to have to render each time we change an actual model. 07:43.710 --> 07:48.900 But in this case we can see that it's probably not going to be lined up right at all. 07:49.050 --> 07:50.590 No no it's not. 07:50.700 --> 07:55.230 So we need to move the camera now so those two things match and of course that can be very difficult 07:55.230 --> 07:57.700 without it in the foreground for you. 07:57.840 --> 08:03.030 And first of all before we go and manipulate everything else let's make sure you can see both of them 08:03.210 --> 08:04.800 at the same time. 08:04.920 --> 08:11.040 So to get this appearing in our view we're going to have to go to the 3D view and then open up your 08:11.040 --> 08:16.230 properties panel scroll down and turn on background images. 08:16.260 --> 08:22.770 We're going to add in image now it should be a memory show we should be able to pick it yes we can. 08:22.950 --> 08:30.480 We can pick it from the drop down and that's loaded in amnestic it's a foreground and then we go in 08:30.480 --> 08:31.770 front. 08:31.770 --> 08:32.610 Perfect. 08:32.610 --> 08:37.020 So that looks pretty much how the picture is looking. 08:37.020 --> 08:43.500 Before you go cross reference that in a few moments after I have set the access of this view to just 08:43.500 --> 08:47.370 the camera view because that's all we care about now. 08:47.970 --> 08:50.560 Let's open up a nother window. 08:52.050 --> 08:54.720 And make sure that these things match. 08:54.900 --> 08:57.920 So we've got one of the lines going through. 08:59.030 --> 09:02.500 Yeah that's pretty much what I'm seeing over here. 09:02.930 --> 09:03.950 Excellent. 09:03.950 --> 09:08.450 So now I'm going to make that disappear and we can start moving the camera about. 09:08.510 --> 09:15.170 So the first thing I'm going to do here is whilst in the camera view shift in F Saidon go into first 09:15.170 --> 09:20.590 person view and perhaps I'll be able to get the camera in a position that makes sense. 09:22.940 --> 09:24.880 Now these are stretching away into the distance. 09:24.890 --> 09:26.060 And as you can see. 09:26.990 --> 09:28.850 I can move this around now. 09:28.850 --> 09:35.420 It looks probably a little lower than it than the nine anticipating it being her. 09:35.660 --> 09:40.800 Now this is trial and error and it can take a while to do so. 09:40.880 --> 09:44.770 Don't worry if you're not getting it right first time. 09:44.900 --> 09:48.820 Wow this is going to take a little bit of manipulation to do. 09:48.860 --> 09:52.640 And of course that's an ideal time for a challenge. 09:52.970 --> 09:58.970 I'd like you to go ahead and create your environment if you don't know the exact camera data. 09:59.000 --> 10:05.770 This will be judgment and trial and error as specially if you don't know it's actual. 10:05.810 --> 10:09.970 MM How wide an angle lens is and what camera it was taken on. 10:09.980 --> 10:15.270 Now I suggest picking a scene especially if you're new to this that you know this information. 10:15.290 --> 10:19.890 Otherwise you're going to spend in e.on tryna get to the end result. 10:19.940 --> 10:25.190 Now knowing the actual camera's position is helpful in this particular example that I'm going through 10:25.220 --> 10:28.070 I don't know where the photographer was stood. 10:28.070 --> 10:32.120 Now I'm going to assume he was stood on the ground he or she was stood on the ground but I don't know 10:32.120 --> 10:36.250 that they might be seated on top of a car or even in an aircraft control tower. 10:36.260 --> 10:38.650 Now look for features that can be followed. 10:38.660 --> 10:48.410 Now I've got some lines on the floor that I can map to a 3D model so it should only take me a few minutes 10:48.410 --> 10:49.280 to line. 10:49.280 --> 10:57.260 These are good enough that I can use it for placing 3D models on or other bits of geometry. 10:57.290 --> 11:03.950 Go ahead and add a ground plane and any other objects that would have a shadow cast upon them. 11:03.980 --> 11:09.320 So if you've got a pole or a little ridge in your Seen you need to model those as well so accurately 11:09.320 --> 11:09.930 is modelled. 11:10.070 --> 11:16.100 If you're modelling a window ledge you would have the model the lip over the edge as well so that shadows 11:16.100 --> 11:23.440 if the light is coming in from above cast properly over the wall ball's video now and give that a go. 11:25.300 --> 11:26.770 Okay guys welcome back. 11:26.770 --> 11:29.660 I'm going to continue now creating my environment. 11:30.580 --> 11:37.530 Now this is the stage I've gotten to so far and I am literally going to continue now moving the camera 11:37.570 --> 11:41.560 about into why get it roughly in the right position. 11:41.580 --> 11:45.550 Now this can take quite a while to get right. 11:45.550 --> 11:48.320 You know is it to the left is it to the right. 11:48.330 --> 11:52.240 Do I need to move quickly or slowly to align things. 11:52.300 --> 11:56.450 And yes this can be quite a tedious process. 11:56.460 --> 12:02.700 Now I'm not going to bore you with this particular process I'm going to fade out now and I'll come back 12:02.760 --> 12:06.490 after I faffed around for a bit and got it spot on. 12:08.000 --> 12:14.080 Okay so I'm almost here at the moment and I've noticed an issue of it is a clipping issue. 12:14.300 --> 12:15.590 I'm quite happy with this. 12:15.590 --> 12:19.080 Edge is lined up but then it kind of stops there. 12:19.080 --> 12:21.710 And that is the camera clipping distance. 12:21.710 --> 12:28.210 So if I go in to my properties I should be able to change the view propertys. 12:28.210 --> 12:33.410 Here we go clipping at a hundred or a thousand at the moment. 12:33.410 --> 12:40.340 If I increase fat I should see more and I don't swing and I go to my camera clipping and scroll down 12:40.340 --> 12:40.670 here. 12:40.700 --> 12:43.260 Here we go clippings ends at one hundred. 12:43.400 --> 12:46.060 So this is to do with the view itself. 12:46.370 --> 12:52.400 As in this view which when I first created the shape I thought I had plenty of space but the camera 12:52.430 --> 12:59.720 clipping is under the camera settings itself and once I extend that you can see it is now going into 12:59.720 --> 13:00.750 the distance. 13:00.770 --> 13:06.530 Son of a set that at a thousand as well and what that will be able to do is give me some more guidance 13:06.530 --> 13:12.800 in making sure that this is correct and it's not at the moment so I will see you guys back in a few 13:12.800 --> 13:13.790 moments. 13:14.210 --> 13:15.710 Okay so welcome back. 13:15.710 --> 13:18.090 And I think I'm almost done. 13:18.120 --> 13:25.160 What I have done to try to approximate my my actual ground plane is I've jupe I've made these pieces 13:25.160 --> 13:28.000 just a little bit thinner than they were before. 13:28.010 --> 13:30.400 Alan I've while pieces there's plural. 13:30.400 --> 13:38.480 I've created a couple of them because I think these gaps in the runway are different are different spacing 13:38.480 --> 13:41.350 basically So I've made a couple of them laid them out. 13:41.360 --> 13:46.970 I seem to be getting quite a good correlation between what I can see on the camera and what I can see 13:46.970 --> 13:47.900 here. 13:47.960 --> 13:53.990 Now I think these lines actually arch away ever so slightly so there may be a bit of distortion on the 13:54.020 --> 13:55.360 on the actual image itself. 13:55.490 --> 14:02.180 Now one of the things I don't have or didn't consider is the other really good line and that's the horizon 14:02.180 --> 14:02.740 line. 14:02.840 --> 14:11.150 So I tried to match up the end of my piece with the horizon which I think I've done pretty accurately 14:11.150 --> 14:11.570 here. 14:11.810 --> 14:15.340 So what I should be able to do now after I've played with those things. 14:15.350 --> 14:19.940 First of all I'm going to save because it took me ages to get the camera into that position to me about 14:19.940 --> 14:25.790 5 or 10 minutes of faffing backwards and forwards and I'm literally going to scale this up on the x 14:25.790 --> 14:32.600 axis so that it fits our runway or at least fits wherever the shadows and everything else are going 14:32.600 --> 14:33.200 to go. 14:33.250 --> 14:36.010 You can see here Virts it's. 14:36.870 --> 14:38.450 It is expanding a wave. 14:38.520 --> 14:44.610 I don't want it really too but that doesn't matter I can still move the object itself so it still lies 14:45.210 --> 14:47.060 in roughly the right place. 14:47.070 --> 14:50.690 Now I'm just going to scale back on the z axis just a little bit more. 14:50.750 --> 14:56.510 I'll go over the corner of our picture and what happens over here in the distance doesn't really matter 14:56.520 --> 14:59.030 we can see that it's slightly slanted away. 14:59.400 --> 15:04.770 I don't think it's going to cause us any issues and if we zoom out in this sort of realm we can see 15:04.770 --> 15:11.130 that's quite a large runway anyway so no matter where we put an object on there it should not matter. 15:11.130 --> 15:13.910 In fact if there's an object right in the distance. 15:14.160 --> 15:19.020 Well to be quite honest we're not going to really see any detail that it causes so this is the area 15:19.080 --> 15:23.080 that was were literally going to be casting a shadow on in a few moments. 15:23.250 --> 15:26.310 So my scenes all set up and ready to go. 15:26.310 --> 15:28.460 How did you find setting up your scene. 15:28.590 --> 15:33.310 You will see that it is somewhat of a pain to try and get it right. 15:33.360 --> 15:39.870 Hence knowing that the more information about your scene the camera the lens that it was taken on is 15:39.870 --> 15:41.910 very important. 15:41.940 --> 15:46.890 Please show your work in the discussions and I will see you guys in the next lecture.