WEBVTT 00:00.450 --> 00:03.420 Welcome to lighting in blender. 00:03.420 --> 00:09.720 So in this video we're going to understand that the lamps themselves mainly apply to blender render 00:10.140 --> 00:15.600 not the cycles engine in fact light is handled differently in cycles. 00:15.600 --> 00:22.140 Amongst other things we're going to be adjusting lamps properties and seeing its affect. 00:22.260 --> 00:28.680 We will switch into rended mode in the viewport shading options to see what is actually happening as 00:28.680 --> 00:29.760 well. 00:29.760 --> 00:34.840 Now before we hop over into blender Let's look at the different lamp options. 00:34.950 --> 00:39.150 So we've got a nice table here with the type of lamp on the left. 00:39.270 --> 00:42.960 Moving across to its description and a real world example. 00:43.050 --> 00:48.930 So we have a point lamp which is an only directional point light source so the light comes out of it 00:49.230 --> 00:53.940 evenly in every direction much like a traditional light bulb. 00:53.940 --> 00:55.270 You'd have at home. 00:55.440 --> 00:59.650 Now a spot light is a directional point light source. 00:59.760 --> 01:05.100 So it's very similar to the point source only it has direction to it so if you imagine like a spot light 01:05.310 --> 01:11.790 or perhaps when you put a lamp shade over the top of a of the normal bowl it makes it into a directional 01:11.790 --> 01:12.890 light. 01:12.900 --> 01:18.710 Now an area lamp simulates an area that's producing light. 01:18.780 --> 01:24.510 So like an open window or a TV laptop screen something along those lines. 01:24.540 --> 01:26.420 Now Hemmy is the odd one out here. 01:26.430 --> 01:28.160 It doesn't produce any shadows. 01:28.230 --> 01:34.190 It's a soft and far away light source much like the sky is on a cloudy day without any direct sunlight. 01:34.200 --> 01:37.160 You'll notice that shadows are few and far between outside. 01:37.170 --> 01:39.940 When that happens and finally the sun. 01:39.990 --> 01:48.420 Well no guesses there is simulates the sun a far away but still direct light example the sun. 01:48.420 --> 01:55.780 This of course is like a spotlight in many ways because it has a direction to it so it casts a shadow. 01:56.040 --> 01:59.270 But it will light up the entire scene evenly. 01:59.590 --> 02:02.720 Okay let's hop straight on over into blender. 02:03.840 --> 02:05.640 Right so we're in a blender here. 02:05.670 --> 02:08.220 And let's just work out our workspace. 02:08.220 --> 02:10.630 Now I've opened up a new blender file. 02:10.640 --> 02:16.740 If you haven't done this yet please save the stuff you're working on and open up a new blender. 02:16.940 --> 02:22.200 So I'm just going to organize my workspace here and just remove the bits that I don't need to get rid 02:22.200 --> 02:23.550 of the time line at the bottom. 02:23.550 --> 02:29.590 I'm going to pull out these two windows here because we're going to use both of those in a moment and 02:29.590 --> 02:31.940 that's going to make the outliner a little larger. 02:32.170 --> 02:38.340 Okay so we can see in our scene and you probably spotted it before that we have at least a camera a 02:38.340 --> 02:41.040 cube and a lamp in our scene. 02:41.160 --> 02:46.260 Now all of these are objects in can she'd grab the transform handles and move them about to your heart's 02:46.260 --> 02:49.950 content or hit G and move around the lamp as well. 02:50.250 --> 02:50.880 Absolutely fine. 02:50.880 --> 02:55.700 You can do that with any other any object that's in our 3-d view. 02:55.860 --> 02:59.690 So first of all let's go and play with the lamps and see what they look like. 02:59.700 --> 03:00.800 So in order to do that. 03:00.810 --> 03:07.290 What I'd like you to do is select this cube here and move it up just so it's floating above this surface 03:07.290 --> 03:07.830 here. 03:08.070 --> 03:15.390 And then we're going to add a nother mesh which is just a plain and simply scale that up to act as a 03:15.390 --> 03:17.800 floor it doesn't really matter how big it is. 03:17.850 --> 03:19.160 In some ways the bigger the better. 03:19.170 --> 03:20.160 But there we go. 03:20.550 --> 03:26.770 And now next to where it says object merode in the 3D ed where you can switch it backwards and forwards. 03:26.850 --> 03:29.670 We have the viewport shading options. 03:29.760 --> 03:35.280 And usually we've been working with solid right at the very top of that is rendered. 03:35.310 --> 03:40.550 Now this was is what it will look like if you have a blender render selected. 03:40.560 --> 03:47.460 If it looks a bit faded out something like this you probably have cycles render selected and we will 03:47.460 --> 03:53.310 be working for the rest of this certain section in a blender render so make sure it selected a blender 03:53.370 --> 03:55.590 render on the info header. 03:55.630 --> 03:58.160 They're brilliant So we're in here. 03:58.170 --> 04:00.890 Now let's play with our lamp. 04:00.990 --> 04:03.400 So we have a lamp here. 04:03.540 --> 04:11.970 And once it's selected in the Properties window we can see a long is the same icon It's this circle 04:11.970 --> 04:14.440 with for arrows coming out of it. 04:14.520 --> 04:16.970 And this is these are our lamp options essentially. 04:17.040 --> 04:21.010 And if we scroll down there's a preview there that gives you an idea of what's going on. 04:21.060 --> 04:22.700 But even better is the preview. 04:22.700 --> 04:25.620 We can see right in front of us here. 04:25.860 --> 04:28.520 So I'm going to scroll down so you just see lamp. 04:28.680 --> 04:33.900 So at the moment set to a point lamp omnidirectional light source so it fills up the scene but as you 04:33.900 --> 04:38.070 can see it fades away as a couple of ways you control that fade. 04:38.100 --> 04:43.530 No one is the starting energy and if you turn up the starting energy obviously makes the lights really 04:43.530 --> 04:44.490 really bright. 04:44.550 --> 04:47.830 And obviously if you turn it all the way down eventually it will just go black. 04:47.850 --> 04:54.570 And beneath that we have the fall off which tells blender how to manage the way that it gets dark how 04:54.570 --> 04:56.660 quickly the light falls off. 04:56.660 --> 05:00.500 Essentially you can change those about and just see constant. 05:00.510 --> 05:05.190 Inverse Square is usually quite good to work with but you can play to your heart's content with that 05:06.010 --> 05:06.480 right. 05:06.480 --> 05:13.380 So we've got those two options there and further down we can go in to shadow we can have it cast no 05:13.380 --> 05:14.400 shadow which is a bit odd. 05:14.400 --> 05:20.340 I do like it casting a shadow because it looks a bit better and we have our sampling for a shadow. 05:20.580 --> 05:26.580 Now in general you want to have that add a bit higher than one but I don't suggest putting it too high 05:26.580 --> 05:29.240 otherwise you may slow computer down to a crawl. 05:29.280 --> 05:35.940 If we set or a hundred for instance you can see how slow that is to get the detail into our scene. 05:35.940 --> 05:42.590 If we say Sorry I say sets to 100 you can only send it to 64 Maxima sense is something like 10. 05:42.660 --> 05:47.000 It's relatively quick to finish off the rendering of that scene. 05:47.010 --> 05:52.680 Now the soft sighs if we increase that as you've probably gathered it makes the shadows sense were under 05:52.680 --> 05:54.440 shadow a bit softer. 05:54.450 --> 06:00.470 And eventually we end up with something that looks a bit better than that harsh square that we had before. 06:00.510 --> 06:06.560 So let's have a look at the other lamp types that we've got so sun will also cast a shadow. 06:06.870 --> 06:12.360 But as you can see the rest of the scene is uniformly lit apart from up. 06:12.390 --> 06:17.360 If we move round you can see that some sides of the cube are darker than others. 06:17.370 --> 06:22.470 And in fact some of them are black so this is something that you have to get used to with Blender. 06:22.740 --> 06:27.090 Is that if a surface is not being hit by any lights at all. 06:27.090 --> 06:28.450 It just turns black. 06:28.460 --> 06:30.790 There is no detail in there whatsoever. 06:31.190 --> 06:31.610 Okay. 06:31.620 --> 06:34.830 Let's zoom out and move round and turn on the spotlight. 06:35.070 --> 06:39.810 So here we have our spotlight not highlighting our cube very well at all. 06:39.960 --> 06:45.540 And if you were setting up a scene like this you could hop back into solid mode here and actually see 06:45.540 --> 06:47.180 the cone itself. 06:47.250 --> 06:53.360 We can see here that our spotlight is basically not highlighting our cube at the moment. 06:53.370 --> 06:58.580 And if I do that the good chance is that it's now doing that bobbing back into rendered mode. 06:58.590 --> 06:59.670 And there we go. 06:59.670 --> 07:03.260 Cube is now being hit with that spot and you can see very quickly. 07:03.310 --> 07:07.630 Rest of the scene that isn't in our spot light goes black. 07:07.650 --> 07:13.120 You can control that as you scroll down you can actually change the spot shape so that's underneath 07:13.120 --> 07:18.640 the shadow options we were playing with a moment ago the spot shape you can increase the degrees that 07:18.790 --> 07:21.550 light is or even narrow it down. 07:21.560 --> 07:22.510 If you want to. 07:22.690 --> 07:29.110 Now we've got the blend which dictates how easy or how smooth the blend between light and dark is you 07:29.110 --> 07:31.820 can have a square spotlight if you like. 07:31.900 --> 07:34.890 And this one I really love this the halo. 07:35.050 --> 07:39.080 It produces that wonderful thing that intensity one is too much. 07:39.070 --> 07:43.960 But if we turn that down a little Let's or more probably even point one that's pretty. 07:43.960 --> 07:47.350 So that's it's almost like a window opening or something like that. 07:47.350 --> 07:48.790 I do like that affect. 07:48.820 --> 07:49.480 It does. 07:49.630 --> 07:53.120 Now this beam here can end up being quite short. 07:53.140 --> 07:56.610 And that's all to do with this distance here under falloff. 07:56.880 --> 08:01.990 So if we turn that down you can see that you can end up with it looking a bit like that at times which 08:01.990 --> 08:02.860 just looks a bit odd. 08:02.860 --> 08:06.410 If that does happen you just turn up the distance to a certain amount. 08:06.430 --> 08:07.580 And there we go. 08:07.660 --> 08:10.860 It's all the cone is all the way to the surface. 08:10.930 --> 08:12.330 It's hitting now Hemmy. 08:12.340 --> 08:17.700 As I said that's one of these other ones which is going to turn the energy down just a little and found 08:17.770 --> 08:19.810 a type in one and set it back to default. 08:19.810 --> 08:24.230 Now here we go you can see all around our objects. 08:24.400 --> 08:30.460 This is one of the ones that doesn't cast a shadow but also means that the sides are not being affected 08:30.460 --> 08:35.280 by the lichens hemming is still directional if we pop into object mode. 08:35.290 --> 08:41.610 We can see that it has a line coming from it's in fact the sun also has a line coming from. 08:41.620 --> 08:45.940 You see the icon changes slightly as well depending on what we do. 08:46.060 --> 08:51.500 So it still has a direction to it but it does not cast a shadow but it illuminates our scene quite even. 08:51.620 --> 08:56.170 So you can use a mixture of lamps in your scene to emulate the real world. 08:56.380 --> 08:58.250 And finally we have area. 08:58.510 --> 09:05.170 So let's hop back into a rendered mode on the viewport shading and all that's really bright so in this 09:05.170 --> 09:10.360 case let's play with some of the options that's play a distance that looks a bit better and looks much 09:10.360 --> 09:10.780 better. 09:10.780 --> 09:13.550 And eventually you'll find a level that works for you. 09:13.630 --> 09:14.580 How the. 09:15.560 --> 09:20.160 Shallow here it looks a bit horrible actually to be quite old. 09:20.270 --> 09:26.200 And that's because we got samples and the x direction at 10 in the y one I'm guessing. 09:26.210 --> 09:30.610 So if we put that 10 in 10 it's a much smoother shadow so area. 09:30.620 --> 09:35.450 So as the lights coming out it's not coming from a point anymore is emulating a size. 09:35.450 --> 09:37.960 And we can scroll down and you can see the areas shape. 09:38.000 --> 09:43.100 So this is where you would tweak and depending on the size of the window in the room or something along 09:43.100 --> 09:48.800 those lines so you could have a really really wide window in the room 10 by 10. 09:48.800 --> 09:54.470 I presume that's blender units there and obviously the shadow ends up being almost nothing but if you 09:54.470 --> 10:00.950 had a tiny window in a room perhaps one by one that would be more like a point light source because 10:00.950 --> 10:03.380 it would be much much smaller. 10:03.380 --> 10:07.460 So feel free to play with these options here as much as you like. 10:07.730 --> 10:14.180 It's great fun playing with lights in RC and you can see their effect in real time on the window here. 10:14.180 --> 10:19.730 Now perhaps you want to work with the model and the lamp so you can move around independently. 10:19.730 --> 10:20.140 Sure. 10:20.150 --> 10:22.180 Grab yourself another window. 10:22.220 --> 10:27.390 So you've got a rendering we're just going to move this one income working at quite a low resolution. 10:27.470 --> 10:28.960 Can I get rid of my tool shelves. 10:28.970 --> 10:34.910 So here we have our rendering onsets just two 3-d windows and we have our rendering on the left and 10:34.970 --> 10:37.060 our 3D view on the right here. 10:37.130 --> 10:41.750 And the great thing about this is we can move this to our heart's content and then on the left hand 10:41.750 --> 10:43.410 side or wherever you've put it. 10:43.460 --> 10:49.730 See the differences are can change that to spots and then move it and we can see straight away real 10:49.730 --> 10:52.980 time changes that have been made brilliant. 10:53.150 --> 10:55.900 So I think this is a challenge for you guys coming up. 10:57.910 --> 10:59.840 Set up some lights. 10:59.920 --> 11:00.610 So go ahead. 11:00.640 --> 11:05.240 And in our chests scene place some lamps to light are seen. 11:05.260 --> 11:08.260 Now is your choice of how you want to light it. 11:08.260 --> 11:10.560 Play about an experiment. 11:10.600 --> 11:11.860 I'll give you a few hints here. 11:11.890 --> 11:20.050 I'm probably going to use a sunlamp and a Hammie lamp in order to generate a uniform light for our scene. 11:20.050 --> 11:25.270 But if you want it to be more dramatic perhaps play with a couple of spotlights and casts long shadows 11:25.270 --> 11:26.170 across the board. 11:26.170 --> 11:29.170 It's entirely up to you this is your artistic choice. 11:29.170 --> 11:30.190 Have fun. 11:30.190 --> 11:32.870 Pause a video now and give that a go. 11:34.940 --> 11:35.840 Okay guys. 11:35.840 --> 11:36.890 Welcome back. 11:36.890 --> 11:39.170 Now let's see how I would light the scene. 11:39.170 --> 11:43.590 It may be different to how you've done it but let's have fun and see how we get on. 11:44.540 --> 11:44.900 Right. 11:44.900 --> 11:52.280 So let's open up our chess scene so open low poly chess set chess scenes. 11:52.340 --> 11:52.820 There we go. 11:52.820 --> 11:55.880 So this is how it's looking at the moment which is brilliant. 11:55.880 --> 11:59.270 We've got our hierarchy all set up here. 11:59.270 --> 11:59.860 Excellent. 11:59.960 --> 12:03.760 So we've got one lamp in the scene and it's pretty low down. 12:03.800 --> 12:06.210 First of all I'm just going to see how it looks. 12:06.350 --> 12:09.540 So let's hop straight down into rended mode. 12:09.860 --> 12:12.290 Well that's actually that's kind of dramatic. 12:12.290 --> 12:13.450 Kind of like that. 12:13.790 --> 12:17.080 But I do want to light up all my pieces I kind of want to show them off. 12:17.090 --> 12:23.000 In this case and remember you can always alter your lamps at any point you're not stuck. 12:23.000 --> 12:28.850 In fact you could create lots of lamps and you seem to move them about as if there was an array of lights 12:28.850 --> 12:29.740 above you. 12:29.900 --> 12:31.460 You know the choice is yours. 12:31.460 --> 12:39.280 So in this case however I will want to have a sun lamp that does the entire scene. 12:39.290 --> 12:40.550 Absolutely fine. 12:40.550 --> 12:44.840 But what it does do unfortunately is create these nasty shadows. 12:44.840 --> 12:51.110 So I'm going to simply select the lamp in the outline now and pop over to the 3-d window and duplicate 12:51.110 --> 12:56.180 it not a linked duplicate that's great if you've got multiple lights and you want to control them all 12:56.180 --> 12:57.260 at once. 12:57.260 --> 13:01.940 However if I just do a simple duplicate we've now got two sons. 13:02.090 --> 13:08.240 But what I can do here in all of moving that lamp I don't want to do that we just can't see us doing 13:08.240 --> 13:08.450 that. 13:08.450 --> 13:10.200 Some in the rendered mode. 13:10.310 --> 13:12.720 This lamp here so we're going to call this one sun. 13:13.900 --> 13:16.630 And I'm going to call this one ambient. 13:19.220 --> 13:20.050 Excellent. 13:20.060 --> 13:24.950 So you've got sun and an ambient or change of name them both the same. 13:24.950 --> 13:26.760 That's really clever of me. 13:26.900 --> 13:32.140 And I'm going to group these together into our lighting so I'm going to create. 13:32.150 --> 13:34.240 You don't have to do this yourself. 13:34.250 --> 13:36.460 I'm just doing it for my hierarchy. 13:36.470 --> 13:39.990 I'm going to create an empty doesn't matter what it is. 13:40.060 --> 13:41.980 I'm going to I'm going to make it a sphere. 13:41.990 --> 13:48.740 I'm going to call this lighting and that just helps group my lighting all together as well. 13:48.740 --> 13:52.220 So there we go all in there and set the parents object. 13:53.170 --> 13:55.400 And I'm going to correct spelling mistake there. 13:55.400 --> 13:55.780 There we go. 13:55.780 --> 14:00.310 So enlightened and we got ambient and sun and both of them are a sun at the moment and we can see who 14:00.310 --> 14:02.170 have got these dark areas. 14:02.200 --> 14:06.640 However on the ambient one when it's selected I'm going to go to Hemmy. 14:06.640 --> 14:08.690 Now it looks like that we still got some shadows. 14:08.710 --> 14:13.900 But I think the heavy's habit is actually making the board very very bright in this case. 14:13.930 --> 14:21.220 So I'm going to turn down the energy that the Hemi has perhaps even learned to as Tried point three 14:21.220 --> 14:22.540 or thereabouts. 14:23.290 --> 14:23.520 Yeah. 14:23.530 --> 14:24.130 I like that. 14:24.140 --> 14:25.630 That's that's good. 14:25.630 --> 14:33.000 Let's go to the sun itself and I'm going to split this window so I can see what's going on. 14:34.260 --> 14:37.700 Now the sun is here in our scene. 14:37.700 --> 14:44.930 I don't want it there if I put it here and just rotate rotate round lift up a little more. 14:44.930 --> 14:49.640 It is a sun off the rail rotate that down so you can have lots of fun with this. 14:49.640 --> 14:53.800 It's now shining on our board that's for a take round the rendering. 14:54.060 --> 15:01.190 Let's go to view and just view selected riego resumed in there. 15:01.530 --> 15:03.290 Yeah that looks good. 15:03.300 --> 15:04.600 I like that lots. 15:04.620 --> 15:05.700 Nothing's blown out. 15:05.700 --> 15:08.220 We've still got detail over the place. 15:08.220 --> 15:09.390 I like that lots. 15:09.390 --> 15:13.190 How did you guys get on please share your lighting attempt. 15:13.230 --> 15:17.910 In the discussions I'd love to see what lighting schemes you came up with yourself. 15:17.910 --> 15:21.210 Perhaps some groovy spotlights there or a deep dark thing. 15:21.210 --> 15:27.090 Remember we do want to show off our pieces on our board at the moment that don't make it to know are 15:27.090 --> 15:32.230 honest to dark and contrasty because we won't be able to see all the effort you guys are putting in. 15:32.580 --> 15:33.190 Okay. 15:33.390 --> 15:37.670 As I said put those in the discussions and I will see you in the next lecture.