WEBVTT 00:00.150 --> 00:03.820 Welcome to combining shaders in cycles. 00:04.020 --> 00:10.260 In this video you give the eye a material that is a combination of different shaders using the node 00:10.260 --> 00:10.950 editor. 00:11.190 --> 00:13.700 So let's hop straight on over into blender. 00:14.860 --> 00:16.750 So I've got my two eyeballs here. 00:16.750 --> 00:19.980 Remember they're a mirror of one another so one of these is real. 00:19.990 --> 00:23.240 And one of them is essentially a reflection of it. 00:23.380 --> 00:28.780 As I mentioned before make sure if you get a flat shading that the eyeballs are facing outwards from 00:28.780 --> 00:30.020 your rabbits. 00:30.160 --> 00:36.020 I'm going to go straight into this eyeball here using the number pad full stop. 00:36.130 --> 00:37.440 That looks like it is the one. 00:37.450 --> 00:38.160 Yes it is. 00:38.170 --> 00:43.110 When I hop into edit mode it's just going to remember to turn smooth shading back on. 00:43.180 --> 00:45.090 Eyeballs are quite smooth. 00:45.160 --> 00:49.100 So with the whole eyeball selected we're going to assign it's a material. 00:49.150 --> 00:50.870 So let's go to the materials tab. 00:51.790 --> 00:52.900 To make this a bit bigger. 00:53.050 --> 00:57.040 And I'm going to create a new material and just call it a ball. 00:57.040 --> 00:59.330 Now we're going to see too much of this eye ball. 00:59.350 --> 01:01.200 But it's still worth getting this bit. 01:01.210 --> 01:02.400 Right. 01:02.460 --> 01:08.410 And just leaving it as it is at the moment I'm going to set the colour to bright white and those who 01:08.410 --> 01:10.180 assign it to the ball. 01:10.240 --> 01:11.740 Excellent. 01:11.750 --> 01:20.470 Now it's not going to be just a diffuse colours going to be a mixture of that plus a glossy colour his 01:20.530 --> 01:23.080 eye balls are slightly glossy. 01:23.080 --> 01:24.910 So let's go ahead and do that now. 01:24.910 --> 01:30.160 So when he opened up the note editor so going to create a I'm going to go at the top here. 01:30.220 --> 01:35.590 Well first thing we've had to do something here I'm just going to press the plus here and I'm just going 01:35.590 --> 01:39.280 to name this something else. 01:39.640 --> 01:44.850 I don't know I bought for the moment because that's what the workspace I'm using for I'm going to generate 01:44.860 --> 01:46.210 a new workspace from here. 01:46.210 --> 01:48.050 The reason why I've done that is I don't. 01:48.320 --> 01:52.710 I know that going through this process I'm going to ruin my default layouts. 01:52.780 --> 01:57.790 And of course this is going to be specialists for just this one case anyway so we're going to have to 01:57.790 --> 01:59.390 open up the node editor. 02:00.330 --> 02:01.000 There we go. 02:01.050 --> 02:01.380 Wow. 02:01.380 --> 02:05.520 That's small so I'm going to zoom in and we can see the way it's set up. 02:05.520 --> 02:08.970 We've got a diffuse shader. 02:10.120 --> 02:16.010 And the outputs is what it looks like something to turn on rended mode here. 02:16.790 --> 02:20.900 So we can see what's going on and not so Lofts at the moment. 02:20.900 --> 02:25.970 That's probably because there's no light in our scene some just going to turn the lamp on as well. 02:26.060 --> 02:27.370 Much better. 02:29.780 --> 02:31.570 So you've got this the fault shayler here. 02:31.620 --> 02:34.310 I'm going to change the lamp type to a sun. 02:34.610 --> 02:35.430 So we've got. 02:35.450 --> 02:37.100 Ah I hear. 02:37.130 --> 02:39.430 And let's go back to it. 02:39.680 --> 02:44.640 We have a diffuse shader going into the output which is what it looks like. 02:44.780 --> 02:52.160 Now I'm going to go down here to where it says add and go to another shader and it be a glossy shade 02:52.160 --> 02:55.180 up and I'm going to place that here. 02:55.910 --> 03:03.770 Now the next thing I need to do is mix these two shaders into one before they go to the surface in order 03:03.770 --> 03:04.220 to do that. 03:04.220 --> 03:06.410 Im going to use something called a mix shader. 03:06.410 --> 03:14.030 Now there are two ways essentially of combining these shaders ones ever a mix shader or an add shader. 03:14.180 --> 03:18.560 They have to be careful with an ADD shade because it literally adds the values together so you can end 03:18.560 --> 03:20.720 up with something that is incredibly bright. 03:20.720 --> 03:26.750 But in this case we want a mix shade because we want to be able to control the ratio between fuse and 03:26.900 --> 03:28.030 glossy. 03:28.220 --> 03:36.110 So I'm going to add this time in a different way with shift in a like you used to when adding a a primitivo 03:36.110 --> 03:38.690 or something like that in the 3D editing mode. 03:38.900 --> 03:43.060 And I need to add a shade of type mix. 03:43.070 --> 03:49.790 Now another way of doing that is if you know the name is you can click on search here and I've obviously 03:49.820 --> 03:53.980 previously searched MC shade up the moment you type in mix. 03:53.990 --> 03:57.160 It's one of the options there so I'm going to click MC shader. 03:57.290 --> 04:02.570 Now I can immediately place it on top of this line here and you see it goes orange. 04:02.710 --> 04:05.310 And when I click it's going to link it in. 04:05.360 --> 04:05.990 Brilliant. 04:06.750 --> 04:11.740 The final thing we need to do is go from whereases be STF on the cross he showed up. 04:12.670 --> 04:15.910 Plug it in to the shader down here. 04:16.060 --> 04:22.640 And now we can see we've actually got a bit of speculative bit of gloss to our eyeball. 04:23.850 --> 04:28.530 The final thing with the MC shader is of course there's this factor here. 04:28.530 --> 04:36.210 And so we can make it 100 percent diffuse completely ignoring the settings we've got on glossy or we 04:36.210 --> 04:38.490 can make it 100 percent glossy. 04:38.550 --> 04:43.360 We don't want to either we want it somewhere in between and we can always go ahead and alter this later. 04:43.500 --> 04:50.040 But the default value of about point two or thereabouts is perfect because it gives us a little bit 04:50.130 --> 04:52.430 of a gloss to it. 04:52.680 --> 04:53.580 Perfect. 04:53.640 --> 04:56.360 So I feel a challenge coming on for you guys. 04:56.400 --> 05:02.430 I would like you to create the rest of the materials so go ahead and create and assign the following 05:02.430 --> 05:03.880 additional materials. 05:03.960 --> 05:12.840 The iris and pupil use the eyeball material as the starting point remembering to make it unique for 05:12.930 --> 05:15.520 each material. 05:15.520 --> 05:18.470 Then finally use the reference material. 05:18.510 --> 05:25.850 If you find that necessary to make sure that the eye has the pupil and the iris in the right proportions. 05:26.040 --> 05:28.670 So pause a video now and give that again. 05:31.220 --> 05:31.870 Okay guys. 05:31.880 --> 05:32.780 Welcome back. 05:32.780 --> 05:36.880 Let's hop over into blender and assign the iris and pupil materials. 05:38.100 --> 05:38.570 Right. 05:38.580 --> 05:44.790 So the first thing I'm going to do and you can do this in any particular order that you want so I'm 05:44.790 --> 05:47.700 going to create the two new materials first. 05:47.700 --> 05:49.600 Or at least the slots for them. 05:49.740 --> 05:53.910 And I'm going to click here and pick up. 05:53.910 --> 05:54.830 I bought. 05:55.580 --> 06:00.840 And then I'm going to click the number two here to make it a single user copy. 06:01.340 --> 06:03.850 And I'm going to call that Iris. 06:03.910 --> 06:06.410 I want to do the same to this one underneath. 06:06.410 --> 06:09.280 I'm going to click here select eyeball. 06:09.290 --> 06:15.630 Make it a single user copy by clicking the number and naming that one pupil. 06:18.010 --> 06:20.200 Now depending on which one we're on. 06:20.500 --> 06:23.950 We obviously are going to be changing the materials. 06:24.100 --> 06:29.100 If we had not made them unique when we change one material it will change the original eyeball mature 06:29.100 --> 06:30.580 and we don't want that to happen. 06:30.850 --> 06:36.010 So with the pupils selected I'm going to go down here to diffuse and change that to black and just going 06:36.010 --> 06:42.730 to have my pupil completely black on both of these that the colour of them blacked out for the time 06:42.730 --> 06:49.890 being I'm going to make my iris probably an orange brown colour to match the iris we were making earlier. 06:50.080 --> 06:55.680 But that would just be for reference because shortly the colour itself would be overridden by a texture. 06:55.720 --> 06:57.480 But that's in an upcoming lecture. 06:57.820 --> 07:01.580 So finally we need to assign these new material some of them. 07:02.400 --> 07:06.150 Squeeze this one down a little or if I pick up the right thing. 07:06.540 --> 07:07.850 Let's pull this down. 07:07.850 --> 07:15.210 Skip bring the head of barback with this little Plus down here and change this to solid Hopkins edit 07:15.210 --> 07:20.330 mode and let's just have a look from about here. 07:20.370 --> 07:24.210 So these select everything I'm going to you circle select because it's going to be the easiest thing 07:24.210 --> 07:30.950 and of course I can make this circle bigger and smaller and I'm going to select everything here. 07:31.960 --> 07:39.600 And assign once the select there in a sign that that's of course you won't be able to see these assigned 07:39.610 --> 07:43.140 materials into urine material view. 07:43.130 --> 07:45.550 So I'm going to leave it like that for the moment. 07:45.550 --> 07:52.420 Now finally the actual pupil itself now rabit pupils are quite large. 07:52.480 --> 07:56.630 So let's go ahead here and again. 07:56.650 --> 08:01.790 These select everything circle selects bout that much I think. 08:02.510 --> 08:05.680 Ang Let's go to pupil and a sign. 08:06.540 --> 08:07.250 Excellent. 08:08.020 --> 08:13.210 With that in mind I'm probably going to make the iris slightly bigger as well so I'm going to use a 08:13.210 --> 08:14.520 loop select here. 08:14.530 --> 08:19.540 So we got face in a select loop around there go to Iris and sign. 08:19.840 --> 08:24.090 So we've got all of our materials now assigned to our model. 08:24.220 --> 08:27.740 Of course we can very quickly check that and see how this is looking. 08:27.780 --> 08:31.170 So let's go ahead and render the image. 08:31.690 --> 08:35.010 I believe I've got it all set up to render correctly. 08:35.010 --> 08:35.990 So what have we got here. 08:36.010 --> 08:36.470 There we go. 08:36.470 --> 08:38.340 So we've got our bunny. 08:38.620 --> 08:39.760 It's looking good. 08:39.760 --> 08:40.210 Excellent. 08:40.210 --> 08:41.630 How did you guys get on. 08:41.690 --> 08:44.060 Please share your eyeball in the discussions. 08:44.210 --> 08:46.740 And see you in the next lecture.