WEBVTT 00:00.520 --> 00:04.210 Welcome to fake users in this video. 00:04.220 --> 00:07.880 You'll learn how to give your hair or fur colour. 00:07.940 --> 00:12.030 Understand about fake users and how to use them. 00:12.310 --> 00:18.700 And finally realize what the zero before anything in blender whether it's a brush whether it's immaterial 00:19.170 --> 00:23.300 etc etc. or a particle system what that means. 00:23.530 --> 00:26.550 So let's hop straight on over into a blender. 00:27.010 --> 00:33.010 Okay so at the moment as you've seen when we render are lovely rabbits we dont get anything. 00:33.130 --> 00:35.670 We just get this grey based material. 00:35.920 --> 00:41.250 So on the particle system itself we're not seeing anything that's because we've got the eyes selected 00:41.260 --> 00:42.620 we can see that in the outline. 00:42.790 --> 00:45.520 So if I select the rabbit itself we'll get our settings back. 00:45.530 --> 00:49.630 I'm going to drag this up so I can see what's going on further down. 00:49.630 --> 00:54.540 Now here we have default material which is what it's set to at the moment. 00:54.640 --> 00:58.180 But there are no other materials assigned to our rabbit. 00:58.330 --> 01:04.700 So in order to make sure that we have hair on our rabbit we need to. 01:04.720 --> 01:13.090 Whilst the rabbit object is selected give it a material in here so we could go here and as we can see 01:13.090 --> 01:17.840 now we've created a material and we call this mat one. 01:18.220 --> 01:22.960 And we can create as many materials against an object as we like solve. 01:22.960 --> 01:27.650 Just click the plus there to duplicate that and do Mat too. 01:27.770 --> 01:33.340 And we should see this dropdown we've got zero Matt 1 and 0 and just match to now the Zero means it's 01:33.340 --> 01:35.210 not assigned to anything. 01:35.320 --> 01:43.210 And if we decide at any point to save the file and shut it down whilst it's not assigned to anything 01:43.600 --> 01:50.080 it means that it will actually just vanish completely So if you spent ages setting up a material then 01:50.110 --> 01:56.500 you want to make sure that it's either assigned to something or assigned a fake user. 01:56.500 --> 02:00.890 Now we looked at this a few lectures back in the material brush. 02:02.280 --> 02:06.300 In the sculpting brushes we all had F's next to one another. 02:06.450 --> 02:13.950 So for the moment if we want to have two materials there and make sure that we keep material one we 02:13.950 --> 02:19.110 need to give it's a fake user how we've always done that is we've switched it across. 02:19.200 --> 02:23.610 But if you hit the F key we see that there are now two users. 02:23.610 --> 02:25.420 That's what this number 2 does. 02:25.500 --> 02:31.740 It means there are two users that use material one which is confusing but not. 02:31.860 --> 02:37.710 We've got the fake user and we've got the rabbit itself because it's assigned and if we go across here 02:37.770 --> 02:43.080 and switch over to material to when we have a look at the materials again we can see material to is 02:43.080 --> 02:51.690 actually assigned to this rabbit itself and the F material one is just assigned to a fake user so we 02:51.690 --> 02:53.190 don't lose it. 02:53.190 --> 02:59.670 Now the important thing is if you close blender sorry it only happens when you close blender so you 02:59.670 --> 03:04.740 saved your file and close it down when you open up anything with a zero next to it will disappear. 03:04.980 --> 03:09.320 Right so we've got two materials there and have we got two materials here. 03:09.500 --> 03:09.790 No. 03:09.790 --> 03:14.880 So there are not two materials on our rabbitte yet there are just two materials sat in the background. 03:14.880 --> 03:20.980 So if I press plus and we can go to this dropdown and I know it's the other one material. 03:20.980 --> 03:25.170 So we've got two materials in our on our object. 03:25.440 --> 03:30.300 So now it's there when we hop over to our ball. 03:30.330 --> 03:36.610 Let's just give them different colours that's give it green so we know what's going on and give it blue. 03:36.930 --> 03:40.560 Okay so we've got a green material and the blue material. 03:40.560 --> 03:48.240 Now when we go to our particle system and come up we can now see material one material two sitting there 03:48.660 --> 03:53.490 and these particle systems are associated with that mesh as well. 03:53.490 --> 04:00.750 So that's why these two materials have appeared on the material slots because both the material and 04:00.750 --> 04:04.490 the particle system are both assigned to the rabbit. 04:05.280 --> 04:12.120 So if we selected one of them and just switched over to rended mode we would see that we have a green 04:12.120 --> 04:12.730 bunny. 04:12.840 --> 04:14.160 Excellent. 04:14.160 --> 04:20.910 So that's how we go about making sure that we have materials science so we've got two different materials 04:20.910 --> 04:25.620 and of course you can have as many materials as you like and build them up in layers and we'll deal 04:25.620 --> 04:27.820 with that later on with the node system. 04:27.840 --> 04:34.410 But for now you can have as many materials as you like assigned against a particular object and then 04:34.440 --> 04:35.620 actually use them. 04:35.670 --> 04:40.200 And as you can see here we've still got f against our material one. 04:40.410 --> 04:42.240 So it is there and it's stored. 04:42.240 --> 04:48.300 Now if I click the cross here and get rid of it and go ahead and click on material once again you can 04:48.300 --> 04:51.330 see it automatically reassigned and remembers. 04:51.450 --> 04:53.490 Now if I hit the number two. 04:54.670 --> 04:57.130 It duplicates that material. 04:57.490 --> 04:59.750 Very very useful very powerful. 04:59.800 --> 05:05.270 And of course when we're on material once again if I just hit F again it's unassigned. 05:05.290 --> 05:08.100 That fake user that it had before. 05:08.240 --> 05:15.450 Oh click here we see that we've got material one the duplicate of material one and material to and then 05:15.700 --> 05:18.650 duplicate the material one actually has a zira against it. 05:18.670 --> 05:24.280 So if I was to shut down blender and reopen it that material would not exist anymore or just disappear 05:24.370 --> 05:26.190 as if it was never created. 05:26.320 --> 05:32.740 And that is of course the primary reason why you would use a fake user if you did not want that material 05:32.740 --> 05:35.110 to just evaporate into thin air. 05:35.200 --> 05:37.560 The next time you opened up your blender file. 05:38.560 --> 05:40.330 Okay guys it's Challenge time. 05:40.330 --> 05:47.960 I'd like you to give the bunny coloured hair so give your bunny a skin colour and a hair colour. 05:48.120 --> 05:52.780 You will need two different materials to do this and if you've been following along you'll actually 05:52.780 --> 06:01.510 have the base ones to work with then sets the skin material as a diffuse the f type material and set 06:01.510 --> 06:02.810 the hair material. 06:02.810 --> 06:08.930 So there is actually a shade a specifically for hair in cycles hair b s the f. 06:09.220 --> 06:12.030 So go ahead pause a video now and give that a go. 06:14.410 --> 06:14.970 Okay guys. 06:14.980 --> 06:15.800 Welcome back. 06:15.940 --> 06:18.390 Let's hop back over into blender. 06:21.220 --> 06:27.580 Okay so with our funky bunny here we're almost halfway there but I'm just going to run through it as 06:27.580 --> 06:32.620 if we hadn't done that so we'd have our basic bunny here I'm just going to switch over the solids so 06:32.620 --> 06:34.520 it's not so slow loading up. 06:34.750 --> 06:40.520 So first of all we know we want to give this a bunny itself some materials. 06:40.600 --> 06:47.140 So making sure that the object is selected we go to the materials tab in the properties window and we're 06:47.140 --> 06:51.110 going to need two materials some skin to hit the plus twice. 06:51.160 --> 06:55.000 We don't have any materials here so let's go ahead and create a new material. 06:55.330 --> 07:02.140 And I'm going to call this material skin and that's going to represent the actual rabbit's skin. 07:02.160 --> 07:09.400 Now we're not going to see this at first but if we ever parted the hair or perhaps some wind was blowing 07:09.640 --> 07:14.320 I'd want to make sure it was a reasonable colour that I didn't actually know what colour rabbitskin 07:14.320 --> 07:14.810 is. 07:14.830 --> 07:17.760 So I'm going to go for a light pinky colour. 07:18.750 --> 07:25.880 Now a good way of working out actually whether your hair is thick enough is actually to have completely 07:26.270 --> 07:32.380 really wild colours so if I set this pink all the way down to this bright magenta. 07:32.990 --> 07:36.610 If the hair wasn't thick enough I'll be able to see the magenta through it. 07:36.620 --> 07:40.730 And I have no idea how to make it slightly thicker but I think the hair is going to be thick enough 07:40.730 --> 07:43.590 in this case I'll just make it a lighter pink. 07:43.910 --> 07:46.150 And it is diffuse be STF. 07:46.160 --> 07:52.690 Now we can go in later and use the node editor to make this much more rich in terms of its materials. 07:52.700 --> 07:57.570 But since it's not going to be seen I'm happy would leaving it like that. 07:57.590 --> 08:06.290 So let's go ahead and this other material creates a new material and I'm going to call it fur for the 08:06.290 --> 08:06.920 moment. 08:07.220 --> 08:09.020 In fact I'm going to give it a name. 08:09.050 --> 08:10.480 Brown fur. 08:12.830 --> 08:13.940 Okay brilliant. 08:13.940 --> 08:16.060 So now we have brown fur here. 08:16.190 --> 08:20.370 I'm going to as you probably guess create some brown fur. 08:20.390 --> 08:25.490 So Brown obviously is not on this colour well so the next question is where do I get the brown from 08:26.050 --> 08:26.320 there. 08:26.330 --> 08:27.740 Well there's a couple of ways you can do it. 08:27.740 --> 08:28.780 I'm just going to do it by. 08:28.820 --> 08:30.060 I am. 08:30.080 --> 08:33.560 Hens themselves are actually quite light. 08:33.680 --> 08:38.200 If you ever look at a hair under a microscope it's almost see through. 08:38.300 --> 08:42.070 It's just the density of hairs that cause it to have a colour. 08:42.080 --> 08:48.030 Now you will have to bear this in mind if you are creating hairs on a model because they're going to 08:48.050 --> 08:53.760 the cycles engine is a physics space renderer when it comes to rendering. 08:53.780 --> 08:58.270 If you have very dark fur it's going to look even darker than you intended it to. 08:58.280 --> 09:04.220 So I'm going to set it as this orange colour for the moment and we're change this time to hair be STF 09:04.520 --> 09:08.450 and I'm going to actually before I do anything further. 09:08.450 --> 09:13.900 Going to move the camera around because I realize it's actually on the wrong side of our bunny So I'm 09:13.910 --> 09:16.260 going to rotate that Z. 09:16.370 --> 09:17.900 Oh that's rotating around there. 09:17.900 --> 09:24.630 If we set the pivot points as the rabbits down here that's the pivot point has a 3-d cursor. 09:24.720 --> 09:27.060 Now rotates long. 09:27.070 --> 09:32.400 That said axis and look at it from this angle it should still be pointing at our bunny. 09:32.750 --> 09:33.590 Let's just check. 09:33.610 --> 09:34.280 Yes it is. 09:34.280 --> 09:41.640 I'm going to move the camera about slightly and just zoom out ever so slightly there. 09:41.990 --> 09:42.600 Okay. 09:42.770 --> 09:44.130 So we've got that there. 09:44.150 --> 09:45.140 Let's go in here. 09:45.140 --> 09:48.380 Render and see how our bunnies looking at the moment. 09:48.380 --> 09:54.110 I haven't signed any fluff so I should imagine it's not looking too great. 09:54.110 --> 09:57.540 So we've got brown fur here and skin. 09:57.590 --> 09:58.280 Great. 09:58.430 --> 10:01.180 So let's go to the particle system down here. 10:01.180 --> 10:03.710 And I was actually assigned it brown fur. 10:03.710 --> 10:06.700 That was a bit of luck more than anything else. 10:06.860 --> 10:10.420 And we've got something that's starting to look quite nice. 10:10.430 --> 10:11.230 Okay brilliant. 10:11.300 --> 10:16.400 Now you see what I was saying earlier I can see that the skin colours come through on the years as well. 10:16.400 --> 10:20.880 So you can see I was saying earlier the hair is actually quite a light colour. 10:20.900 --> 10:26.330 However when it goes when there's a whole load of it like there is here and this rabbit unfortunately 10:26.330 --> 10:32.640 looks a bit like a brittle brush them home rather than a real rabbit. 10:32.690 --> 10:38.780 We'll get to making that a bit better soon but you can see even though the colour is this really light 10:38.780 --> 10:45.500 colour it comes out quite dark on a big bunch of it in fact if we go ahead and adjust this and make 10:45.500 --> 10:47.650 it even lighter. 10:50.360 --> 10:52.350 Bring it back down here so. 10:52.360 --> 10:53.590 Or an orange. 10:53.590 --> 10:57.000 Really really like that's almost like a light peach. 10:57.050 --> 11:00.270 I'm going to get into colour questions here and render that out again. 11:00.280 --> 11:04.830 We may end up with not quite as long as we thought it was here. 11:04.900 --> 11:08.850 So I'm just interested actually to see how this comes out. 11:12.260 --> 11:12.800 Wow. 11:12.830 --> 11:13.390 Okay. 11:13.400 --> 11:18.650 That's that's really interesting how that's come out how it's still dark brown in the middle and this 11:18.650 --> 11:25.130 lighter colour round edge so you can see there that cycle's is actually doing a very very good job at 11:25.130 --> 11:31.490 realizing well if you've got lots and lots of hair not very much light reaches in there or it gets absorbed 11:31.490 --> 11:37.040 so you end up with a darker colour even though you started with this quite light colour. 11:37.390 --> 11:37.900 Okay. 11:37.910 --> 11:40.590 Some other things that I can see just looking at here. 11:40.640 --> 11:43.400 We've got these we had highlights here. 11:43.400 --> 11:48.770 I'm going to see whether those disappear later on when we start going over this model in a bit more 11:48.770 --> 11:49.390 detail. 11:49.490 --> 11:52.540 But otherwise that's looking quite good at the moment. 11:52.610 --> 11:58.700 And if we have a quick look over here just finally in the properties window here down here we've got 11:58.700 --> 12:04.490 our brown fur and skin assigned but these are original materials that were made earlier are still here 12:04.490 --> 12:05.630 ready to use. 12:05.720 --> 12:09.020 But the moment I go and save my file and reopen it. 12:09.020 --> 12:15.410 So let's do that now just to re highlight that point and save my file and then um just go into open 12:15.410 --> 12:19.290 recent and open our fluffy bunny says opened it up again. 12:19.910 --> 12:23.760 And if we go back to the materials they are gone. 12:24.320 --> 12:28.970 So please share your bunny in the discussions are love to see your combination of colours. 12:28.970 --> 12:34.000 Have you gone wacky if you gone for a completely different style of bunny please share those in the 12:34.010 --> 12:37.330 discussions and I will see you guys in the next lecture.