WEBVTT 00:00.000 --> 00:01.049 Hey there, I'm Simon 00:01.061 --> 00:02.440 from the Blender Studio. 00:02.760 --> 00:04.179 In this video I'll walk you 00:04.191 --> 00:05.994 through creating this procedural 00:05.995 --> 00:07.383 fur setup using the new 00:07.395 --> 00:09.100 hair nodes in Blender 3.5. 00:09.400 --> 00:11.623 There is another, shorter video giving a 00:11.635 --> 00:13.980 quick overview of how to use the new nodes 00:13.981 --> 00:14.956 that you might want to 00:14.968 --> 00:16.180 check out if you haven't. 00:16.240 --> 00:18.748 In this video, I'll take a little bit more 00:18.749 --> 00:19.827 time and go over each 00:19.839 --> 00:21.240 step creating this setup. 00:21.460 --> 00:23.430 The file with this example is also 00:23.442 --> 00:25.423 available for download on Blender. 00:25.424 --> 00:26.835 org and it contains these 00:26.847 --> 00:28.840 four different animal fur setups. 00:28.841 --> 00:30.080 I recommend you check them 00:30.092 --> 00:31.920 out, they are very fun to play with. 00:32.420 --> 00:33.974 In this video, we'll focus on 00:33.986 --> 00:35.660 this one specifically though. 00:36.060 --> 00:37.933 It's inspired by our fuzzy friend, 00:37.945 --> 00:39.560 the long-haired highland cow. 00:40.000 --> 00:42.015 We'll be starting from scratch to recreate 00:42.027 --> 00:43.960 this setup, and you'll need little to no 00:43.961 --> 00:45.231 knowledge about how geometry 00:45.243 --> 00:46.800 nodes work to be able to follow. 00:47.300 --> 00:48.460 So, let's get started. 00:49.680 --> 00:51.661 I'm here in Blender 3.5 and just 00:51.673 --> 00:54.040 starting out from the default scene. 00:54.500 --> 00:56.123 Let's just get rid of all the 00:56.135 --> 00:57.770 objects and instead replace 00:57.771 --> 00:58.974 them with a plane that we're 00:58.986 --> 01:00.201 going to use as the bases. 01:01.800 --> 01:03.448 And for now, I just want to 01:03.460 --> 01:05.365 subdivide this plane a couple 01:05.366 --> 01:06.639 of times, so we have a little 01:06.651 --> 01:07.981 bit more detail on the mesh. 01:08.380 --> 01:11.109 And then, the easiest thing to add some 01:11.121 --> 01:14.000 hair on top of this plane as a base is to 01:14.001 --> 01:16.348 just run the quick fur operator, which 01:16.360 --> 01:18.961 you can find in the add menu under curves. 01:19.100 --> 01:21.559 And this now adds a new curves 01:21.571 --> 01:24.207 object, which is automatically 01:24.208 --> 01:25.444 parented to the active 01:25.456 --> 01:27.100 object, which is the plane. 01:27.760 --> 01:29.595 And also selecting the 01:29.607 --> 01:32.041 plane as the surface object 01:32.042 --> 01:33.589 and its active UV map as 01:33.601 --> 01:35.420 the UV map for the curves. 01:36.220 --> 01:38.062 This is quite important to make sure that 01:38.074 --> 01:39.840 the curves are attached to the surface. 01:40.800 --> 01:42.926 And now we can already go into sculpt 01:42.938 --> 01:45.300 mode and do some grooming on top of this. 01:50.150 --> 01:52.110 As you can see, there's already 01:52.122 --> 01:54.030 a procedural setup going on. 01:55.150 --> 01:57.208 If I go to the modifier panel, you 01:57.220 --> 01:59.350 can see that the quick fur operator 01:59.351 --> 02:00.434 already added a bunch 02:00.446 --> 02:02.010 of modifiers on top of this. 02:02.630 --> 02:04.938 If I disable all of them, you can see the 02:04.939 --> 02:06.579 original curves that you 02:06.591 --> 02:08.311 can actually sculpt on. 02:08.490 --> 02:11.160 And then there's a setup on top that adds 02:11.172 --> 02:13.790 more interpolated curves based on those. 02:14.390 --> 02:15.878 And then add some noise 02:15.890 --> 02:17.650 and frizz on top of that. 02:17.651 --> 02:19.830 The original curves that you can actually 02:19.831 --> 02:20.836 sculpt on are marked 02:20.848 --> 02:22.170 with this white overlay. 02:22.710 --> 02:23.985 One thing I want to do is 02:23.997 --> 02:25.850 scale the plane down a little bit. 02:25.851 --> 02:27.576 Let me go into edit mode 02:27.588 --> 02:29.686 and scale it by a factor of 02:29.687 --> 02:31.337 0.2 to get a more reasonable 02:31.349 --> 02:33.010 surface area to work with. 02:33.330 --> 02:34.681 And as you can see, as 02:34.693 --> 02:36.304 I'm scaling this around, 02:36.305 --> 02:37.528 the density of the hair 02:37.540 --> 02:38.990 does not actually change. 02:38.991 --> 02:40.727 So you get fewer hairs on 02:40.739 --> 02:42.977 the smaller surface, but there 02:42.978 --> 02:44.673 are also these strange 02:44.685 --> 02:47.090 stray hairs around this area. 02:47.091 --> 02:49.965 And that's because the actual curves, 02:49.977 --> 02:53.090 if I go into sculpt mode here as you can 02:53.091 --> 02:56.230 see, did not actually change with the mesh. 02:56.790 --> 02:57.965 The curves and the mesh 02:57.977 --> 02:59.370 are two separate objects. 02:59.890 --> 03:01.784 But now that the mesh changed, we'll 03:01.796 --> 03:04.010 have to update the position of the curves. 03:04.810 --> 03:07.750 We can do that in curve sculpt mode with 03:07.762 --> 03:10.931 the operator to snap to the formed surface. 03:11.090 --> 03:12.270 And there we go. 03:12.271 --> 03:14.219 Because each curve remembered 03:14.231 --> 03:16.190 its UV coordinate, they all 03:16.191 --> 03:17.595 snap to the point on the plane 03:17.607 --> 03:19.070 where they're supposed to be. 03:19.550 --> 03:20.969 Now let me just rotate this 03:20.981 --> 03:22.730 plane into a vertical position. 03:23.190 --> 03:25.035 And then let's do some very, 03:25.047 --> 03:26.970 very basic grooming to just 03:26.971 --> 03:28.182 angle these curves down 03:28.194 --> 03:29.790 a little bit on the surface. 03:31.190 --> 03:32.950 And make them just a little bit longer. 03:37.880 --> 03:39.914 And that is about as much grooming as we're 03:39.926 --> 03:41.740 actually going to do in this tutorial. 03:41.741 --> 03:44.029 Now, the main part, separate from this, 03:44.041 --> 03:46.340 is just going to be a procedural setup. 03:47.200 --> 03:48.422 Next up, let's take a closer 03:48.434 --> 03:49.580 look at these modifiers. 03:50.500 --> 03:52.333 The first one here is responsible to 03:52.345 --> 03:54.240 set the thickness of the hair curves. 03:55.340 --> 03:57.143 But as you can see, if I change anything, 03:57.155 --> 03:58.840 right now we're not seeing the result. 03:59.620 --> 04:01.025 To change that, we have to 04:01.037 --> 04:02.780 go to the render settings tab. 04:03.660 --> 04:05.805 And in the curves properties, 04:05.817 --> 04:07.900 change the shape to strip. 04:07.901 --> 04:10.305 And then we can also add some additional 04:10.317 --> 04:12.320 subdivision to get a nicer shape. 04:12.760 --> 04:15.130 And now you can see how this shape of 04:15.142 --> 04:17.900 the hair strands is a little bit more soft. 04:18.380 --> 04:20.459 And when we change the radius, you can see 04:20.471 --> 04:22.561 how this is actually having an effect now. 04:22.780 --> 04:24.308 Besides the radius, there's also 04:24.320 --> 04:25.860 an option to change the shape. 04:26.280 --> 04:29.450 The default of 0.5 means that it has 04:29.462 --> 04:33.160 100% of the width at the root of the hair. 04:34.120 --> 04:35.959 And then linearly 04:35.971 --> 04:39.020 falls off to 0 at the end. 04:39.460 --> 04:41.474 The factor of that you can also control 04:41.486 --> 04:43.360 with factor max and factor min here. 04:44.120 --> 04:45.251 But you can also change the 04:45.263 --> 04:47.040 interpolation with this shape parameter. 04:47.660 --> 04:48.953 If you increase the 04:48.965 --> 04:51.300 shape, it will fall off quicker. 04:52.960 --> 04:54.677 If you reduce it, it will 04:54.689 --> 04:56.280 fall off more slowly. 04:57.540 --> 04:59.971 And then if you go into the negatives, 04:59.983 --> 05:02.300 you will get the opposite direction. 05:03.480 --> 05:05.720 For now, let's just keep that at 0.5. 05:06.140 --> 05:08.152 The next modifier in here is called 05:08.164 --> 05:10.300 the interpolate hair curves modifier. 05:11.920 --> 05:14.297 This one is responsible to interpolate 05:14.309 --> 05:16.820 the existing guide curves that you have, 05:17.060 --> 05:19.180 which we can see in the overlay here. 05:19.720 --> 05:21.610 And create more to interpolate 05:21.622 --> 05:23.840 them all over the surface object. 05:23.841 --> 05:26.254 If I just crank up the density here to 05:26.266 --> 05:28.940 let's say 10,000, you can see how we get a 05:28.941 --> 05:31.053 lot more curves without actually 05:31.065 --> 05:33.520 adding more into the real geometry. 05:33.940 --> 05:36.247 For this modifier, it's important 05:36.259 --> 05:38.100 to set the surface object. 05:38.520 --> 05:40.207 Otherwise, the result is 05:40.219 --> 05:42.201 just empty and also the UV 05:42.202 --> 05:43.551 map so that the curves can 05:43.563 --> 05:45.080 be attached to the surface. 05:45.520 --> 05:47.374 In this case, the quick fur operator 05:47.386 --> 05:49.100 already took care of that for us. 05:49.520 --> 05:51.034 The next modifier that was 05:51.046 --> 05:53.160 already added is a noise modifier. 05:53.161 --> 05:54.588 To just distort the curves 05:54.600 --> 05:56.260 with a simple noise texture. 05:56.261 --> 05:57.940 We can crank up the 05:57.952 --> 06:00.800 distortion distance like this. 06:01.560 --> 06:03.389 Or we can change the scale of 06:03.401 --> 06:05.940 the texture to get a different result. 06:07.440 --> 06:08.613 Another modifier to add 06:08.625 --> 06:10.118 some variation that already 06:10.119 --> 06:11.157 has been added is the 06:11.169 --> 06:12.620 frizz hair curves modifier. 06:13.020 --> 06:14.594 It's a bit similar to the noise 06:14.606 --> 06:16.500 modifier as it adds some variation. 06:16.501 --> 06:18.787 But instead of using an actual noise 06:18.799 --> 06:21.160 texture that is mapped to the curves, 06:21.560 --> 06:23.161 it's just using a random value for 06:23.173 --> 06:24.740 each control point of the curves. 06:25.160 --> 06:26.720 And that makes everything very fuzzy. 06:27.540 --> 06:29.205 With the seed input, you can change 06:29.217 --> 06:30.940 between different random variations. 06:31.560 --> 06:32.902 The shape works the same as 06:32.914 --> 06:34.820 for the hair shape in the beginning. 06:35.180 --> 06:38.250 So the default of 0.5 means that we have an 06:38.251 --> 06:39.487 increasing amount of 06:39.499 --> 06:41.060 frizz along each curve. 06:41.300 --> 06:43.091 So if I crank that higher, we get 06:43.103 --> 06:44.960 less and less frizz up to the tip. 06:44.961 --> 06:46.786 And if I crank it lower, we'll 06:46.798 --> 06:48.880 get more along the entire curve. 06:49.300 --> 06:51.404 And if I go the opposite way of going 06:51.416 --> 06:53.700 into the negative values, you'll see how 06:53.701 --> 06:55.960 there's no frizz at the tip, but 06:55.972 --> 06:58.740 then stronger frizz around the roots. 06:59.660 --> 07:02.519 Same as for the noise node, 07:02.531 --> 07:05.720 there are also some toggles. 07:06.060 --> 07:07.318 There's for example the 07:07.330 --> 07:08.820 cumulative offset toggle. 07:09.260 --> 07:10.652 What this does is that the 07:10.664 --> 07:12.177 displacement node of every 07:12.178 --> 07:13.272 point is affecting the 07:13.284 --> 07:14.641 next one along the curve. 07:15.180 --> 07:16.589 So if I turn this off, 07:16.601 --> 07:18.152 the whole frizz effect 07:18.153 --> 07:19.443 is very random and 07:19.455 --> 07:21.481 uniform in all directions. 07:21.680 --> 07:23.041 But if I turn it on, you can see 07:23.053 --> 07:24.640 how it's a little bit more natural. 07:25.060 --> 07:26.318 And then there's another toggle 07:26.330 --> 07:27.600 to preserve the curve length. 07:27.920 --> 07:29.765 So that means when I increase this value 07:29.777 --> 07:31.680 instead of the curves just getting longer 07:31.681 --> 07:33.219 and longer, it preserves 07:33.231 --> 07:34.588 the length and they 07:34.589 --> 07:35.741 just start crumpling up 07:35.753 --> 07:37.120 without actually growing. 07:37.121 --> 07:39.537 And the last modifier that is added by 07:39.549 --> 07:42.040 default is the surface deform modifier, 07:42.380 --> 07:44.340 which takes care that the curves 07:44.352 --> 07:46.940 move as the surface object is deforming. 07:47.100 --> 07:49.339 Just keep in mind that changing the 07:49.351 --> 07:52.040 actual mesh in edit mode does not count as 07:52.041 --> 07:52.947 deforming as you're 07:52.959 --> 07:54.360 changing the original mesh. 07:54.361 --> 07:56.598 But if instead I add, for 07:56.610 --> 07:58.679 example, a shape key, 07:58.680 --> 08:00.460 let's just create a basic 08:00.472 --> 08:02.120 deformation for this. 08:03.740 --> 08:05.269 And then I have the shape key 08:05.281 --> 08:07.300 actually have an effect on the mesh. 08:07.800 --> 08:09.218 You can see how the curves 08:09.230 --> 08:10.660 are moving nicely along. 08:14.640 --> 08:16.139 For that to work is actually 08:16.151 --> 08:17.932 important to make sure that the 08:17.933 --> 08:19.660 surface deform modifier is 08:19.672 --> 08:21.880 always at the end of the stack. 08:21.881 --> 08:23.317 And also the surface 08:23.329 --> 08:25.140 rest position toggle is 08:25.141 --> 08:27.262 enabled in the interpolate 08:27.274 --> 08:29.161 hair curves modifier. 08:29.200 --> 08:30.600 So those are the basics. 08:31.040 --> 08:32.019 Now let's start with 08:32.031 --> 08:33.320 the actual custom setup. 08:33.840 --> 08:35.580 For now, let's disable the frizz to get 08:35.592 --> 08:37.300 a better picture of what is happening. 08:37.840 --> 08:40.652 Also, I want to change the viewport display 08:40.664 --> 08:43.360 color of the fur so we get a better read. 08:43.580 --> 08:44.901 Let's go for something like this. 08:44.980 --> 08:46.275 And then also in the 08:46.287 --> 08:48.181 display settings, I want to 08:48.182 --> 08:49.394 turn on shadowing and 08:49.406 --> 08:50.980 cavity in the world type. 08:50.981 --> 08:52.769 To get a realistic result, we're 08:52.781 --> 08:54.580 going to need a lot more hair. 08:54.900 --> 08:56.505 So in the interpolate hair 08:56.517 --> 08:58.321 curves modifier, let's turn 08:58.322 --> 08:59.758 the density to something 08:59.770 --> 09:01.700 really high, like one million. 09:03.660 --> 09:05.700 Now we got a very dense curve setup. 09:06.460 --> 09:08.513 The value of one million is 09:08.525 --> 09:10.820 the density per square unit. 09:12.100 --> 09:13.634 So what that means in 09:13.646 --> 09:16.370 Blender here, a unit like this will 09:16.371 --> 09:17.868 have a million of these curves 09:17.880 --> 09:19.440 spawned in the current setup. 09:19.441 --> 09:21.350 But because this plane is a lot 09:21.362 --> 09:23.840 smaller than one Blender unit squared, 09:24.540 --> 09:26.140 we don't actually have a million curves. 09:26.680 --> 09:27.972 One way to find out how 09:27.984 --> 09:29.514 many we actually have is, 09:29.515 --> 09:30.678 for example, to go to the 09:30.690 --> 09:31.960 geometry nodes workspace. 09:32.480 --> 09:34.156 And then with our object selected, 09:34.168 --> 09:36.000 you can see that we're dealing with a 09:36.001 --> 09:36.676 hundred and sixty 09:36.688 --> 09:37.820 thousand curves right now. 09:38.080 --> 09:39.855 Of course, that is not going to be super 09:39.867 --> 09:41.480 performant when we're working on it. 09:42.000 --> 09:44.148 So one thing that I want to do is decrease 09:44.160 --> 09:46.120 the amount that we see in the viewport 09:46.121 --> 09:47.289 while the rendering will 09:47.301 --> 09:48.580 still have this density. 09:48.581 --> 09:50.118 So for the viewport amount, 09:50.130 --> 09:52.080 let's just type in four percent. 09:52.280 --> 09:53.425 And this would make it a lot 09:53.437 --> 09:54.760 easier to work with the setup. 09:55.480 --> 09:57.184 So let's collapse the interpolation 09:57.196 --> 09:58.960 for now and just focus on the noise. 09:59.240 --> 10:00.555 The noise is the only thing that 10:00.567 --> 10:02.060 is deforming our curves right now. 10:02.340 --> 10:03.997 One thing that I want to do is make this 10:03.998 --> 10:04.807 pattern of displacement 10:04.819 --> 10:05.640 a little bit smaller. 10:05.860 --> 10:06.968 So let's crank up the 10:06.980 --> 10:08.580 scale to something like two. 10:09.160 --> 10:09.916 And to control the 10:09.928 --> 10:11.123 strength of this effect, I 10:11.124 --> 10:12.383 actually want to use a 10:12.395 --> 10:13.781 mask that I can paint. 10:13.820 --> 10:15.185 One way of doing this is 10:15.197 --> 10:16.860 to select the base surface. 10:16.861 --> 10:19.300 And on there we can create a vertex group. 10:20.480 --> 10:21.880 Let's call this one noise strength. 10:22.900 --> 10:24.700 That's just drawing something basic. 10:26.780 --> 10:30.044 And then in the modifier, we can click 10:30.056 --> 10:33.500 on this button here to change the factor 10:33.501 --> 10:35.032 input instead of a single 10:35.044 --> 10:37.020 value into an attribute input. 10:38.100 --> 10:40.291 And here we can select the noise 10:40.303 --> 10:42.920 strength from the plane as an input. 10:43.700 --> 10:45.221 And if we go back to weight 10:45.233 --> 10:46.880 paint mode on the plane, we 10:46.881 --> 10:48.029 can see how now we can 10:48.041 --> 10:49.780 actually paint in the strength. 10:52.520 --> 10:53.657 Now that we have some 10:53.669 --> 10:55.255 variation in the base shape 10:55.256 --> 10:56.406 of the groom, let's add 10:56.418 --> 10:57.781 some more effects on top. 10:58.500 --> 10:59.714 For that I want to actually 10:59.726 --> 11:01.179 start layering our own effects 11:01.180 --> 11:02.505 on top of what the quick 11:02.517 --> 11:04.300 fur modifier added by default. 11:04.640 --> 11:05.670 To do that, we have to 11:05.682 --> 11:06.960 open a new editor window. 11:07.880 --> 11:09.080 Select the asset browser. 11:09.081 --> 11:11.503 And there, in the essentials 11:11.515 --> 11:13.515 library, you can find 11:13.516 --> 11:15.311 all of the hair modifiers 11:15.323 --> 11:17.420 that ship with blender 3.5. 11:17.680 --> 11:18.935 To get a better overview, let's 11:18.947 --> 11:20.460 check out the different categories. 11:21.220 --> 11:23.500 There are general deformation nodes. 11:23.980 --> 11:26.160 Generation to add more curves. 11:26.760 --> 11:28.190 Guide nodes to enable a 11:28.202 --> 11:30.020 guide curve based workflow. 11:30.560 --> 11:32.235 Read nodes to give you information 11:32.247 --> 11:34.320 about the curves to use in the node setup. 11:34.820 --> 11:36.300 General utility nodes. 11:36.301 --> 11:38.228 And then in the right category, 11:38.240 --> 11:40.680 just the set hair curve profile node. 11:41.100 --> 11:42.407 Some of these, like this 11:42.419 --> 11:43.792 one, we've already used 11:43.793 --> 11:44.860 because they were added 11:44.872 --> 11:46.420 by the quick fur automatically. 11:46.760 --> 11:48.045 But now I want to add a 11:48.057 --> 11:49.580 new one to curl the hair. 11:50.640 --> 11:51.605 This one can be found 11:51.617 --> 11:52.780 in the guides category. 11:53.500 --> 11:54.514 But you can also just 11:54.526 --> 11:56.040 type in curl into the search. 11:56.660 --> 11:58.494 To add it to the curve objects 11:58.506 --> 12:00.476 modifier stack, you can simply 12:00.477 --> 12:01.754 drag it into the viewport 12:01.766 --> 12:03.520 and let go on top of the object. 12:03.521 --> 12:04.840 And there it is. 12:04.841 --> 12:06.880 It's already added to the end of the stack. 12:07.200 --> 12:08.208 But let me just move 12:08.220 --> 12:09.700 this right after the noise. 12:10.320 --> 12:11.676 Of course, the default settings 12:11.688 --> 12:13.100 are not quite fitting exactly. 12:13.460 --> 12:14.647 Let's change the radius to 12:14.659 --> 12:16.180 something like two centimeters. 12:16.840 --> 12:17.907 And let's also crank up 12:17.919 --> 12:19.280 the frequency a little bit. 12:20.040 --> 12:21.600 And there you can see what's happening. 12:22.300 --> 12:24.940 One thing I want to change is to crank 12:24.952 --> 12:27.740 up the curl start all the way up to one. 12:28.160 --> 12:28.956 Because I just want 12:28.968 --> 12:30.200 them to curl up to the tip. 12:30.201 --> 12:32.521 And because I want these curls to clump 12:32.533 --> 12:35.040 up a little bit more at the tip, I'll just 12:35.041 --> 12:36.467 change the factor end 12:36.479 --> 12:38.260 to something much lower. 12:38.780 --> 12:41.520 To get some more variation here, I'll 12:41.532 --> 12:44.501 also crank up the random offset to 0 .5. 12:44.780 --> 12:45.931 And for now, that's about what 12:45.943 --> 12:47.300 I want to do with these settings. 12:47.660 --> 12:49.933 I do want to go into detail into something 12:49.934 --> 12:51.456 else, though, which is 12:51.468 --> 12:53.281 the guide hair workflow. 12:53.520 --> 12:55.588 What is different about the curls compared 12:55.600 --> 12:57.680 to the modifiers that we already looked at 12:57.681 --> 13:00.653 before is that they kind of clump together 13:00.665 --> 13:03.580 a bunch of hairs into one singular shape. 13:03.840 --> 13:05.880 And that is based on the guide curves. 13:06.400 --> 13:07.635 Right now, by default, 13:07.647 --> 13:09.007 these guide curves are 13:09.008 --> 13:10.237 exactly the ones that you 13:10.249 --> 13:11.540 can edit in sculpt mode. 13:11.860 --> 13:13.955 If I take a look here, the 13:13.967 --> 13:16.317 overlay of the guide curves 13:16.318 --> 13:17.753 matches exactly the curls 13:17.765 --> 13:19.560 that are resulting from that. 13:19.940 --> 13:21.828 And if I start moving these 13:21.840 --> 13:23.740 around, you can see I can 13:23.741 --> 13:25.229 also shift the pattern of 13:25.241 --> 13:26.920 how the curls are created. 13:27.420 --> 13:29.242 And if I delete a bunch 13:29.254 --> 13:31.088 of them, you can even 13:31.089 --> 13:33.941 see how it removes these guides entirely. 13:34.740 --> 13:36.097 But of course, that doesn't 13:36.109 --> 13:37.680 remove the individual curves. 13:38.080 --> 13:39.200 The curves are still there. 13:39.440 --> 13:41.014 They're just mapped to the 13:41.026 --> 13:43.160 closest guide in their proximity. 13:43.680 --> 13:45.947 So this is one way to actually control very 13:45.948 --> 13:47.227 precisely how you want 13:47.239 --> 13:48.941 these clumps to be created. 13:49.520 --> 13:50.700 But in this case, I don't 13:50.712 --> 13:52.000 care about that too much. 13:52.040 --> 13:53.561 I just want a procedural setup 13:53.573 --> 13:55.260 that has some randomness to it. 13:55.261 --> 13:59.022 So what I can do to create this mapping of 13:59.034 --> 14:02.720 curves to guide curves more procedural is 14:02.721 --> 14:04.889 to just turn off this toggle to 14:04.901 --> 14:06.940 use the existing guide map. 14:07.760 --> 14:09.305 Now these clumps of hair are not 14:09.317 --> 14:11.360 matching what I do in the groom anymore. 14:12.140 --> 14:13.686 Instead, they're now based on 14:13.698 --> 14:15.900 these inputs here in the curl modifier. 14:16.380 --> 14:17.905 The guide distance gives you an 14:17.917 --> 14:19.800 average distance between two guides. 14:20.160 --> 14:21.460 So right now, that's 10 centimeters. 14:21.461 --> 14:23.274 So in our case, let's crank this a 14:23.286 --> 14:25.320 little bit lower to something like one 14:25.321 --> 14:26.906 centimeter, which gives us 14:26.918 --> 14:28.760 much smaller clumps of hair. 14:29.320 --> 14:31.130 And then on top of that, I want 14:31.142 --> 14:33.200 to also use the guide mask input. 14:33.500 --> 14:35.999 The mask input will randomly remove 14:36.011 --> 14:38.800 some of the guides based on the number. 14:39.380 --> 14:40.860 On one, nothing is removed. 14:41.440 --> 14:43.053 On zero, everything is removed, 14:43.065 --> 14:44.900 which just creates one big clump. 14:45.460 --> 14:48.040 But let's put this to something like 0.2. 14:48.041 --> 14:49.313 The result of this is 14:49.325 --> 14:51.037 kind of similar as keeping 14:51.038 --> 14:52.238 this on one and then just 14:52.250 --> 14:53.461 increasing this number. 14:54.220 --> 14:55.505 But the difference is 14:55.517 --> 14:56.999 that doing it this way 14:57.000 --> 14:58.509 looks a little bit more 14:58.521 --> 15:00.241 random and less uniform. 15:00.820 --> 15:02.920 So now we have a good natural base setup. 15:03.320 --> 15:04.920 Let's start adding more detail to it. 15:05.200 --> 15:06.576 The first thing I want to 15:06.588 --> 15:08.086 do is to enable the frizz 15:08.087 --> 15:09.087 again, but not the way 15:09.099 --> 15:10.480 that it is set up right now. 15:10.660 --> 15:12.214 Currently, the effect is the 15:12.226 --> 15:13.848 strongest at the tip, which 15:13.849 --> 15:15.057 will destroy the shape that 15:15.069 --> 15:16.560 we just created with the curls. 15:16.561 --> 15:18.834 So instead, I want to go for a negative 15:18.846 --> 15:20.960 shape, which will give us a stronger 15:20.961 --> 15:22.329 effect at the root and 15:22.341 --> 15:24.160 leave the tips as they are. 15:24.640 --> 15:26.970 Also, let's reduce the amount by changing 15:26.971 --> 15:28.083 the distance to something 15:28.095 --> 15:29.040 like 2 millimeters. 15:29.440 --> 15:30.573 And that just adds some 15:30.585 --> 15:31.780 more subtle variation. 15:32.540 --> 15:33.445 Next, I want to add 15:33.457 --> 15:34.760 some additional clumping. 15:35.260 --> 15:36.452 The curls already have 15:36.464 --> 15:38.160 some sort of clumping effect. 15:38.600 --> 15:41.185 But on top of this, I want to add some 15:41.197 --> 15:43.860 sub -clumping on a more granular level. 15:43.861 --> 15:46.015 So in the guides category, 15:46.027 --> 15:48.610 I'll just take the clump hair 15:48.611 --> 15:49.934 curves node and drag the 15:49.946 --> 15:51.560 assets on top of the groom. 15:52.060 --> 15:53.010 Let's make sure that it's 15:53.022 --> 15:54.100 before the surface deform. 15:54.880 --> 15:56.745 And you can see that by 15:56.757 --> 15:59.123 default, it takes the exact 15:59.124 --> 16:00.439 same guide curves that 16:00.451 --> 16:02.140 are selected by the curls. 16:02.560 --> 16:03.728 In this case, that's not 16:03.740 --> 16:04.821 what I want, because 16:04.822 --> 16:05.770 I want to add smaller 16:05.782 --> 16:06.880 clumps on top of that. 16:06.881 --> 16:08.943 So I just turn off the existing 16:08.955 --> 16:10.761 guide map toggle and then 16:10.762 --> 16:12.344 change the guide distance 16:12.356 --> 16:14.460 to something like 1 millimeter. 16:15.020 --> 16:16.627 That creates very small clumps 16:16.639 --> 16:18.420 on top of what we already have. 16:18.720 --> 16:21.504 And then also I want to reduce the guide 16:21.516 --> 16:24.380 mask to 0.1, which will essentially throw 16:24.381 --> 16:26.027 away 90% of the guides in 16:26.039 --> 16:27.896 the selection, which makes 16:27.897 --> 16:28.922 it look more natural and 16:28.934 --> 16:30.100 a little bit more random. 16:30.380 --> 16:31.289 Of course, you can always 16:31.301 --> 16:32.480 play around with these values. 16:32.481 --> 16:33.610 I also want to make 16:33.622 --> 16:35.244 these clumps a little bit 16:35.245 --> 16:36.791 stronger so that they start 16:36.803 --> 16:38.361 earlier towards the root. 16:38.680 --> 16:40.300 For that, I can change the shape. 16:40.660 --> 16:42.518 If I reduce this value, I get 16:42.530 --> 16:44.400 a stronger clumping effect. 16:45.760 --> 16:47.503 Now, before we continue adding more 16:47.515 --> 16:49.660 detail to this, I actually want to see this 16:49.661 --> 16:51.404 rendered, because remember, 16:51.416 --> 16:54.080 this is not the full density of curves. 16:54.560 --> 16:58.014 If I put this viewport amount back to 100%, 16:58.015 --> 16:59.411 we see the entirety of 16:59.423 --> 17:00.960 this very thick groom. 17:00.961 --> 17:03.310 So something we definitely have to reduce 17:03.322 --> 17:05.740 is the thickness of the individual curves. 17:06.260 --> 17:08.227 Let's go for 0.2 millimeters, and that 17:08.239 --> 17:10.420 looks a little bit better for the density. 17:10.800 --> 17:12.992 Okay, for now, let's turn this back to 4% 17:13.004 --> 17:15.260 and add a little bit of a rendering setup. 17:17.220 --> 17:20.016 Let's add in a camera object 17:20.028 --> 17:24.040 that just looks straight at the groom. 17:27.340 --> 17:29.144 Change the resolution to be 17:29.156 --> 17:31.780 square format, just the focal length. 17:31.781 --> 17:33.008 And now let's just add some 17:33.020 --> 17:34.580 lights in a separate collection. 17:36.560 --> 17:37.739 I want to have just a 17:37.751 --> 17:39.340 very basic lighting setup. 17:41.260 --> 17:43.648 Add a fill light from the top, 17:43.660 --> 17:46.460 with a little bit of a warm tone. 17:50.380 --> 17:52.988 Then a relatively small key light, 17:53.000 --> 17:55.620 coming a little bit from the side. 17:57.880 --> 18:00.720 And a rim light from the other side, 18:09.260 --> 18:10.580 with a little bit of a cold tone. 18:12.400 --> 18:13.389 And for the world, 18:13.401 --> 18:14.903 let's just crank down the 18:14.904 --> 18:16.272 color a little bit and 18:16.284 --> 18:18.041 push it more towards blue. 18:18.620 --> 18:19.561 And we can still tweak 18:19.573 --> 18:20.785 all of that later, but for 18:20.786 --> 18:21.800 now, let's go ahead and 18:21.812 --> 18:23.061 do a simple shading setup. 18:23.480 --> 18:24.702 For the shader, we do 18:24.714 --> 18:26.124 want to use nodes, and 18:26.125 --> 18:27.693 we're just going to use 18:27.705 --> 18:29.560 the principled hair BSDF. 18:29.561 --> 18:30.951 That works only for cycles, 18:30.963 --> 18:32.520 so if you want to use Eevee, 18:32.521 --> 18:33.950 make sure to just use the 18:33.962 --> 18:35.460 regular principled BSDF. 18:35.940 --> 18:36.968 I want to have some more 18:36.980 --> 18:38.410 precise control over the color, 18:38.411 --> 18:39.570 so I'm just going to keep 18:39.582 --> 18:40.800 this as direct coloring. 18:41.260 --> 18:43.088 And then we're going to 18:43.100 --> 18:45.100 use the curve info node 18:45.101 --> 18:46.434 to be able to use this 18:46.446 --> 18:48.220 information for the shader. 18:48.340 --> 18:50.159 I'm going to use the intercept to 18:50.171 --> 18:52.380 get a gradient from the root to the tip, 18:52.920 --> 18:54.081 and plug that into the 18:54.093 --> 18:55.640 factor input of a mix node. 18:56.160 --> 18:57.560 Set that to color. 18:59.120 --> 19:01.419 And then there I'm going to 19:01.431 --> 19:04.084 select a darker color for the 19:04.164 --> 19:06.083 root, and a brighter, more 19:06.095 --> 19:08.620 reddish color for along the tip. 19:09.620 --> 19:11.404 To get a better idea of the lighting, 19:11.416 --> 19:13.400 let's give the surface object a shader as 19:13.401 --> 19:15.826 well, where we turn off the specular 19:15.838 --> 19:17.880 and just crank down the color. 19:18.400 --> 19:19.580 There we go, it looks a lot better. 19:19.581 --> 19:21.964 Also turn on the denoising 19:21.976 --> 19:24.094 for the viewport, and 19:24.095 --> 19:25.581 enable the normal input 19:25.593 --> 19:27.221 to get a better result. 19:27.960 --> 19:29.340 And that looks already not so bad. 19:30.220 --> 19:31.880 Now let's give this an actual render. 19:33.080 --> 19:34.121 Alright, so this doesn't even 19:34.133 --> 19:35.476 have to render all the way through. 19:35.500 --> 19:37.560 We can already identify a couple of issues. 19:38.700 --> 19:40.427 So one thing is that these 19:40.439 --> 19:42.980 clumps are still very, very uniform. 19:43.620 --> 19:44.646 So we want to add some 19:44.658 --> 19:46.073 additional detail like stray 19:46.074 --> 19:46.975 hairs that are going 19:46.987 --> 19:48.220 between different clumps. 19:48.221 --> 19:49.228 And then also the 19:49.240 --> 19:51.097 individual hairs have all the 19:51.098 --> 19:52.421 same length, which results 19:52.433 --> 19:53.820 in these kinds of shapes. 19:54.460 --> 19:55.730 There can also be some 19:55.742 --> 19:57.665 variation in the shader, and it 19:57.666 --> 19:59.246 would also be nice to vary 19:59.258 --> 20:01.400 up the curling a little bit more. 20:01.660 --> 20:02.900 So let's get to work. 20:03.360 --> 20:04.811 First up, let's just work a little 20:04.823 --> 20:06.160 bit more in this shading setup. 20:06.740 --> 20:09.545 One thing that I want to do is use a noise 20:09.546 --> 20:10.786 texture to create some 20:10.798 --> 20:12.220 variation in the color. 20:12.221 --> 20:14.560 Let's just add a noise texture node. 20:15.540 --> 20:17.706 And for the vector, instead 20:17.718 --> 20:19.896 of leaving the input open 20:19.897 --> 20:21.447 as it is, I'm going to use 20:21.459 --> 20:23.081 the attribute input node. 20:23.480 --> 20:26.136 And there what I type in is surface 20:26.148 --> 20:28.520 UV coordinate with underscores. 20:28.760 --> 20:31.252 And if we just take a look at that, you 20:31.264 --> 20:33.580 can see how that nicely gives us the 20:33.581 --> 20:35.461 UV information of the surface 20:35.473 --> 20:37.300 for each individual curve. 20:37.301 --> 20:39.351 You can use this, for example, also 20:39.363 --> 20:41.540 to do texture painting on the surface 20:41.541 --> 20:44.426 and then use this attribute as the 20:44.438 --> 20:47.500 vector input for your image texture. 20:47.840 --> 20:48.798 But instead of doing 20:48.810 --> 20:50.314 actual image texture painting 20:50.315 --> 20:51.487 here, I simply just want 20:51.499 --> 20:52.881 to use this noise texture. 20:53.360 --> 20:55.696 Let's change the parameters a little bit to 20:55.697 --> 20:56.864 crank up the scale 20:56.876 --> 20:58.841 and the detail a little bit. 21:00.140 --> 21:02.040 And then use another mix 21:02.052 --> 21:04.840 node, set this one to soft light. 21:06.320 --> 21:09.295 And then use a color ramp to map 21:09.307 --> 21:13.040 the variation that we want to include. 21:14.960 --> 21:17.320 Let's play with the colors a little bit. 21:17.860 --> 21:18.999 And that creates a little 21:19.011 --> 21:20.300 bit more variation for us. 21:22.220 --> 21:23.662 On top of that, we can 21:23.674 --> 21:25.260 duplicate this node to 21:25.261 --> 21:26.502 also add some variation 21:26.514 --> 21:28.040 for each individual curve. 21:28.260 --> 21:30.520 And that results in a color map like this. 21:30.521 --> 21:33.944 And then for the shader node itself, we can 21:33.945 --> 21:35.691 also add some randomization 21:35.703 --> 21:36.940 to the roughness. 21:37.280 --> 21:38.607 And then let's tweak the 21:38.619 --> 21:40.236 roughness values themselves 21:40.237 --> 21:41.467 a little bit also to 21:41.479 --> 21:43.280 increase that a little bit. 21:43.620 --> 21:44.416 That makes everything 21:44.428 --> 21:45.620 look a little bit more fuzzy. 21:46.300 --> 21:47.224 So let's get into more 21:47.236 --> 21:48.300 detail with this setup. 21:49.000 --> 21:50.351 One thing that I mentioned 21:50.363 --> 21:51.517 I wanted to do is to 21:51.518 --> 21:52.495 randomize the length 21:52.507 --> 21:54.040 of these curves a little bit. 21:54.220 --> 21:55.412 For that, I can use the 21:55.424 --> 21:56.680 trim hair curves node. 21:56.681 --> 21:58.660 Let's just drag it on top. 21:59.140 --> 22:00.298 And by default it creates 22:00.310 --> 22:01.480 a little bit of a mess. 22:01.780 --> 22:03.511 Because what it does is that it 22:03.523 --> 22:05.660 trims the hair to a specific length. 22:06.080 --> 22:07.740 Which right now it's set to 1 meter. 22:08.100 --> 22:09.600 I don't want to do this here though. 22:09.860 --> 22:12.100 So let's turn off replace length. 22:12.500 --> 22:13.533 And then by default it 22:13.545 --> 22:14.780 doesn't change anything. 22:15.600 --> 22:17.051 But what I want to add 22:17.063 --> 22:18.660 is some random offset. 22:19.020 --> 22:20.591 So let's randomize the length 22:20.603 --> 22:22.460 by something like 5 millimeters. 22:22.960 --> 22:23.952 Here that doesn't have 22:23.964 --> 22:25.060 a very obvious result. 22:25.061 --> 22:27.880 But when we crank this back to 100 percent. 22:28.280 --> 22:29.251 You can see that it makes 22:29.263 --> 22:30.640 the tips a little bit more fuzzy. 22:31.140 --> 22:33.205 Another thing I want to do is to at 22:33.217 --> 22:35.120 the very end add some variation. 22:35.580 --> 22:37.005 By rotating the curves 22:37.017 --> 22:38.520 individually as well. 22:38.740 --> 22:40.500 You can change the random offset here. 22:41.000 --> 22:42.223 And you can see how it makes 22:42.235 --> 22:44.000 the ends just a little bit more fuzzy. 22:44.460 --> 22:45.204 I want this effect to 22:45.216 --> 22:46.116 be quite subtle though. 22:46.140 --> 22:47.565 So let's put this to a 22:47.577 --> 22:49.340 low value like 5 degrees. 22:49.660 --> 22:51.157 And also let's make sure to move 22:51.169 --> 22:52.960 the surface to form back to the end. 22:52.961 --> 22:54.614 Some of these effects we don't 22:54.626 --> 22:56.680 really need to see in the viewport. 22:56.880 --> 22:58.464 Because they're only really important 22:58.476 --> 23:00.240 for the render resolution of the density. 23:00.420 --> 23:01.135 So we can just turn 23:01.147 --> 23:02.180 them off of the viewport. 23:02.480 --> 23:03.473 And have a little bit of a 23:03.485 --> 23:04.800 benefit in terms of performance. 23:05.840 --> 23:07.100 If we just go through here. 23:07.500 --> 23:09.785 We can see which ones are really important 23:09.797 --> 23:11.720 and change the shape significantly. 23:12.200 --> 23:13.907 So far for this setup we've only 23:13.919 --> 23:15.960 been focusing on the modifier stack. 23:16.420 --> 23:17.140 And we've already 23:17.152 --> 23:18.400 gotten quite a nice result. 23:18.401 --> 23:20.543 But to really embrace the true 23:20.555 --> 23:23.140 power of this new hair node setup. 23:23.240 --> 23:24.544 We can actually move 23:24.556 --> 23:26.200 this to geometry nodes. 23:26.520 --> 23:27.631 And use all the other 23:27.643 --> 23:29.300 nodes in combination with it. 23:29.480 --> 23:30.351 That doesn't have to be 23:30.363 --> 23:31.400 super complicated though. 23:31.500 --> 23:32.939 Let me show you a little bit how you 23:32.951 --> 23:34.480 can take this setup to the next level. 23:34.860 --> 23:35.929 Without knowing all too much 23:35.941 --> 23:37.100 about geometry nodes at all. 23:37.340 --> 23:38.496 Let's first move to the 23:38.508 --> 23:39.880 geometry nodes workspace. 23:40.560 --> 23:41.708 And right now you don't really 23:41.720 --> 23:42.880 need the spreadsheet editor. 23:43.040 --> 23:43.944 So let's instead turn 23:43.956 --> 23:45.220 this into an asset browser. 23:45.221 --> 23:48.380 And here you can see in the node editor. 23:48.580 --> 23:49.955 How all of these modifiers 23:49.967 --> 23:51.620 that we've been working with. 23:51.840 --> 23:53.386 All have their own node tree 23:53.398 --> 23:55.400 representation in the node editor. 23:55.800 --> 23:57.520 And as I'm going through these. 23:57.780 --> 23:59.308 You might be thinking that these look 23:59.320 --> 24:00.900 a little bit daunting and complicated. 24:01.240 --> 24:02.080 But don't worry. 24:02.160 --> 24:04.280 You don't have to go into these setups. 24:04.480 --> 24:07.140 And understand what is going on at all. 24:07.280 --> 24:09.389 The way to use these in geometry 24:09.401 --> 24:11.720 nodes for your grooming workflow. 24:11.721 --> 24:14.011 Is rather to use these setups as a 24:14.023 --> 24:16.720 single node in a higher level node tree. 24:17.100 --> 24:18.380 Let me show you what that means. 24:18.740 --> 24:20.061 For example, let's go back 24:20.073 --> 24:21.560 to the frizz that we added. 24:22.000 --> 24:23.980 I want to add some variation 24:23.992 --> 24:26.340 and randomization to the input. 24:26.720 --> 24:28.461 So that not every single curve 24:28.473 --> 24:30.460 gets the same strength of frizz. 24:30.700 --> 24:32.480 And the easiest way to do that. 24:32.720 --> 24:34.180 Is to do it in geometry nodes. 24:34.540 --> 24:35.725 But rather than going 24:35.737 --> 24:37.220 inside of the node tree. 24:37.440 --> 24:38.476 That makes up the 24:38.488 --> 24:40.400 logic of this frizz modifier. 24:40.401 --> 24:42.865 I just want to make a simple geometry node 24:42.877 --> 24:45.180 setup to plug it into the factory here. 24:45.181 --> 24:47.240 And the easiest way to do that. 24:47.440 --> 24:48.848 Is to use an operator 24:48.860 --> 24:50.820 that is new in blender 3.5. 24:51.060 --> 24:52.900 Which you can find in this menu. 24:53.140 --> 24:54.780 And it is called move to nodes. 24:55.120 --> 24:57.140 So when I click and execute that operator. 24:57.740 --> 25:00.200 It creates an entirely new node tree. 25:01.000 --> 25:03.336 Which is just the node version of the 25:03.348 --> 25:05.820 frizz modifier that we had just before. 25:06.320 --> 25:07.604 So effectively nothing 25:07.616 --> 25:09.500 changed during this operation. 25:09.501 --> 25:11.420 It still looks the exact same. 25:11.820 --> 25:13.512 Because all the values that we put 25:13.524 --> 25:15.520 in here are still preserved in the node. 25:16.080 --> 25:17.471 But now we are able to 25:17.483 --> 25:19.780 incorporate this into a node tree. 25:20.380 --> 25:22.305 So now I can just mute this node 25:22.317 --> 25:24.980 individually to turn off and on the frizz. 25:25.160 --> 25:26.763 And more importantly I 25:26.775 --> 25:28.683 can drive all the inputs 25:28.684 --> 25:31.440 of this node individually with node setups. 25:32.020 --> 25:33.600 For the factor for example now. 25:33.840 --> 25:35.720 I can use a random value node. 25:37.200 --> 25:40.193 And right now this gives me a random value 25:40.205 --> 25:43.000 for every single point of these curves. 25:43.600 --> 25:45.077 What I want instead is a 25:45.089 --> 25:46.640 random value per curve. 25:47.120 --> 25:49.823 To get that I can simply change 25:49.835 --> 25:52.900 the ID input to use the curve ID. 25:53.940 --> 25:54.885 This node here the 25:54.897 --> 25:56.386 curve info is also part of 25:56.387 --> 25:57.917 the essentials library 25:57.929 --> 25:59.541 in the read category. 25:59.820 --> 26:00.983 I just press control H to 26:00.995 --> 26:02.500 hide the inputs we don't need. 26:02.760 --> 26:03.540 And there we go. 26:03.541 --> 26:04.860 Now we have a different 26:04.872 --> 26:06.840 random strength for every curve. 26:07.380 --> 26:08.603 Now let's change a little bit 26:08.615 --> 26:10.020 the range of this random value. 26:10.700 --> 26:13.245 Rather than just using these two parameters 26:13.257 --> 26:15.581 I want to instead use a map range node. 26:17.040 --> 26:18.322 That gives me more settings as 26:18.334 --> 26:20.060 now I can change the mapping entirely. 26:20.140 --> 26:22.760 Let's put the from min value to 0.8. 26:22.960 --> 26:24.912 And that essentially means that 80% of 26:24.924 --> 26:27.040 the curves will end up with a value of 0. 26:27.100 --> 26:28.188 So only a few of them 26:28.200 --> 26:29.720 actually receive the frizz. 26:29.820 --> 26:31.062 Let's turn the distance up a 26:31.074 --> 26:32.820 little bit to see more of the effect. 26:32.821 --> 26:35.268 And now if I mute this connection 26:35.280 --> 26:38.100 you can see the difference this makes. 26:38.380 --> 26:39.860 It really tones down the effect. 26:40.200 --> 26:41.694 If you are more comfortable 26:41.706 --> 26:43.044 with that you can also 26:43.045 --> 26:44.451 use a color ramp instead 26:44.463 --> 26:45.881 of the map range node. 26:45.920 --> 26:47.173 That way it's a little bit easier 26:47.185 --> 26:48.116 to see what's happening. 26:48.140 --> 26:49.720 The equivalent of what I just 26:49.732 --> 26:51.324 did with the map range node 26:51.325 --> 26:53.214 is essentially putting this 26:53.226 --> 26:55.480 slider to the position of 0.8. 26:56.280 --> 26:58.678 You can also get a preview of what this 26:58.690 --> 27:01.100 is doing by holding down shift control, 27:01.101 --> 27:02.332 clicking on the group input 27:02.344 --> 27:03.540 and then the color ramp. 27:04.500 --> 27:05.349 And then you can see 27:05.361 --> 27:06.480 the effect of this mask. 27:07.220 --> 27:08.013 And how it looks like 27:08.025 --> 27:09.060 when I change the inputs. 27:09.720 --> 27:11.410 So now that we know how to properly 27:11.422 --> 27:13.360 add more flexible control to the inputs, 27:13.640 --> 27:14.588 let's keep doing that to 27:14.600 --> 27:15.920 some of the other ones as well. 27:16.120 --> 27:17.547 For example, one of the most 27:17.559 --> 27:19.460 important modifiers here, the curl. 27:20.020 --> 27:21.398 Again, this setup looks 27:21.410 --> 27:23.345 quite complicated, but instead 27:23.346 --> 27:24.692 we're just going to focus on 27:24.704 --> 27:26.160 using this as a single node. 27:26.440 --> 27:28.420 So let's move this to another node tree. 27:28.421 --> 27:29.913 And then there it is, the node 27:29.925 --> 27:32.080 representation of the modifier we've been 27:32.081 --> 27:33.944 working with, where we can change all 27:33.956 --> 27:35.880 the inputs based on a node system now. 27:36.260 --> 27:37.778 First off, let's do a similar thing 27:37.790 --> 27:39.320 to what we just did with the frizz, 27:39.680 --> 27:42.957 which is adding a random value input to 27:42.969 --> 27:46.340 the factor and base that on the curve ID 27:46.341 --> 27:48.381 to make sure that we get a different 27:48.393 --> 27:50.500 value per curve instead of per point. 27:51.920 --> 27:53.985 And then let's add a ramp again, which 27:53.997 --> 27:56.341 I'm going to adjust to something like this. 27:57.160 --> 27:58.384 And you can see how that 27:58.396 --> 27:59.736 adds some more variation 27:59.737 --> 28:01.080 to the setup compared 28:01.092 --> 28:02.641 to what it was before. 28:02.980 --> 28:05.241 Another thing that I want to do is add some 28:05.253 --> 28:07.320 variation to the frequency of the curl. 28:07.760 --> 28:09.125 Quick reminder, this is what it 28:09.137 --> 28:10.780 looks like when I change the value. 28:11.240 --> 28:14.084 But what I want to do here is to actually 28:14.096 --> 28:16.680 change the frequency along the curve, 28:16.920 --> 28:18.800 so that at the base it's 28:18.812 --> 28:20.704 a lot smoother and the 28:20.705 --> 28:21.998 curl cranks up its 28:22.010 --> 28:24.040 frequency towards the tip. 28:24.041 --> 28:26.279 To do that, let's just add 28:26.291 --> 28:28.800 in a spline parameter node. 28:29.640 --> 28:32.080 So let's take a look at this factor input. 28:32.500 --> 28:34.192 That gives us a nice factor that 28:34.204 --> 28:36.120 goes from 0 to 1 along the spline. 28:36.420 --> 28:38.528 And then when I connect this to a map 28:38.540 --> 28:40.940 range node and plug it into the frequency, 28:41.460 --> 28:43.038 you can see how now we 28:43.050 --> 28:45.001 can control the frequency 28:45.002 --> 28:47.580 independently at the root and at the tip. 28:47.780 --> 28:49.583 So if I put both to 2, that's 28:49.595 --> 28:51.660 essentially what we had before. 28:51.661 --> 28:54.099 But if I lower it for the root, gives 28:54.111 --> 28:56.560 us a softer falloff at the beginning. 28:56.880 --> 28:58.744 And if I then increase it at the tip, that 28:58.745 --> 28:59.975 gives me exactly the 28:59.987 --> 29:01.601 result that I wanted to. 29:01.760 --> 29:02.810 This effect adds some 29:02.822 --> 29:04.440 overall interest to the shape. 29:04.780 --> 29:07.048 And it's also a little bit more realistic, 29:07.060 --> 29:09.340 as due to gravity, there's a lot more pull 29:09.341 --> 29:10.703 at the roots of the hair 29:10.715 --> 29:12.260 than there is at the tip. 29:12.760 --> 29:13.975 Let's again look at the 29:13.987 --> 29:15.800 comparison by muting this input. 29:16.820 --> 29:18.333 It's relatively subtle, but 29:18.345 --> 29:20.040 I think it adds quite a bit. 29:20.041 --> 29:21.389 Now, let's add another 29:21.401 --> 29:23.440 layer of detail on top of this. 29:23.720 --> 29:24.959 I want to add some 29:24.971 --> 29:27.126 stray hairs that individually 29:27.127 --> 29:28.339 go off of the path that 29:28.351 --> 29:29.841 the other ones are taking. 29:30.000 --> 29:31.620 For that, let's just add a noise. 29:32.240 --> 29:34.388 And this one right now is affecting 29:34.400 --> 29:36.260 all the hair at the same time. 29:36.540 --> 29:38.070 But we're immediately going to 29:38.082 --> 29:39.880 move this into its own node tree. 29:40.340 --> 29:42.327 And there, to the factor, we're 29:42.339 --> 29:44.660 going to add a random value again. 29:45.800 --> 29:48.440 Same as before, we connect the curve ID. 29:48.441 --> 29:51.066 But here, I want this to either 29:51.078 --> 29:53.800 affect a curve, or not at all. 29:54.040 --> 29:55.680 So I don't need the float map, 29:55.692 --> 29:57.620 which goes from 0 to 1 gradually. 29:58.220 --> 30:00.214 But instead, I can just take a 30:00.226 --> 30:02.500 boolean, which is either 0 or 1. 30:03.040 --> 30:03.930 And now we can 30:03.942 --> 30:06.068 specifically control the amount 30:06.069 --> 30:08.620 of curves that are affected by this noise. 30:08.960 --> 30:11.538 If I put this to something like 0.1, 30:11.550 --> 30:14.420 we get this effect of individual runaway 30:14.421 --> 30:16.680 curves of hair that are just floating away. 30:16.681 --> 30:17.905 I want this to be a little 30:17.917 --> 30:19.106 bit more random, so I'm 30:19.107 --> 30:20.067 going to increase the 30:20.079 --> 30:21.421 scale of the noise texture. 30:21.840 --> 30:22.722 And right now it's a 30:22.734 --> 30:23.897 little bit too strong of 30:23.898 --> 30:26.162 an effect, so let's change 30:26.174 --> 30:28.100 the distance to 5mm. 30:29.000 --> 30:30.760 So that looks quite decent right now. 30:31.640 --> 30:33.375 For the stray hairs, let's 30:33.387 --> 30:35.066 also increase the scale 30:35.067 --> 30:36.320 along each curve to make 30:36.332 --> 30:37.861 it a little bit more fuzzy. 30:38.240 --> 30:39.639 And then make sure to move 30:39.651 --> 30:41.280 it up in the modifier stack. 30:41.780 --> 30:44.240 And now it's time for some final details. 30:44.241 --> 30:46.993 Because these clumps are still a little bit 30:46.994 --> 30:48.314 uniform, I want to add 30:48.326 --> 30:49.901 another clumping on top. 30:50.060 --> 30:53.347 So I go to the clump modifier that we have 30:53.348 --> 30:54.811 here and again move it 30:54.823 --> 30:56.500 into another node tree. 30:56.920 --> 30:58.312 And then in here we can just 30:58.324 --> 31:00.080 go ahead and duplicate this node. 31:00.680 --> 31:02.514 And then there I'll increase the guide 31:02.526 --> 31:04.420 distance a little bit to something like 31:04.421 --> 31:06.565 4mm and put the mask 31:06.577 --> 31:09.380 to something like 0 .25. 31:09.381 --> 31:10.517 And now we have an 31:10.529 --> 31:12.507 additional layer of clumping, 31:12.508 --> 31:15.280 which gives us a little bit more variation. 31:15.520 --> 31:17.944 Let's tweak the shape, so the really strong 31:17.945 --> 31:19.070 clumping is going to 31:19.082 --> 31:20.560 be the smaller one here. 31:20.620 --> 31:21.558 And then we have a little 31:21.570 --> 31:22.557 bit more subtle clumping 31:22.558 --> 31:24.981 that goes more towards the tip before that. 31:25.760 --> 31:27.787 For this, let's also add 31:27.799 --> 31:29.754 a clump offset, which 31:29.755 --> 31:31.037 for each clump will 31:31.049 --> 31:33.160 offset the tips a little bit. 31:33.500 --> 31:35.016 This is probably a little bit too strong. 31:35.040 --> 31:37.860 Let's go for something like 5mm. 31:38.680 --> 31:40.821 And then let's add a little bit more detail 31:40.822 --> 31:42.158 in the very end, right 31:42.170 --> 31:43.641 after the stray hairs. 31:43.680 --> 31:45.160 And I want to add another frizz. 31:45.320 --> 31:46.502 I can just take that here 31:46.514 --> 31:47.661 from the asset browser 31:47.662 --> 31:48.858 and straight up drag 31:48.870 --> 31:50.441 it into the node editor. 31:51.280 --> 31:52.869 And for this, I'm going 31:52.881 --> 31:54.483 to again use a random 31:54.495 --> 31:55.845 input for each curve 31:55.857 --> 31:57.220 with the curve ID. 31:57.760 --> 31:58.927 Let's take another color ramp 31:58.939 --> 32:00.240 to get more control over this. 32:00.520 --> 32:02.240 Let's do something around this. 32:02.860 --> 32:04.338 And here again, I don't want 32:04.350 --> 32:06.160 to affect the tips all too much. 32:06.161 --> 32:07.238 So instead I'm going to 32:07.250 --> 32:08.480 choose a negative shape. 32:08.820 --> 32:10.164 Let's go for something 32:10.176 --> 32:11.840 like 0.2 in the negative. 32:12.360 --> 32:12.991 Right now that's still 32:13.003 --> 32:13.733 a little too strong, so 32:13.734 --> 32:14.983 let's tone that down to 32:14.995 --> 32:16.640 something like 2mm distance. 32:17.100 --> 32:18.626 And that just gives us some 32:18.638 --> 32:20.860 overall nice variation and fuzziness. 32:21.300 --> 32:23.185 To make sure that the tips of the clumps 32:23.197 --> 32:25.140 are not getting too fuzzy, let's turn off 32:25.141 --> 32:27.124 the cumulative offset for this frizz 32:27.136 --> 32:29.400 node here, so that the tips are not being 32:29.401 --> 32:31.111 affected too much, but each point 32:31.123 --> 32:33.200 just individually jittered a little bit. 32:33.201 --> 32:35.745 Now we have a little bit of a dip in the 32:35.757 --> 32:38.501 pattern that we get from the overall noise. 32:38.620 --> 32:39.607 So let's just hide all 32:39.619 --> 32:40.799 the other modifiers that 32:40.800 --> 32:41.660 you have to take a 32:41.672 --> 32:42.980 closer look at the noise. 32:43.400 --> 32:44.459 To just go for something 32:44.471 --> 32:45.720 that's a little bit nicer. 32:47.080 --> 32:48.080 Maybe like this. 32:48.400 --> 32:49.820 And this is looking pretty good. 32:50.660 --> 32:52.373 Now this is already the entire 32:52.385 --> 32:54.340 setup that I wanted to show you. 32:54.540 --> 32:56.105 But this setup already includes 32:56.117 --> 32:57.643 a whole bunch of parameters, 32:57.644 --> 32:58.700 and you don't necessarily 32:58.712 --> 33:00.080 get them right the first time. 33:00.081 --> 33:02.438 So to be able to tweak everything, it's 33:02.450 --> 33:04.700 much easier when you can actually see 33:04.701 --> 33:05.756 the entire resolution 33:05.768 --> 33:07.140 while you're tweaking it. 33:07.340 --> 33:08.921 So one thing we can do is 33:08.933 --> 33:10.973 to go to the surface, and then 33:10.974 --> 33:12.233 there add something like, 33:12.245 --> 33:13.820 for example, a mask modifier. 33:14.400 --> 33:17.338 And then there we can just select a patch 33:17.350 --> 33:20.300 of faces in the center, where we create a 33:20.301 --> 33:22.441 new vertex group that we 33:22.453 --> 33:25.054 call mask, and assign these 33:25.055 --> 33:27.362 vertices to, which then we 33:27.374 --> 33:30.140 can use in the mask modifier. 33:30.860 --> 33:33.575 So now we just have a small amount of 33:33.587 --> 33:36.600 hair, where if we go to the full density, 33:37.120 --> 33:38.620 we have much less of a hard 33:38.632 --> 33:40.200 time with the performance. 33:41.220 --> 33:43.393 So now it's a lot easier to tweak the 33:43.405 --> 33:45.820 settings, having a better preview of what 33:45.821 --> 33:46.691 it's going to look like 33:46.703 --> 33:47.661 in the full resolution. 33:48.160 --> 33:50.120 But overall, I'm already quite happy. 33:50.360 --> 33:52.037 Just need to make sure that the mask 33:52.049 --> 33:53.920 modifier doesn't apply to the rendering. 33:54.400 --> 33:55.475 And then let's give this a 33:55.487 --> 33:56.700 render how it is right now. 33:57.000 --> 33:57.840 And there we have it. 33:58.020 --> 33:59.334 This is the final result of what 33:59.346 --> 34:00.920 we've accomplished in this tutorial. 34:01.720 --> 34:02.709 Now, you can definitely, if 34:02.721 --> 34:03.834 you want to, spend more time 34:03.835 --> 34:05.209 tweaking this in detail, especially 34:05.221 --> 34:06.261 when looking at reference. 34:06.860 --> 34:08.562 But this is the essential setup that 34:08.574 --> 34:10.380 I've been using for this example file. 34:10.880 --> 34:12.695 And there, though, I've been doing most 34:12.707 --> 34:14.580 of these operations entirely in the node 34:14.581 --> 34:15.860 tree, which makes it a little 34:15.872 --> 34:17.340 bit easier to have an overview. 34:17.880 --> 34:19.418 But organizing these node 34:19.430 --> 34:21.413 setups in individual modifiers 34:21.414 --> 34:22.390 is also definitely an 34:22.402 --> 34:23.860 option that has its benefits. 34:24.280 --> 34:26.362 Okay, I hope that gave you a good first 34:26.374 --> 34:28.520 impression of how to use these new nodes 34:28.521 --> 34:29.836 in your grooming workflow, 34:29.848 --> 34:31.123 even without needing to 34:31.124 --> 34:32.318 know necessarily all that 34:32.330 --> 34:33.680 much about geometry nodes. 34:34.260 --> 34:36.361 That said, if you do feel like you could 34:36.373 --> 34:38.280 use a boost in your understanding of 34:38.281 --> 34:40.104 geometry nodes, I made a course on 34:40.116 --> 34:42.160 the Blender Studio platform explaining 34:42.161 --> 34:44.313 everything you need to know to get started 34:44.325 --> 34:46.540 with geometry nodes on a fundamental level. 34:47.100 --> 34:48.815 I made it almost one year ago now, 34:48.827 --> 34:50.900 but all the information still holds true, 34:51.080 --> 34:52.760 and I do think it's worth checking out. 34:53.140 --> 34:54.010 But anyways, thanks 34:54.022 --> 34:55.368 for sticking around for the 34:55.369 --> 34:56.432 video, and I hope you 34:56.444 --> 34:58.081 have a great rest of your day.