WEBVTT 00:00.510 --> 00:05.090 Welcome to baking using the multi Rose modifier in this video. 00:05.090 --> 00:10.860 You will learn how to bake detail from the higher multi rays to a lower one and you'll realize it's 00:10.860 --> 00:17.370 very similar to the baking you've done before but this time only one model is involved so we don't have 00:17.370 --> 00:19.870 to have multiple models on there. 00:20.100 --> 00:23.800 So let's go explore this now and hop on over into blender. 00:24.660 --> 00:28.910 Okay if you remember last time we had our multi rez blob. 00:29.190 --> 00:34.950 If you didn't save that don't worry let's go and create a new one right away. 00:34.980 --> 00:37.580 Just a good bit of practice there. 00:37.620 --> 00:39.080 So going to go ahead and delete my object. 00:39.090 --> 00:39.650 There it goes. 00:39.660 --> 00:40.990 Keep the save file there. 00:40.990 --> 00:43.780 I'm going to add in a cube. 00:43.950 --> 00:50.950 I'm going to go to the subdivision's surface had a couple probably three. 00:51.030 --> 00:51.910 That's fine. 00:52.140 --> 00:57.960 Then I'm going to simply go into sculpt mode after I've added in a multi resolution modified so let's 00:58.050 --> 00:59.490 add that in. 00:59.760 --> 01:05.340 I'm going to actually take it all the way up to six which should give me yep three million polygons 01:05.340 --> 01:11.480 to play with that is lots of polygons to lower the preview setting down to 1. 01:12.220 --> 01:16.430 And I'm going to go into sculped and I'm going to add some detail. 01:16.620 --> 01:23.060 Then move the strength of the brush using up so I get some dimples. 01:24.030 --> 01:28.570 Now of course these dimples are the size of them is actually the distance I am. 01:28.570 --> 01:33.570 It's measured in pixels from the image so if I move in I can put smaller dots around. 01:33.580 --> 01:40.930 Now obviously I can go through to my heart's content and make dots and squiggles all over here until 01:41.140 --> 01:42.990 I don't want to do it anymore. 01:43.390 --> 01:47.610 There you go add some fine detail in there as well as just a screen. 01:47.650 --> 01:49.470 It's just the screen looks fine. 01:49.720 --> 01:52.770 Okay so now we've played with VAT's unjust underskirt. 01:52.810 --> 01:56.680 I'm actually going to put a recess in as well because we don't have a recess. 01:56.710 --> 01:58.320 That's quite a big one. 01:58.560 --> 02:04.750 So that's fine let's see how that has come down in the preview So if we go to object mode here we can 02:04.750 --> 02:09.290 see that it has affected the model ever so slightly but not much. 02:09.310 --> 02:13.060 And of course this looks nothing like. 02:13.330 --> 02:16.000 If we go into sculpt mode again it looks nothing like that. 02:16.000 --> 02:19.810 It's close kinda but really nowhere near it. 02:19.930 --> 02:20.910 So we have this here. 02:20.920 --> 02:25.510 When I said it's a smooth shade because it's going to be smooth shaded any way when it's done. 02:25.600 --> 02:29.590 That's important because when we bake the Normal's And that's what we're going to do in a moment. 02:29.770 --> 02:34.200 It needs to be smooth because that's the starlight going for now. 02:34.210 --> 02:39.880 Take note of the render setting here the render setting here is going to say from which level it's going 02:39.880 --> 02:41.620 to bake downwards. 02:41.680 --> 02:49.660 That is very important so that before we can do any baking we need to go and add a material to our object 02:50.140 --> 02:53.930 that material has to have something associated with it. 02:53.950 --> 02:58.090 Um no so see an image with it now so I can bake straight to that image. 02:58.090 --> 03:05.560 Someone I go to image texture and there isn't an image yet so let's go ahead over to the 3D editor and 03:05.560 --> 03:08.580 a hop into edit mode and just un wrap. 03:08.740 --> 03:11.390 I'm going to put my own seam on here. 03:11.560 --> 03:13.650 Let's see where's all the detail. 03:13.750 --> 03:21.070 If I'm going to use v smart you reproject to show you guys what happens hopefully what happens if it 03:21.070 --> 03:21.750 gets it. 03:21.760 --> 03:24.650 If it puts the scenes in the wrong place basically. 03:24.670 --> 03:26.800 So now I've got vats I've unwrapped it. 03:26.800 --> 03:29.140 We can go to the U.S. image editor. 03:29.590 --> 03:31.000 Okay that's looking good. 03:31.000 --> 03:31.960 We need a new image there. 03:31.960 --> 03:34.900 So going to go a new image and I'm going to call this blob. 03:36.400 --> 03:39.660 I'm struggling to see the keyboard here through a microphone but there we go blob. 03:39.670 --> 03:40.560 Normal. 03:40.810 --> 03:41.080 Good. 03:41.140 --> 03:44.670 Keep it a 1 0 2 4 that's sokoban a Selecta. 03:44.680 --> 03:48.510 Over here in the material properties. 03:48.520 --> 03:49.730 So that's now signed. 03:49.900 --> 03:52.180 We can go then go over to the render tab. 03:52.180 --> 03:57.970 Now remember when you do any form of baking or rendering you are rendering and therefore blender can 03:57.970 --> 03:59.400 be unstable and crash. 03:59.410 --> 04:02.030 So we want to avoid that if possible. 04:02.140 --> 04:06.580 Well certainly we want to avoid it crashing but if we can't control that we can control whether or not 04:06.580 --> 04:08.020 we've saved our work. 04:08.050 --> 04:10.400 So I'm going to go ahead and save. 04:10.940 --> 04:16.750 Let's scroll all the way down to the bottom and go to the back options and scroll down a little more 04:17.790 --> 04:19.090 in the back type here. 04:19.090 --> 04:25.470 I'm going to go from combined to normal and I'm going to just go ahead and hit bake now. 04:25.600 --> 04:34.150 It's at a high resolution the six subdivision resolution quite a few polygons there. 04:34.150 --> 04:35.500 And that's going to take a while to go through. 04:35.500 --> 04:38.410 So it's come out here and we can see it's relatively smooth. 04:38.410 --> 04:43.690 Now before we move on I just want to show the impact of lowering this the setting so if I lower it down 04:43.690 --> 04:46.190 to one and then go and bake. 04:46.360 --> 04:51.110 It's a lot quicker but you're losing all of those fine details. 04:51.280 --> 04:55.780 So is that render sitting there that you also need to keep it nice and high if you want to bake from 04:55.780 --> 04:57.450 one level down to another. 04:58.650 --> 05:02.280 In this case we are baking down to where it is actually zero. 05:02.280 --> 05:06.070 So if we go ahead and go back here. 05:06.210 --> 05:06.840 Ake. 05:08.010 --> 05:12.700 It's going to take a while again because it's at that higher level up subdivision. 05:12.840 --> 05:14.040 And here we go. 05:14.400 --> 05:20.860 So we've got these normal map all made and how we can go ahead and apply it to our model. 05:21.510 --> 05:25.610 So I'm going to leave that alone for a moment and then go to the 3D view. 05:25.930 --> 05:31.260 Go to object modes I can see what's going on and I'm going to go to rendered mode. 05:31.500 --> 05:35.430 So this is what happens with seams on here now at the moment. 05:35.430 --> 05:37.240 This isn't very bright. 05:37.380 --> 05:41.480 So I put a sunlamp in and turn it strength up to four. 05:43.140 --> 05:49.170 So we can see here that the we've got some scenes here and the reason why you end up with some nasty 05:49.170 --> 05:49.690 seams. 05:49.700 --> 05:53.600 In fact it looks like it changed the direction of the Normal's there midway through. 05:53.880 --> 05:59.070 Now the reason why these seams exist is because you need to split up the model somewhere to cut it in 05:59.070 --> 05:59.650 half. 05:59.820 --> 06:05.820 But the reason why it can't match them up perfectly is because it's got two different normal points 06:06.060 --> 06:07.890 placed on top of one another. 06:08.040 --> 06:11.990 When you wrap this image together essentially they lay on top of one another. 06:12.000 --> 06:17.430 And of course that can cause an graphical artefact So we'll see those in action in a few moments when 06:17.430 --> 06:22.140 we go and apply this normal map as a normal map rather than a diffused map. 06:22.140 --> 06:29.670 So first of all I'm just going to hide my tool shell from propertys and move across and open up the 06:29.670 --> 06:32.550 node editor so we're going to play with the materials. 06:32.550 --> 06:36.820 Now I'm going to call it cheat hearing them call it efficiency. 06:36.870 --> 06:41.270 We do want the image but we don't want it to control the diffuse colour. 06:41.410 --> 06:42.590 So you can unplug it. 06:42.600 --> 06:46.930 There we go there so that's that bit sorted but we still got the image texture in here. 06:47.070 --> 06:53.670 Now as you remember before what we're going to have to do here is set it up to be a normal. 06:53.670 --> 06:55.970 So we need a couple of other things in this chain. 06:55.980 --> 07:02.220 We need it's Tell blender how to apply this image texture and also that it's a normal map and give it 07:02.220 --> 07:05.380 some control so we can control the strength of the normal map. 07:05.490 --> 07:08.450 And of course that leads me onto a challenge. 07:09.260 --> 07:15.410 I would like you to go ahead and apply the normal map so finish off the node set up and use your baked 07:15.470 --> 07:22.120 normal map to control the normal of the day few shader the normal input of the the few shader pause 07:22.130 --> 07:24.060 video now and give that a go. 07:26.510 --> 07:27.240 Okay guys. 07:27.260 --> 07:27.940 Welcome back. 07:27.950 --> 07:31.040 Let's go ahead and apply that normal map. 07:31.730 --> 07:35.470 Okay so the first thing I'm going to do over here is hide. 07:35.480 --> 07:37.700 That's I've got a bit more space to work with. 07:37.760 --> 07:41.200 So we need to define how the image texture is used. 07:41.200 --> 07:49.220 And I'm going to use a texture coordinates and link-up the U V to the vector inputs of the texture. 07:49.400 --> 07:56.330 Now of course you could also use at this point if you have multiple uv's Maps you may have to use this 07:56.330 --> 07:57.430 particular technique. 07:57.440 --> 08:01.920 Now where is it hidden under input you v map. 08:02.030 --> 08:07.420 And we could also do that and select the only you v map we've got in there and plug that in as well. 08:07.560 --> 08:12.510 But I'm going to leave it as a text record and we need to make sure that we're not using colour that 08:12.530 --> 08:18.830 we're using non colour data otherwise the normal map won't be interpreted properly. 08:19.220 --> 08:28.310 Finally what we need to do is add in a vector normal map and then we can take the colour and plug it 08:28.310 --> 08:29.210 into colour. 08:29.960 --> 08:35.090 Colour out of image texture and plug it into the colour input of the normal map and then take the normal 08:35.120 --> 08:38.730 output and plug it into the normal input of the diffuse shader. 08:39.020 --> 08:43.280 Wow okay that's starting to look pretty good. 08:43.890 --> 08:46.670 I'd like to see these two side by side at the end. 08:46.680 --> 08:48.840 But that is really effective. 08:48.840 --> 08:50.810 It's worked really well. 08:50.880 --> 08:56.470 Now where that normal map was a bit funny that's also worked really well. 08:56.650 --> 09:01.160 I mean I'm actually quite surprised that that hasn't decided to look a bit awkward. 09:01.170 --> 09:06.030 We can see that we're working with the low poly model here because of the inclusion You see the jaggedness 09:06.030 --> 09:07.260 around the very edge. 09:07.410 --> 09:12.320 And of course that doesn't actually raise up as high as it would have done otherwise. 09:12.360 --> 09:20.430 Of course we can go ahead here and add in the first level of preview and that really does accentuate 09:20.760 --> 09:27.710 the normal map itself it adds that the geometry in there at the same time as some of these dimples. 09:27.720 --> 09:31.560 But it doesn't give us the smoothness gives us quite jaggedness there. 09:31.560 --> 09:34.500 So we've got two options there of which ones we can use. 09:34.500 --> 09:41.160 I'm going to preview one here so I've got some of these high points that I've done and of course what 09:41.160 --> 09:46.080 we can do is just render that out what we don't know what it looks like at the moment is what it looks 09:46.080 --> 09:48.050 like when it's fully rendered. 09:48.060 --> 09:52.040 So the first thing here is to turn down the render from six. 09:52.080 --> 09:57.560 If we leave on six and then we go and do a full rendering it will just be the high rez model. 09:57.630 --> 10:05.970 I can demonstrate that straightaway by going to the can review and zooming in and that yeah this one's 10:05.970 --> 10:07.530 here is absolutely fine. 10:07.530 --> 10:10.930 Let's try and fill up a good portion of the frame with it. 10:10.920 --> 10:15.210 If we make the black um um just going to do this I love doing this sort of thing I'm going to make the 10:15.210 --> 10:16.870 background completely black. 10:17.070 --> 10:22.200 And then it does look like some sort of funky asteroid in space and I'm just going to go ahead and hit 10:22.200 --> 10:26.890 the render again because I've got the render level set at six. 10:27.000 --> 10:32.910 It's actually going to take a while to do all the computation it needs to do to render out those three 10:33.000 --> 10:34.360 million polygons. 10:34.350 --> 10:39.000 So that's quite a high level and you can appreciate that if this was something you were going to use 10:39.270 --> 10:46.650 in a different package or only part of your scene you probably dont want it that many polygons. 10:46.650 --> 10:53.220 So here we go it's filling out all of these things and we've got a lovely crisp outline here that's 10:53.220 --> 10:55.160 brilliant that we've got that. 10:55.510 --> 10:59.190 But it really comes at a cost that detail comes at a cost. 10:59.210 --> 11:03.630 And here we go looking almost in the centre of this picture. 11:03.720 --> 11:08.010 If you follow my cursor there you can see where there's a seam here. 11:08.010 --> 11:10.590 That's an that's an artefact of where the seam is. 11:10.650 --> 11:14.900 So we can control where seams go and we certainly don't want it there. 11:14.910 --> 11:19.530 That was the bit that was facing the camera some just going to change the render slot slot so. 11:19.760 --> 11:25.680 And I'm going to drop the render level down to 1 so still got some geometry there. 11:25.830 --> 11:27.930 Otherwise it's just the sphere again. 11:27.990 --> 11:31.890 And we do one without the sphere as well that's render that out now and see what that looks like and 11:31.890 --> 11:35.650 you can see immediately how much quicker that was to do the work. 11:36.990 --> 11:41.500 So let's go between the two slots now and just see the difference. 11:41.700 --> 11:42.020 Okay. 11:42.030 --> 11:43.580 There is a difference. 11:43.590 --> 11:45.160 There definitely is a difference. 11:45.310 --> 11:53.340 Now what we can do here of course is potentially turn the amounts of normal map up a little that is 11:53.340 --> 11:56.590 a possibility so we can do that life over here. 11:56.610 --> 12:02.860 I zoom in that we're on preview level 1 let's turn the normal map strength up to two. 12:02.880 --> 12:03.300 Okay. 12:03.340 --> 12:09.240 Now let's render that out at this lower level. 12:09.340 --> 12:13.970 See that is nice and quick as it's lower and we can see that the shadows are darker here. 12:14.040 --> 12:17.550 And if we switch over to slot one to compare okay. 12:17.670 --> 12:19.650 There a little bit too dark in this case. 12:19.650 --> 12:23.340 So once again we got some horrible artefacts going around the top there. 12:23.340 --> 12:30.960 So perhaps this is a bit too low a poly for this particular level of detail so we can up it again and 12:30.960 --> 12:37.240 really for render basically take upper level here and hit render again and see what we get out there. 12:38.160 --> 12:40.110 That is starting to look much better. 12:40.110 --> 12:44.400 Of course we can tweak these things etc. but of course we're now at 12000. 12:44.400 --> 12:47.760 But that is a lot less of course than 3 million. 12:47.760 --> 12:54.660 So it looks like 12000 is going to be the sort of sweet point here before we start having too much detail 12:54.690 --> 13:01.020 in our model but that is looking really really good and obviously compared to the 3 million polygon 13:01.020 --> 13:07.530 one I am going to try here a value a strength of one point five see will that comes out that we use 13:07.530 --> 13:10.250 slot to again and just render that out. 13:10.950 --> 13:11.270 Okay. 13:11.280 --> 13:16.050 I think the shadows here are looking a bit better now so we should be able to compare slot one slot 13:16.050 --> 13:17.480 to yet but very close. 13:17.490 --> 13:22.290 Now in terms of their tonal quality and that is really really impressive. 13:22.500 --> 13:28.580 Now the final thing I want to try is what does this look like when it's baked all the way down to none. 13:28.640 --> 13:34.580 But literally as few faces as possible so this is what this looks like now on just a sphere. 13:34.710 --> 13:41.820 You lose all of the occlusion round the outside but you still got this detail here and that in itself 13:41.850 --> 13:43.290 is very powerful. 13:43.290 --> 13:48.590 Now on a static image like this it doesn't really show off what is really going on. 13:48.600 --> 13:53.790 However if we go to the 3-d view and I go and grab the lamp I'm just going to leave it like this for 13:53.790 --> 13:57.300 the moment on this no subdivision level. 13:57.390 --> 14:00.820 I go and grab the lamp and just randomly rotate it's for. 14:00.840 --> 14:04.290 There we go we can see the shadows are changing. 14:04.380 --> 14:07.670 That in itself is incredibly powerful. 14:07.680 --> 14:14.820 That means that the light hitting that surface is being affected by our normal map. 14:15.180 --> 14:16.130 And there we go. 14:17.060 --> 14:22.850 That looks like the sun or whatever it is if this was an asteroid is pretty low in the sky. 14:22.880 --> 14:28.130 Now of course if we go and select are object that we are working on again and bump that up a couple 14:28.130 --> 14:33.850 of levels we can see that we can still use our normal map to great effect without the normal map turned 14:33.860 --> 14:38.180 out well we can test that we can simply unplug it and you can see immediately the difference. 14:38.180 --> 14:40.310 This is what it looks like without the normal map. 14:40.460 --> 14:45.210 We put that normal map on and boom it suddenly comes alive. 14:45.230 --> 14:46.150 Amazing. 14:46.310 --> 14:47.750 How are you guys getting on. 14:47.750 --> 14:53.510 Did you make a funky shape yourself if you did or you applied this to some other model that you're working 14:53.510 --> 14:53.660 on. 14:53.660 --> 14:56.100 I'd love to see the results you've come up with. 14:56.120 --> 15:00.680 Please share in the discussions and I will see you guys in the next lecture.