WEBVTT 00:01.190 --> 00:04.330 Welcome to exporting and particle systems. 00:04.580 --> 00:09.350 In this video you will see how particle systems export from Blender. 00:09.620 --> 00:11.780 You'll learn how to convert them. 00:11.960 --> 00:19.370 I understand that this can break your modelling flow and realize that you may be better off using the 00:19.370 --> 00:21.890 particle system in the other program. 00:21.890 --> 00:23.720 You are exporting too. 00:24.100 --> 00:25.390 If it exists. 00:25.640 --> 00:29.090 So let's hop straight on over into blender right. 00:29.150 --> 00:36.500 So to make this nice and straight forward I suggest if you are following along and do make a new save 00:36.830 --> 00:41.730 So go file save as and save it perhaps as fluffy bunny exports. 00:41.750 --> 00:43.990 This is very good to be very useful erm. 00:44.040 --> 00:49.610 Even if you don't have a game engine or something else to import it to as it will increase your understanding 00:50.030 --> 00:54.430 of how blender and other programs can interact. 00:54.440 --> 01:00.050 So first of all I'm going to make my scene nice and simple and I'm going to delete everything but the 01:00.050 --> 01:01.670 rabbit including the eyes. 01:01.670 --> 01:02.880 In this case. 01:03.080 --> 01:10.140 So I've already saved my file as fluffy bunny exports and that she going to select everything here. 01:11.050 --> 01:12.210 And X. 01:12.250 --> 01:13.060 Delete. 01:13.060 --> 01:16.500 So we just left with the fluffy bunny in the scene. 01:16.510 --> 01:24.130 Now if I go ahead and go file exports and export that as an FBI X an I'm going to export this as fluffy 01:24.130 --> 01:27.860 bunny exports and click the export button. 01:27.880 --> 01:28.510 Brilliant. 01:28.540 --> 01:29.460 So that's all done. 01:29.470 --> 01:35.090 Let's go see how that opens up in two very popular game engines. 01:35.920 --> 01:43.890 Right so in the unreel four engine we can see that our bunny has some what's missing some fur. 01:44.170 --> 01:45.400 So that's no good. 01:45.400 --> 01:45.920 That's nice. 01:45.920 --> 01:49.220 She come across how we want it to come across. 01:49.270 --> 01:56.170 Now in this case I would thoroughly recommend using the particle system built into unreel for rather 01:56.170 --> 01:58.490 than trying to get it across. 01:58.490 --> 02:00.420 But I'll show you how to get across any way. 02:00.520 --> 02:07.900 If you wanted a more static appearance or if you were making a more cartoony of hairstyle let's say 02:07.900 --> 02:11.450 or any other particle system so this will apply to any. 02:11.630 --> 02:14.260 I repeat again any particle system. 02:14.260 --> 02:20.100 Obviously if we got rocks or trees or flowers or grass scattered around that's fine. 02:20.170 --> 02:23.820 We can export those across but here's there's so many of them. 02:24.120 --> 02:30.150 If it's not being managed in the actual engine itself you're going to have a few problems. 02:30.190 --> 02:35.770 When I was trying it earlier I ended up with one point six million triangles on our bunny and that was 02:35.770 --> 02:38.760 just a bit high for my liking. 02:38.770 --> 02:41.340 Let's see how it looks over in unity. 02:41.500 --> 02:48.730 So just for confirmation over annuity engine were also missing hair on our bunny so that's no good at 02:48.730 --> 02:49.080 all. 02:49.210 --> 02:56.740 So again if you are using unity you'd use the unity Hess system here particle system so that is the 02:56.740 --> 02:57.520 general rule. 02:57.520 --> 03:05.350 However if you do if you have kreda hairstyling you wanted to solidify into a into something you can 03:05.440 --> 03:07.990 import into with these game engines. 03:08.020 --> 03:10.850 Well go ahead and show you how to do that right now. 03:11.260 --> 03:15.070 So taking our bunny here to make things simple. 03:15.100 --> 03:20.740 What I'm gonna do is I'm only going to do one of these hair particle systems that we've got I think 03:20.740 --> 03:28.810 we've got five intact something to go across to the rabbits itself and under the modifiers tap which 03:28.810 --> 03:32.680 is currently open which is useful and is going to lift the SO who can see what's going on. 03:32.680 --> 03:37.510 We've got five particle systems so let's just turn them off. 03:37.510 --> 03:41.200 They're not named which is not very useful. 03:41.230 --> 03:41.930 Tut tut. 03:41.950 --> 03:49.910 So let's keep the particle system one I think up here and we can get rid of all the other. 03:49.910 --> 03:54.910 So I'm going to keep the body particle system so can we go across here and we can see that I'm literally 03:54.910 --> 03:55.940 just going to. 03:56.170 --> 03:58.600 Oh I just deleted the body can I do it. 03:58.600 --> 03:59.410 Excellent. 03:59.410 --> 04:04.570 Love being able to undo skerryvore is and get rid of the chest. 04:04.570 --> 04:07.180 So now we've just got this hair system here. 04:07.180 --> 04:12.880 The reason one of them is just to emphasize the point that this can be incredibly slow with this many 04:12.880 --> 04:14.800 hairs that we've got on here. 04:14.800 --> 04:16.010 So now we've got that there. 04:16.030 --> 04:21.460 We can go back into the modified tab and there's this convert button and you just click that. 04:21.580 --> 04:23.190 It's as simple as that. 04:23.260 --> 04:30.500 We have now converted our heads up particle system to a mesh object. 04:30.640 --> 04:38.530 But it's not done yet if we try and import that in to any other program or not any other program but 04:38.530 --> 04:44.230 certain programs I know in real would fall over because it would complain that there's actually no geometry 04:44.230 --> 04:45.800 here there's no triangles. 04:45.940 --> 04:52.000 All it is is a series of edges says converted those hairs into a series of edges so we need to make 04:52.000 --> 04:53.310 them a bit thicker. 04:53.340 --> 04:58.660 Now a lot of ways of doing that but a really straightforward way would be to hop in over into edit mode 04:59.020 --> 05:06.130 select all of those hairs and extrude them ever so slightly in any direction. 05:06.130 --> 05:13.730 Some of them extrude democracies slightly in the said direction by almost to extrude and arm not extruding. 05:14.320 --> 05:16.060 Let's make sure we have everything selected. 05:16.070 --> 05:18.910 We're extruding in that direction. 05:19.150 --> 05:21.870 Silly me I'm trying to extrude a face. 05:21.950 --> 05:22.240 Okay. 05:22.240 --> 05:30.130 So selecting edge select and then trying to extrude does result in a lot of geometry trying to be made. 05:30.130 --> 05:36.190 So we're going to extruding the z direction by nought point nought one something really really small. 05:36.530 --> 05:37.860 Okay. 05:37.930 --> 05:45.270 Now if we go and export that's an I'm going to call this exports. 05:46.100 --> 05:52.000 We body I'm just going to spend it with body so I know there's a different one an export that. 05:54.840 --> 05:58.850 And then in the game engines we'll see what that looks like. 05:58.860 --> 06:04.680 Here we are in the unreal four engine and we can see we've got some hare we've got a hairy chest on 06:04.680 --> 06:10.980 the rabbits but the rest of the hairs haven't really come through quite as intended or that might just 06:10.980 --> 06:12.330 be how it's drawing it. 06:12.330 --> 06:19.090 By the looks of things yeah I think it is how it's drawing if I move round here. 06:20.070 --> 06:22.560 It seems that certainly seems to be more here on this site. 06:22.560 --> 06:25.440 The dark side of the rabbits there appears to be on here. 06:25.470 --> 06:31.070 So we need to play about with the particle system to get this actually coming across how we want. 06:31.290 --> 06:37.830 Let's have a look at the Unity and suspected we'll see exactly the same thing here with more hair on 06:37.830 --> 06:38.980 the other side. 06:39.410 --> 06:45.500 Yes so we've got a lot of playing about to get this how we want it. 06:45.580 --> 06:50.150 It's a good start it's not perfect by any stretch of the imagination. 06:50.310 --> 06:56.190 Now of course you probably wouldn't want to do this you would probably use the built in hare generators 06:56.220 --> 07:00.960 on both of these platforms or another application if you had it if you didn't have the option of course 07:01.230 --> 07:05.400 this is your only option of making sure your model comes out complete. 07:05.400 --> 07:10.680 Now of course it is very difficult to go ahead and edit this anymore we cant comb it any way we can 07:10.690 --> 07:16.800 in blender we can comb it move its about the particle systems themselves still exist in there. 07:16.800 --> 07:18.970 Weve just converted them to a mesh. 07:19.110 --> 07:23.040 So if we did do that it over in blender mestas go across. 07:23.040 --> 07:29.830 Now wed have to remember to turn off this mesh object over in blender. 07:29.820 --> 07:34.250 We'd need to turn it off when rendering and probably in the viewport as well. 07:34.260 --> 07:42.780 If we come into object mode so that we dont get a double amount of hairs if we turn it back on as you 07:42.780 --> 07:46.100 can see it somewhat confuses the viewport. 07:46.110 --> 07:49.650 So theres lots of things to experiment with with that. 07:49.650 --> 07:57.480 In general as I say I would recommend using built in particle system generators in game engine certainly 07:57.510 --> 07:59.730 and other 3D applications. 07:59.730 --> 08:04.540 So other things that use particles and we move on to this later on in the course as well. 08:04.560 --> 08:10.150 You can use the particle system to just distribute objects around your scene. 08:10.170 --> 08:16.500 In that case you probably do want to do what weve just done with these hairs and apply it in your scene 08:16.500 --> 08:17.220 itself. 08:17.340 --> 08:26.520 However things like hairs smoke fire water etc. trying to move those across is very difficult as weve 08:26.520 --> 08:28.770 seen here it hasn't come across smoothly. 08:28.980 --> 08:33.290 And of course if it's moving you it's animated at all. 08:33.360 --> 08:38.140 It's a real downer because it's just going to be static not gonna look very good at all. 08:38.400 --> 08:39.170 So there we go. 08:39.270 --> 08:42.150 Any questions of course ask in the discussions. 08:42.150 --> 08:48.860 Hope this helps you with moving assets from Blender into game engines and other packages as well. 08:48.910 --> 08:51.420 And I will see you guys in the next lecture.