1 00:00:01,430 --> 00:00:07,280 Guys in this lecture I would like you to focus on the fall of the radius and full of distance and acquire 2 00:00:07,300 --> 00:00:12,850 a great understanding because they will help you a lot in doing your visual effects and your motion 3 00:00:12,850 --> 00:00:13,350 graphics. 4 00:00:13,360 --> 00:00:15,770 And you know including some very interesting lights. 5 00:00:16,620 --> 00:00:20,750 So please raise me open the composition to fall off. 6 00:00:21,090 --> 00:00:23,090 And over here we have a single light. 7 00:00:23,100 --> 00:00:27,190 If you notice I remove the ambient light only one single light. 8 00:00:27,540 --> 00:00:34,920 And this is what I would like you to do first before take the Confederacy to zero OK and take the fall 9 00:00:34,920 --> 00:00:43,260 off to none and take the radius to zero and the fall off distance to zero. 10 00:00:43,470 --> 00:00:45,900 And let's not exactly what we have. 11 00:00:46,140 --> 00:00:48,630 We have a light here that will never fall off. 12 00:00:48,760 --> 00:00:53,580 You'll notice if I take it backward it will never fall off. 13 00:00:53,580 --> 00:00:56,150 In fact it will stay on all the time. 14 00:00:56,160 --> 00:00:58,670 It has no falloff. 15 00:00:58,890 --> 00:01:01,400 And it depends on the cone angle. 16 00:01:02,400 --> 00:01:03,590 For the light. 17 00:01:03,600 --> 00:01:06,960 So now you have a nice spot light over here. 18 00:01:06,960 --> 00:01:09,690 So what exactly is a falloff. 19 00:01:09,690 --> 00:01:14,730 Imagine yourself in a car door or in a tunnel and you have a flashlight in your hand. 20 00:01:15,150 --> 00:01:18,580 And this tunnel or Khoder is really really long infinite. 21 00:01:18,780 --> 00:01:25,980 If you point the flashlight straight towards infinity after a certain distance the light start falling 22 00:01:25,980 --> 00:01:27,350 off or disappearing. 23 00:01:27,540 --> 00:01:29,910 This is the falloff. 24 00:01:29,940 --> 00:01:36,410 Now I put the falloff on and we notice the light will never you know go off or we never fall. 25 00:01:37,510 --> 00:01:39,390 Let's try something else. 26 00:01:39,390 --> 00:01:41,800 If you come to fall off here you have three options. 27 00:01:41,800 --> 00:01:48,140 The Moth and the inverse square let's go for the smooth now and the light completely disappeared. 28 00:01:48,220 --> 00:01:48,960 Why is that. 29 00:01:49,030 --> 00:01:52,040 Because the radius of the light is set to zero. 30 00:01:52,100 --> 00:01:53,700 It's Englis a bit the cone. 31 00:01:54,050 --> 00:01:54,760 OK. 32 00:01:54,970 --> 00:01:59,110 And start increasing the radius pressure shift to increase pretty fast. 33 00:01:59,110 --> 00:01:59,880 Here you are. 34 00:02:00,130 --> 00:02:04,900 And at certain point the light start you know coming into existence if you like. 35 00:02:05,230 --> 00:02:09,930 And this is a pretty sharp light the corner of feathering is zero. 36 00:02:10,270 --> 00:02:13,830 This is the cone of the light not the cone of the spotlight. 37 00:02:13,900 --> 00:02:17,670 This is the cone of the spotlight and this is the cone of the light. 38 00:02:17,770 --> 00:02:23,260 You can imagine this in 3-D it's like you take a lampshade that is open from under and you stick it 39 00:02:23,260 --> 00:02:24,050 to the ceiling. 40 00:02:24,260 --> 00:02:29,110 Now from the ceiling to the ground and is going to give you a kind of circle on the ground. 41 00:02:29,140 --> 00:02:31,640 This is the corn starch from here. 42 00:02:31,640 --> 00:02:32,600 That's the ceiling. 43 00:02:32,710 --> 00:02:35,620 And then it gives you this cone on the floor. 44 00:02:35,920 --> 00:02:38,850 So this is the concept of the radius. 45 00:02:38,890 --> 00:02:44,800 If you increase the radius of course the light increases in distance. 46 00:02:44,800 --> 00:02:46,750 This is the radius over here. 47 00:02:46,920 --> 00:02:47,440 OK. 48 00:02:47,560 --> 00:02:50,640 If you increase it the light is gonna be bigger. 49 00:02:50,680 --> 00:02:56,820 As simple as this this light is not falling off and it's very unusual. 50 00:02:57,060 --> 00:03:02,770 But still remember guys you can use it in very many visual effects and motion graphics. 51 00:03:03,080 --> 00:03:07,720 Let's say now the falafels stick the radius a bit behind. 52 00:03:07,830 --> 00:03:09,360 Just to put it over here. 53 00:03:09,750 --> 00:03:10,840 OK. 54 00:03:10,860 --> 00:03:13,500 And then start working on the fall off. 55 00:03:13,620 --> 00:03:21,420 If you start increasing the falloff this will be the distance from the end of the cone to where or how 56 00:03:21,420 --> 00:03:24,910 long it's going to take for the light to disappear. 57 00:03:24,930 --> 00:03:26,840 This is the fall distance. 58 00:03:27,030 --> 00:03:31,280 So it's from zero and you grow it and start falling off. 59 00:03:31,410 --> 00:03:33,880 But it's very natural in after. 60 00:03:33,960 --> 00:03:39,750 You notice this is the distance that the lights start falling off meaning the intensity of the light 61 00:03:39,750 --> 00:03:43,560 is going to be you know diminishing until there is no more light. 62 00:03:43,560 --> 00:03:45,860 Look how natural it is over here. 63 00:03:46,170 --> 00:03:53,490 If you make it even bigger here you are you have quite some lighting here and not is that the distance 64 00:03:53,490 --> 00:04:01,790 is increasing and the intensity is inverse the distance and it's diminishing and becoming totally over. 65 00:04:02,010 --> 00:04:06,970 So this is the concept of falloff for small radius and full of this is. 66 00:04:07,370 --> 00:04:15,660 Let's put them back to 0 0 to the radius and to Full of distance to zero and go to the option of inverse 67 00:04:15,750 --> 00:04:17,240 square clamped. 68 00:04:17,350 --> 00:04:19,870 He said we don't have a light. 69 00:04:19,990 --> 00:04:21,890 So let's try the radius here. 70 00:04:21,920 --> 00:04:30,440 If you increase the radius not just what's going to happen here the light starts with a very high intensity 71 00:04:30,990 --> 00:04:35,610 and immediately after this intensity is thought of falling off. 72 00:04:35,820 --> 00:04:39,410 OK let's take it behind and see exactly what happens. 73 00:04:39,420 --> 00:04:39,650 OK. 74 00:04:39,660 --> 00:04:43,750 So the light it takes very long for it to disappear. 75 00:04:43,860 --> 00:04:46,980 And actually at a certain point I'm going to shift. 76 00:04:47,040 --> 00:04:48,050 It's going to disappear. 77 00:04:48,060 --> 00:04:49,480 That's very far distance. 78 00:04:49,480 --> 00:04:51,960 Now I'm going to bring it back in. 79 00:04:52,990 --> 00:04:53,400 You do. 80 00:04:53,570 --> 00:04:55,120 While I'm pressing shift. 81 00:04:55,310 --> 00:04:56,070 OK. 82 00:04:56,390 --> 00:04:58,810 So this is the inverse square. 83 00:04:59,000 --> 00:05:00,080 It's very bright. 84 00:05:00,110 --> 00:05:07,320 And you start falling off your not is that the use of the fall off distance becomes redundant and use 85 00:05:07,320 --> 00:05:12,410 this here because the light is falling off and at certain point it will disappear of course. 86 00:05:12,420 --> 00:05:17,760 So if you play with the fall off distance is not going to make any difference at all. 87 00:05:17,760 --> 00:05:20,740 Now it's up to you how do you want your life to be. 88 00:05:20,760 --> 00:05:23,380 You have this moth with the fall off distance. 89 00:05:23,520 --> 00:05:30,240 OK I'm going to give it some or you have the clamped or inverse square if you like where it's very bright 90 00:05:30,240 --> 00:05:39,590 here and it's falling off well it's option here even the non has its own applications depending on the 91 00:05:39,590 --> 00:05:46,750 visual effects and the motion graphics is that you want to create most of the time they ask me OK how 92 00:05:46,750 --> 00:05:48,670 do I create a disco light. 93 00:05:48,850 --> 00:05:50,430 Well this is the disconnect. 94 00:05:50,440 --> 00:05:53,870 As simple as this fact I'm going to take the fall off down. 95 00:05:54,220 --> 00:05:58,020 OK and let's take the cone down. 96 00:05:58,330 --> 00:05:59,230 And here you are. 97 00:05:59,410 --> 00:06:01,390 You have it kind of does collide. 98 00:06:01,390 --> 00:06:02,460 Of course you need to adjust. 99 00:06:02,470 --> 00:06:06,050 I'm just showing you this is a nice disco light. 100 00:06:06,070 --> 00:06:08,500 It moves around depending where you want it. 101 00:06:08,740 --> 00:06:10,590 And you can change the colors. 102 00:06:10,590 --> 00:06:16,860 Put them all kind of close and you have very nice light there are very many movies that there were no 103 00:06:16,860 --> 00:06:24,020 disco lights and they added the disco lights in after effect and really you can get fantastic results. 104 00:06:24,100 --> 00:06:24,760 OK guys. 105 00:06:24,940 --> 00:06:28,730 So this is about the fall of the radius and the fall of distance. 106 00:06:28,780 --> 00:06:34,840 I hope you got the concept 100 percent and I hope you will use it all the time and make the right decisions 107 00:06:35,140 --> 00:06:37,420 of what kind of fall off you want. 108 00:06:37,420 --> 00:06:38,050 Thank you. 109 00:06:38,100 --> 00:06:39,390 I will see you in the next election.