1 00:00:00.00 --> 00:00:01.08 - [Voiceover] All right, in this movie we'll begin 2 00:00:01.08 --> 00:00:03.03 the creation of what I consider 3 00:00:03.03 --> 00:00:05.05 to be a very fun real-world project, 4 00:00:05.05 --> 00:00:07.09 and that's the False Mobius strip. 5 00:00:07.09 --> 00:00:09.05 And what's so great about it is that 6 00:00:09.05 --> 00:00:11.02 it brings together the skills that we've learned 7 00:00:11.02 --> 00:00:13.02 over the course of the last three chapters. 8 00:00:13.02 --> 00:00:17.01 So obviously we have custom gradients a la chapter 22. 9 00:00:17.01 --> 00:00:19.06 We're gonna be creating the base ribbon 10 00:00:19.06 --> 00:00:23.00 using an object blend from chapter 23, 11 00:00:23.00 --> 00:00:25.03 and then we'll be weaving this ribbon 12 00:00:25.03 --> 00:00:28.09 in and out of itself using Live Paint. 13 00:00:28.09 --> 00:00:31.02 Now the reason I'm calling this a false Mobius strip 14 00:00:31.02 --> 00:00:33.09 as opposed to a real one is because 15 00:00:33.09 --> 00:00:36.01 when you're working with a real Mobius strip 16 00:00:36.01 --> 00:00:38.04 there is no absolute front or back side. 17 00:00:38.04 --> 00:00:40.08 And so let's say these cool stripes represent 18 00:00:40.08 --> 00:00:43.06 the front side of the ribbon, then a ribbon flips across 19 00:00:43.06 --> 00:00:47.02 to expose these warm stripes, which represent the back side, 20 00:00:47.02 --> 00:00:49.06 then we flip around to the front side once again 21 00:00:49.06 --> 00:00:52.05 and then we flip to the back, and so at some point 22 00:00:52.05 --> 00:00:55.00 there's a seam between the back of the ribbon and the front 23 00:00:55.00 --> 00:00:57.06 as we're seeing indicated right here. 24 00:00:57.06 --> 00:00:59.08 And so, in other words, if you were a little person 25 00:00:59.08 --> 00:01:03.04 walking along this surface, you could pass over 26 00:01:03.04 --> 00:01:06.02 each one of these six times, each one of these 27 00:01:06.02 --> 00:01:09.02 overlaps a total of six times, and you would cover the 28 00:01:09.02 --> 00:01:12.09 front and the back side of the ribbon all the way around. 29 00:01:12.09 --> 00:01:15.03 So it's one continuous surface. 30 00:01:15.03 --> 00:01:17.05 The thing is, if you go ahead and cut out 31 00:01:17.05 --> 00:01:20.02 this bright stripe right here all the way around, 32 00:01:20.02 --> 00:01:22.07 then you ruin the illusion and you end up 33 00:01:22.07 --> 00:01:25.02 with absolute front and back sides. 34 00:01:25.02 --> 00:01:27.01 And to understand how that works, 35 00:01:27.01 --> 00:01:28.09 I've created this diagram right here. 36 00:01:28.09 --> 00:01:31.07 The front side appears blue and the back side appears red, 37 00:01:31.07 --> 00:01:34.07 or if you prefer, we have a vice and a versa side 38 00:01:34.07 --> 00:01:37.01 right here, and so we start with the front, 39 00:01:37.01 --> 00:01:39.03 we flip around to the back, we see the front again, 40 00:01:39.03 --> 00:01:41.04 then the back side of the ribbon, then the front, 41 00:01:41.04 --> 00:01:44.06 the back, and then finally, we wrap around to the front. 42 00:01:44.06 --> 00:01:47.00 And so we have a total of one, two, 43 00:01:47.00 --> 00:01:50.04 three, four, five, six overlaps. 44 00:01:50.04 --> 00:01:53.02 It's still a continuous ribbon, it's just that 45 00:01:53.02 --> 00:01:55.08 it has a definite front and back side. 46 00:01:55.08 --> 00:01:57.06 And so the reason that we're gonna create 47 00:01:57.06 --> 00:02:00.04 this false Mobius effect as opposed to the real one 48 00:02:00.04 --> 00:02:04.01 is because this project is a little easier to conceptualize 49 00:02:04.01 --> 00:02:06.09 and it happens to be a lot of fun as well, 50 00:02:06.09 --> 00:02:11.01 as you'll find out starting in the very next movie.