16 - Fairings - A Basic Explanation¶
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so I'm going to talk to you about so I'm going to talk to you about fairings and exactly what they are just fairings and exactly what they are just fairings and exactly what they are just because there's sometimes a bit of because there's sometimes a bit of because there's sometimes a bit of confusion about them fairings also known confusion about them fairings also known confusion about them fairings also known as eases are the way that the curve as eases are the way that the curve as eases are the way that the curve between two points starts up maybe has a between two points starts up maybe has a between two points starts up maybe has a constant speed section and then slows constant speed section and then slows constant speed section and then slows down again if I show the velocity okay down again if I show the velocity okay down again if I show the velocity okay you can see it gets up to speed has you can see it gets up to speed has you can see it gets up to speed has constant speed and then slows down down constant speed and then slows down down constant speed and then slows down down again and this how much time it uses to again and this how much time it uses to again and this how much time it uses to get up to speed or slow down again is get up to speed or slow down again is get up to speed or slow down again is referred to as the Fairing and I can referred to as the Fairing and I can referred to as the Fairing and I can adjust these so for example if I go to adjust these so for example if I go to adjust these so for example if I go to my my my setups setups setups and adjust it for all my axes but I'm and adjust it for all my axes but I'm and adjust it for all my axes but I'm going to concentrate on the turntable going to concentrate on the turntable going to concentrate on the turntable here so if I select my turntable I can here so if I select my turntable I can here so if I select my turntable I can adjust this let's say I want to reduce adjust this let's say I want to reduce adjust this let's say I want to reduce the fairing here and there and apply it the fairing here and there and apply it the fairing here and there and apply it and it will adjust my curve or I can and it will adjust my curve or I can and it will adjust my curve or I can make increase one of them and keep the make increase one of them and keep the make increase one of them and keep the other one short apply so it spends a lot other one short apply so it spends a lot other one short apply so it spends a lot of time ramping up to speed has a of time ramping up to speed has a of time ramping up to speed has a constant speed section and then slows constant speed section and then slows constant speed section and then slows down down down again okay for twoo moves it's very again okay for twoo moves it's very again okay for twoo moves it's very simple okay it's when you get into more simple okay it's when you get into more simple okay it's when you get into more than two points it gets a little bit than two points it gets a little bit than two points it gets a little bit more complicated which is what I'm going more complicated which is what I'm going more complicated which is what I'm going to explain here so let's say I add a to explain here so let's say I add a to explain here so let's say I add a point let's say I'm going point let's say I'm going point let's say I'm going I'm going to add a I'm going to add a I'm going to add a point point point here here here okay now the way flare works is if you okay now the way flare works is if you okay now the way flare works is if you have more than two points it joins them have more than two points it joins them have more than two points it joins them up with what is called a spline a spline up with what is called a spline a spline up with what is called a spline a spline is effectively like a a very thin is effectively like a a very thin is effectively like a a very thin flexible piece of wood that go you bend flexible piece of wood that go you bend flexible piece of wood that go you bend to make it go through all the different to make it go through all the different to make it go through all the different points in the graph Okay so so we've got points in the graph Okay so so we've got points in the graph Okay so so we've got a point here point there and a point a point here point there and a point a point here point there and a point there and it puts a nice smooth curve there and it puts a nice smooth curve there and it puts a nice smooth curve through all of them and I now no longer through all of them and I now no longer through all of them and I now no longer have fairings if I adjust these apply it has made no apply it has made no difference because fairings only apply difference because fairings only apply difference because fairings only apply between two between two between two points or when there's a change in points or when there's a change in points or when there's a change in Direction and there is no changeing Direction and there is no changeing Direction and there is no changeing Direction here it goes from this point Direction here it goes from this point Direction here it goes from this point increases goes through this point keeps increases goes through this point keeps increases goes through this point keeps increasing and goes to the end increasing and goes to the end increasing and goes to the end okay now now if there is an actual change in now now if there is an actual change in Direction let's move this out the way Direction let's move this out the way Direction let's move this out the way slightly I'm just going to select it and slightly I'm just going to select it and slightly I'm just going to select it and drag this drag this drag this down okay down down here okay here okay here okay effectively I'm going effectively I'm going effectively I'm going down I reach this point and then I down I reach this point and then I down I reach this point and then I increase okay and you'll see now it's increase okay and you'll see now it's increase okay and you'll see now it's actually put fairings in it's got a actually put fairings in it's got a actually put fairings in it's got a fairing from this point to this point fairing from this point to this point fairing from this point to this point and a fairing from this point to this and a fairing from this point to this and a fairing from this point to this point so here it's increasing in speed point so here it's increasing in speed point so here it's increasing in speed constant speed section and then constant speed section and then constant speed section and then decreasing in speed similar here decreasing in speed similar here decreasing in speed similar here increasing in speed constant speed increasing in speed constant speed increasing in speed constant speed section and decreasing in speed and if I section and decreasing in speed and if I section and decreasing in speed and if I adjust adjust adjust this this this apply you will see apply you will see apply you will see that I have a longer constant speed that I have a longer constant speed that I have a longer constant speed section here and a longer constant speed section here and a longer constant speed section here and a longer constant speed section here and in between it actually section here and in between it actually section here and in between it actually comes to a stop here at this point okay comes to a stop here at this point okay comes to a stop here at this point okay now it does that because I have this now it does that because I have this now it does that because I have this check boox here okay this is called check boox here okay this is called check boox here okay this is called prevent curve rsal because I have an prevent curve rsal because I have an prevent curve rsal because I have an option I can either make it stop at this option I can either make it stop at this option I can either make it stop at this point okay and it point okay and it point okay and it will get up to this point reach it come will get up to this point reach it come will get up to this point reach it come to a complete stop change direction and to a complete stop change direction and to a complete stop change direction and accelerate in the opposite direction or accelerate in the opposite direction or accelerate in the opposite direction or I can force it to put a spline through I can force it to put a spline through I can force it to put a spline through them okay if I turn this them okay if I turn this them okay if I turn this off to what we call allow curve reversal off to what we call allow curve reversal off to what we call allow curve reversal apply it will actually fit a nice spline apply it will actually fit a nice spline apply it will actually fit a nice spline through all those points okay but you through all those points okay but you through all those points okay but you will will will see I just hide my see I just hide my see I just hide my velocity that to fit a spline through velocity that to fit a spline through velocity that to fit a spline through this point it actually comes this point it actually comes this point it actually comes down below it exceeds it which we call down below it exceeds it which we call down below it exceeds it which we call curv reversal or an overshoot A simpler curv reversal or an overshoot A simpler curv reversal or an overshoot A simpler word is actually overshoot but word is actually overshoot but word is actually overshoot but historically it's refer to as curve historically it's refer to as curve historically it's refer to as curve reversal and it overshoots here and then reversal and it overshoots here and then reversal and it overshoots here and then then goes through that point okay which then goes through that point okay which then goes through that point okay which might which actually looks much nicer might which actually looks much nicer might which actually looks much nicer because it never really appears to come because it never really appears to come because it never really appears to come to complete stop although here it does to complete stop although here it does to complete stop although here it does it effectively does come to complete it effectively does come to complete it effectively does come to complete stop because it's changing direction it stop because it's changing direction it stop because it's changing direction it never if you run the move never quite never if you run the move never quite never if you run the move never quite looks like it it looks like it does one looks like it it looks like it does one looks like it it looks like it does one continuous pass whereas if you allow C continuous pass whereas if you allow C continuous pass whereas if you allow C if you prevent curve reversal whereas if if you prevent curve reversal whereas if if you prevent curve reversal whereas if you prevent curve you prevent curve you prevent curve reversal reversal reversal apply okay it actually will appear when apply okay it actually will appear when apply okay it actually will appear when the turntable moves like it does come to the turntable moves like it does come to the turntable moves like it does come to a complete stop there and then change a complete stop there and then change a complete stop there and then change direction unless this is a very short direction unless this is a very short direction unless this is a very short stop for example you could shorten these stop for example you could shorten these stop for example you could shorten these up quite a bit apply and it would spend up quite a bit apply and it would spend up quite a bit apply and it would spend less time being stationary here and less time being stationary here and less time being stationary here and spend more time being at constant spend more time being at constant spend more time being at constant speed okay so this is what happens when speed okay so this is what happens when speed okay so this is what happens when you have more than two you have more than two you have more than two points now you might be wondering what points now you might be wondering what points now you might be wondering what happens if you change CH these fairing happens if you change CH these fairing happens if you change CH these fairing percentages to percentages to percentages to zero so if I change that to zero and zero so if I change that to zero and zero so if I change that to zero and that to that to that to Z and Z and Z and apply apply apply okay what happens is that effectively okay what happens is that effectively okay what happens is that effectively we're saying at this point there is no we're saying at this point there is no we're saying at this point there is no time to ramp up as soon as it starts it time to ramp up as soon as it starts it time to ramp up as soon as it starts it should already be at the right speed and should already be at the right speed and should already be at the right speed and it's a constant speed section now it's a constant speed section now it's a constant speed section now physically it can't do that when it gets physically it can't do that when it gets physically it can't do that when it gets to this point because you can't to this point because you can't to this point because you can't instantly change speed okay so it ramps instantly change speed okay so it ramps instantly change speed okay so it ramps up nicely to this one and then goes off up nicely to this one and then goes off up nicely to this one and then goes off and then at this point it also has a and then at this point it also has a and then at this point it also has a constant speed section at the end okay constant speed section at the end okay constant speed section at the end okay and what it has to do is before the move and what it has to do is before the move and what it has to do is before the move starts at frame zero before frame zero starts at frame zero before frame zero starts at frame zero before frame zero the turntable will actually go backwards the turntable will actually go backwards the turntable will actually go backwards ramp up to speed speed up so that when ramp up to speed speed up so that when ramp up to speed speed up so that when it hits frame zero it's exactly at that it hits frame zero it's exactly at that it hits frame zero it's exactly at that speed and will carry on at that constant speed and will carry on at that constant speed and will carry on at that constant speed and then here it'll be at constant speed and then here it'll be at constant speed and then here it'll be at constant speed in the other direction and when it speed in the other direction and when it speed in the other direction and when it gets to frame 100 it'll have to do gets to frame 100 it'll have to do gets to frame 100 it'll have to do what's called a post roll and it will what's called a post roll and it will what's called a post roll and it will roll past that position but slow down so roll past that position but slow down so roll past that position but slow down so that during the move from frame zero to that during the move from frame zero to that during the move from frame zero to 100 it'll be exactly as is shown in the 100 it'll be exactly as is shown in the 100 it'll be exactly as is shown in the graphs with a constant speed section graphs with a constant speed section graphs with a constant speed section here and a constant speed section there here and a constant speed section there here and a constant speed section there might be simpler to see it with just two might be simpler to see it with just two might be simpler to see it with just two way points way points way points so if I delete this one okay you'll see effectively my one okay you'll see effectively my velocity my speed is constant throughout velocity my speed is constant throughout velocity my speed is constant throughout okay so as I move from frame zero at 25 okay so as I move from frame zero at 25 okay so as I move from frame zero at 25 frames per second to frame 100 which is frames per second to frame 100 which is frames per second to frame 100 which is 10° it's going at 22° per second as 10° it's going at 22° per second as 10° it's going at 22° per second as shown on the graph and it will continue shown on the graph and it will continue shown on the graph and it will continue doing that throughout but to get to that doing that throughout but to get to that doing that throughout but to get to that speed at the start and the end it'll do speed at the start and the end it'll do speed at the start and the end it'll do a pre-roll here and a post roll at the a pre-roll here and a post roll at the a pre-roll here and a post roll at the end in fact if I remove this you can see end in fact if I remove this you can see end in fact if I remove this you can see it when I run the move so for example it when I run the move so for example it when I run the move so for example I'm going to put into robot fast forward I'm going to put into robot fast forward I'm going to put into robot fast forward run okay it's telling me my focus is not run okay it's telling me my focus is not run okay it's telling me my focus is not enabled that's fine going to go to the enabled that's fine going to go to the enabled that's fine going to go to the start okay and now if I press shoot start okay and now if I press shoot start okay and now if I press shoot you'll see here it'll say pre-rolling you'll see here it'll say pre-rolling you'll see here it'll say pre-rolling when it's at frame zero then it'll run when it's at frame zero then it'll run when it's at frame zero then it'll run rapidly to the other end and at frame rapidly to the other end and at frame rapidly to the other end and at frame 100 it'll say post rolling where the 100 it'll say post rolling where the 100 it'll say post rolling where the turntable will be slowing down again turntable will be slowing down again turntable will be slowing down again shoot pre-rolling shoot pre-rolling shoot pre-rolling shooting and at the end post rolling