I am currently running the new Tiger Touch Pro. I have 16 Mac250 entours.
I am having an issue creating a smooth figure eight shape that is ongoing.
In my previous pearl 2008 classic I was able to program this by using both the Pan and Tilt shape. Then I ran the tilit at 100% (280 degrees) and decreased the pan % until it matched 280 degrees.
Unfortuntly when I plug in the same values in Titan the lights do not run smooth. The lights pan and tilt run at diffrent size and speeds and cause the light to stop in the air before moving again.
Any ideas ?
Smooth Pan and Tilit Shapes
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rgerwatowski
- Posts: 12
- Joined: 07 Jul 2013, 19:25
Re: Smooth Pan and Tilit Shapes
A significant difference between Titan and Classic shapes is that Titan shapes can modify +/- 255 whereas Classic could only do +/- 127. In the simplest example this means that a tilt shape with origin 50% and size 100% will spend half of its life stuck at the two ends of travel in Titan. For a smooth shape that runs uses the full movement of a fixture you would instead use origin 50% and size 50%. In Classic 100% size would give the full movement. This is probably why it is not working as you expect.
The shape that you end up with largely depends on the origin and whether the tilt transitions the 50%/straight area. With a moving head if you have a tilt origin of 50% (ie. straight down when hung traditionally vertically from a truss) then simply appying a circle shape will create figure of eight. Usually this is something that is not intentional!
However, if you want to create a figure of eight where the fixture never goes beyond the 50% mark, for example always pointing towards a downstage edge or audience, then you would use separate pan and tilt shapes where the pan runs at twice the speed of the tilt. In this case you should use the pan and tilt 'swing' shapes as these use a sinewave modifier which is smooth. The tilt origin should be set at a halfway point - in theoretical terms we could say this is 75%. The tilt size should be set so that it does not try to go beyond 100% or 50% at its extents. Usually the best way to set these is to start with a slow speed in case you are misled by fixture capabilities. Once you've set that then create a pan swing with the required width. Then set the speed of the tilt to be half that of the pan shape. You can use the [Edit] button to select which shape you are adjusting. To get accurate speeds it is easiest to type them in with the numeric pad and then select the relevant softkey. For example set tilt to 3sec and pan to 6sec. It is important that the speed of the shape is within the capabilities of the fixture.
Note that the shape generator does not synchronise shapes at the point when you create them in the programmer. To see the actual phasing you can record the cue, clear and include the cue. This will place the shapes back in the programmer in phase. If at this point you find it is not giving a figure of eight despite the speeds being correct then it will be a phase offset issue. Make sure you are adjusting just one of the shapes and change the phase offset. This will almost certainly need to be a multiple of 90 degrees (ie. 90/180 or 270). Again, typing them numerically is the way forward.
The shape that you end up with largely depends on the origin and whether the tilt transitions the 50%/straight area. With a moving head if you have a tilt origin of 50% (ie. straight down when hung traditionally vertically from a truss) then simply appying a circle shape will create figure of eight. Usually this is something that is not intentional!
However, if you want to create a figure of eight where the fixture never goes beyond the 50% mark, for example always pointing towards a downstage edge or audience, then you would use separate pan and tilt shapes where the pan runs at twice the speed of the tilt. In this case you should use the pan and tilt 'swing' shapes as these use a sinewave modifier which is smooth. The tilt origin should be set at a halfway point - in theoretical terms we could say this is 75%. The tilt size should be set so that it does not try to go beyond 100% or 50% at its extents. Usually the best way to set these is to start with a slow speed in case you are misled by fixture capabilities. Once you've set that then create a pan swing with the required width. Then set the speed of the tilt to be half that of the pan shape. You can use the [Edit] button to select which shape you are adjusting. To get accurate speeds it is easiest to type them in with the numeric pad and then select the relevant softkey. For example set tilt to 3sec and pan to 6sec. It is important that the speed of the shape is within the capabilities of the fixture.
Note that the shape generator does not synchronise shapes at the point when you create them in the programmer. To see the actual phasing you can record the cue, clear and include the cue. This will place the shapes back in the programmer in phase. If at this point you find it is not giving a figure of eight despite the speeds being correct then it will be a phase offset issue. Make sure you are adjusting just one of the shapes and change the phase offset. This will almost certainly need to be a multiple of 90 degrees (ie. 90/180 or 270). Again, typing them numerically is the way forward.
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