Slices Rotate 90 when try to angle or fan

Home English Slices Rotate 90 when try to angle or fan

Pyro_7100000 2024-08-18 12:32:00
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  • Pyro_7100000
    Joined: Apr 2019
    Posts: 14
    Location: Birchington, England, United Kingdom
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    Is there and reason that slices rotate themselves 90 when you angle them? By angle I mean manually adjusting the tilt, or using the fan command. Having to go in and change the rotation of them is really annoying every time.

    DrewFinale
    Joined: Dec 2019
    Posts: 557
    Location: United States
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    Hi Pyro_7100000, There is a reason for this behavior, granted, I fully appreciate that the explanation probably won’t make it any less annoying. Here you go:

     

    The angle convention in Finale 3D is designed to handle not only fireworks, but all types of SFX including moving head lights. Doing this requires three angles, Pan, Tilt, and Spin.

     

    Tilt is the angle from vertical, but tilt is not just left and right. In order for tilt to angle an effect left or right, a 90 pan angle has to be introduced. This is the reason cakes swing around when tilted left or right. The same thing is happening when you angle a comet, mine, shell, and every other type of effect, you’re just only noticing with cakes because they’re not rotationally symmetric. That is, a comet looks essentially the same no matter how it’s rotated but a fanned cake or slice does not.

     

    To counter act the undersired side effect of the 90 degree pan, you need to employ the third angle, Spin. The Spin angle is the rotation around the trajectory of the effect. For example, imagine you had a single shot comet in a holder and you rotated the comet so the label was facing a certain direction without changing the trajectory angle – that’s spin. When you angle a cake left or right, a 90 degree pan is added. To fix the orientation of the cake, add a -90 degree spin.

     

    To learn more, check out: https://finale3d.com/video/mastering-angles-pan-tilt-spin/

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