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  • 1.  Visual Logic Failing for Preview Only

    Posted 02-23-2022 12:33
    I have built a rather extensive web of visual logic that behaves perfectly when in layout mode and when taken online. However, the preview seems to only be using the visual logic up to a certain point, and then behaves as if portions of it are disabled (comparison below, VO on the left, Preview on the right)...


    While troubleshooting I moved tabs into different orders and this would cause different portions to not function correctly. Triangles are fixed, but spacing still fails (image below)...

    Again, shuffled the VL tabs and different portions fail in preview only...

    Any insight would be greatly appreciated!

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    Joshua Coats
    Newsroom Artist Supervisor
    Newsy
    Atlanta United States
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  • 2.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 12:37
    btw... even the animated preview will play it out correctly. It's only the initial still preview that fails it seems.


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    Joshua Coats
    Newsroom Artist Supervisor
    Newsy
    Atlanta United States
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    Original Message


  • 3.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 13:04
    Hey,

    The preview only renders one frame which is why you can see errors in the preview that are hidden when it plays back. 

    I have had this before and I found changing the order of my tabs of visual logic can solve this issue.

    It's worth noting that visual logic renders the tabs from left to right in order.

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    Simon Redmile
    Senior Graphic Programmer & Designer
    Ross Video
    Bristol United Kingdom
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    Original Message


  • 4.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 13:24
    Hi Simon,

    Okay, the preview only renders one frame, understood. Still not sure I'm following why I'd be seeing errors in Preview but not Online.

    And yes, changing the order of the tabs produced different Preview errors, as pictured, but didn't affect Online.

    I'm wondering why my VL is only failing for the Preview. Viewport and Online behave perfectly.

    ------------------------------
    Joshua Coats
    Newsroom Artist Supervisor
    Newsy
    Atlanta United States
    ------------------------------

    Original Message


  • 5.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 13:28
    Is there perhaps a block/operation limit for preview? And I just have too many operations going on? And perhaps that limit is different/doesn't apply for Online rendering?

    Worth noting, there are no scripts on my scene. I've run into conflicts there before.

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    Joshua Coats
    Newsroom Artist Supervisor
    Newsy
    Atlanta United States
    ------------------------------

    Original Message


  • 6.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 13:33
    There's no limit as such, its just that you most likely have things dependant on other logic that is happening later, that's why you need to understand what is dependant on each other and have your tabs in the correct order.

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    Simon Redmile
    Senior Graphic Programmer & Designer
    Ross Video
    Bristol United Kingdom
    ------------------------------

    Original Message


  • 7.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 13:32
    Because not every task is getting completed within one frame. 

    Most likely you have visual logic that's dependent on other visual logic blocks. If the logic runs that needs other logic to be completed in order to function itself it cannot run. The reason why you don't see this when the scenes play is that visual logic runs continuously so that logic is then able to run because the dependant logic gets run after then when XPression tries again that logic is now complete to run the other logic so it is successful in playback but not in preview because it doesn't try again as its only rendering 1 frame.

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    Simon Redmile
    Senior Graphic Programmer & Designer
    Ross Video
    Bristol United Kingdom
    ------------------------------

    Original Message


  • 8.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 14:09
    Ah, okay, I think I see what you're getting at. In Viewport and Online you're saying Visual Logic runs for frame 1 and probably has the same errors, but by the time frame 2 runs VL has essentially "stacked" a new run and fixes some of the order errors that must be in my logic.

    Time to comb through a whole lot of blocks haha...

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    Joshua Coats
    Newsroom Artist Supervisor
    Newsy
    Atlanta United States
    ------------------------------

    Original Message


  • 9.  RE: Visual Logic Failing for Preview Only

    Posted 02-23-2022 14:15
    Yeah I didn't explain it too well but you've understood what I was getting at :)

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    Simon Redmile
    Senior Graphic Programmer & Designer
    Ross Video
    Bristol United Kingdom
    ------------------------------

    Original Message