Izzy Map Globally over Many Scenes

  • Hi,

    I am running into a problem mapping globally over multiple scenes. I need to be able to set the mapping at the top of the show and have it carry over the projector actors in multiple scenes. 
    I have put my projector into a user actor, expecting adjustments within that user actor to adjust globally over many scenes, but that is not the case. This works great for multiple projectors in the same scene - adjusting one actor adjusts all of them, but when I switch scenes, that mapping is gone. 
    Thanks for your help

  • I just want to add:

    In the Izzy Map, I published all the output points. Then I added the new Set & Get Global Values actors. However, the set & Get global Value actors are not acting correctly - adjusting the output point values between scenes. Neither did a broadcaster/listener setup. 
  • Tech Staff

    Perhaps you can enter a support request, and one of us can look closely at your izzy file.


  • I use a activated background scene with projector and I send gpu video from each scene to the output scene with broadcaster/listener and it works perfectly.

    The only limitation is you cannot fade between scene but you can fade inside scenes.
    here a quick example


  • Hi All,

    anybody know if the bug liannemua discribed above is fixed? - i will have a mappingproject in may june and for shure i have to adapt it on different venues and realy would like to use the option to do global mappingchanges via user actor...

    ciao Bodo

  • Dear @liannemua and @bodo,

    I am quite sure this procedure works:
    1. Put Projector inside a User Actor
    2. Edit Izzy Map (do not "publish" any of the inputs.)
    3. Close User Actor
    4. Use User Actor throughout your show
    5. Later, if you edit the Izzy Map and choose "Save and Update All" when closing the User Actor, all the other actors will update.
    I used this technique yesterday for my show in London and it worked perfectly in v2.2.2\. When I edited one of the User Actors and chose "Save and Update All", all other instances of the User Actor updated to match.
    @liannemua is doing something different. He is publishing the modulation inputs for the corners, and then attempting to use the Global Value actors to update them. This we will need to investigate. But, I feel quite sure that if you do the procedure as I described above, it will work.
    Best Wishes,

  • Dear Mark,

    thanks a lot - good to hear it is working!

  • Beta Gold

    I did an even simpler things two years ago. I just did a mapping in one scene and duplicated the projectors over all the scenes that needed it. @Mark Do we need a user actor like you did now?


  • Dear @Armando and All,

    You don't _have_ to use a User Actor as described above, but it certainly simplified the process for me. In the end, I can see that what we need is a sort of "global mapping library' or something like that, where the maps/slices are stored globally and just automatically change everywhere whenever you edit one instance.
    For now, I'd say use the User Actor technique mentioned above.
    Best Wishes,

  • @liannemua ,

    If you haven't already, file a bug report and give us your .izz file. The team will work with you to clarify the problem so I can fix it.
  • Beta Platinum

    That sounds super comfortable with the user actor. Should save a lot of time.

  • Beta Gold

    I don't even use a user actor. I just copy the projector(s) to each scene that needs mapping... Maybe it is better to have a user actor because once you update the mapping in one scene you don't even have to update it in all scenes...

  • Tech Staff

    User actors are the answer to 90% of all programming issues. :)

  • @Mark : You wrote "In the end, I can see that what we need is a sort of "global mapping library' or something like that, where the maps/slices are stored globally and just automatically change everywhere whenever you edit one instance."
    I don't really see the point of this as the user actor solution works perfectly. The only thing is that you have to create it so maybe that's why you mention this ?

  • Dear Stephane_Morisse,

    Well, this global slice idea is apparently in other media server software. Someone who works with such software (as well as Isadora) requested it when I received feedback from him.
  • Tech Staff

    2 things will make all the difference IMHO Projectors allowing virtual output, so a mapped texture can be fed into another projector and mapped again.. ect... And mapping added to the stage setup (final level mapping) This will allow endless creative possibilities and a convenient global per stage map.

  • Tech Staff

    Here is an example similar to the one @jhoepffner posted, but using a user actor for the IzzyMapped projector, and two others for the Set Global Values and Get Global Values actors. It has a handy little control panel too. This is just a demo/template using the Rectangle Mapper "slice", but I am also planning on making User Actor templates and demos for the Triangle, Composite Rectangle, Composite Triangle, Composite Circle, and Grid "slices" for personal use and can post them if anyone is interested in having them. Using this setup you can:

    - Crossfade between scenes.
    - Have multiple different scenes, or multiple projectors in the same scene, use the same mapping.
    - Make global adjustments to the mapping points without needing to go into IzzyMap (useful if you need/want to change mapping accurately while live and have it track across multiple scenes).
    - You can also just rename, save, replicate, and use the projector user actor by itself and follow @mark 's instructions to make changes inside IzzyMap and then "Save and Update All" to make the changes to all of your user actors of that name. (This is how I had been doing it for a show I did in June and December, but having the option to do it through global values couldn't hurt either :D.)
    There are comments inside the user actors in the demo with some more detailed info, should you want it.
    Hope this is useful,


  • Hi All, i`am working on a mappingproject and the save und update all function of the user actor is not working as expected i placed a movie player - projector and another user actor in to a user actor - do some changes on the mapping - but the problem is: not all the time the user actor show up the menu -save und update all- (if i close it) and i`am not able to store the changes on the mapping for several scenes - on the beginning i had the same user actor on a seperate scene and changed the settings there - this actor allways asked me if i want to update all but now also in this scene the user actor do not work as expected anymore??? any idea what could be the problem?

  • Dear Bodo,

    I think to analyze this we would need the .izz file and some specific instructions on how to open the User Actor, make a change, and see that the "Save and Update All" dialog does not show up. 
    I tested this just now in v2.2.2
    1) Created a User Actor with a Movie Player -> Projector
    2) Double-clicked the Projector and added a Triangle IzzyMap
    3) Closed User Actor, Choose "Save and Update All"
    Then I did several tests where I opened the User Actor and modified the IzzyMap. For me, in each case, the Save and Update All dialog box was shown as expected.
    If you want, you can send me the file in an email and tell me the exact steps you are taking where the Save and Update All dialog does not appear.
    Best Wishes,

  • I can confirm the observation Bodo made, but as it happened super rarely and I never was able to recreate it, i did not fill a bug report.

    But (maybe a hint for Mark) the changes made in this specific user actor took effect, but not in all the same elsewhere in the scenes, just like 'new instance'. The workaround for me was to open the actor again, dis- and reconnect any of its internal connections. After that on closing the dialog appeared and everything worked as expected.