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Home: Isadora: Performance: Scene Change - Pause

andrewnewy Novice Feb 10, 2008, 12:58 AM Post #1 of 7 (1635 views) Shortcut Scene Change - Pause Can't Post Hi, I've got a big theatre show I'm doing at the moment which has about 170 cues, over 4 screens (300 odd clips in all), and I figured the easiest way to deal with it is to setup a scene for each cue and then just cross fade between the scenes. All sound easy enough however I am finding there is a pause in the movie/scene that I'm fading from. I've tried using both the Jump actor & the activate scene actor and both are showing the same thing. Any ideas? Cheers Newy

Matt Novice Feb 10, 2008, 2:54 PM Post #2 of 7 (1617 views) Shortcut Re: [andrewnewy] Scene Change - Pause [In reply to] Can't Post Have you tried the "deactivate scene" actor with the "activate scene"actor?

andrewnewy Novice Feb 10, 2008, 6:35 PM Post #3 of 7 (1612 views) Shortcut Re: [Matt] Scene Change - Pause [In reply to] Can't Post Yep tried that. I've attached a pic of the Control setup I'm using and the Scenes setup that I'm trying to cross fade in/out of Essentially cue's would be triggered as follows 1. Scene active - with file in Movie player 1 on each projector 2. each projector cross fades to Movie player 2 at various intervals in the scene 3, Next scene activates and repeat. (This post was edited by andrewnewy on Feb 10, 2008, 6:37 PM) Attachments: Control Pict.png (85.4 KB)   Picture 7.png (135 KB)

Mark Coniglio TroikaTronix / Moderator Feb 18, 2008, 2:59 AM Post #4 of 7 (1569 views) Shortcut Re: [andrewnewy] Scene Change - Pause [In reply to] Can't Post More than likely the pause is caused by the act of loading the next movie. When quicktime loads a movie, there is a slight delay as it usually reads in the first half second of the clip to "buffer" it. Unfortunately, this causes a glitch. Now, you can prevent this by using the Video Preload actor to preload the clip before you activate it. The goal here is to do this just prior to loading the clip you need. In my shows, when this has caused a problem, I preload the clips for the next scene in my current scene... something like 5-60 seconds before. That being said, don't preload them all at the beginning of your show because that probably won't work. The "virtual memory" in OSX or Windows will see that the data isn't being used, and will swap it out to disk if you wait too long. If this happens, then the preload is essentially useless. There isn't really a way around this... So, preload in a timely fashion, and I think you'll be OK. I'm working on a feature that will automatically preload movies in a subsequent scene, based on the values in the Movie input of the movie player. For VJ type apps where you are changing the clip interactively, this doesn't make sense. But for shows where you know the clip you will play, I am sure this will be a welcome feature. Best, Mark - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Mark Coniglio / TroikaTronix Creator of Isadora

andrewnewy Novice Feb 18, 2008, 3:55 AM Post #5 of 7 (1564 views) Shortcut Re: [Mark Coniglio] Scene Change - Pause [In reply to] Can't Post Hi, Thanks Mark, I've been chatting with william in one of the other posts, What he suggested is to use macro's all in one scene, this approach has helped alot, as now I'm only seeing a pause of about 1/2 frames, which while isn't great, is acceptable. I did try preloading at one point, but it didn't seam to make any difference, (I was only test at that point, so only loaded 2 clips. But I might give it another shot now that we're plotted. Is there a maximum time clips can be left pre-loaded? reason being is the only time I have an issue is when we have a clip, or few clips playing, and then when I try and load the next clip is when I get the pause. I've currently got it setup: Clip 1 Playing On 'Go' - Set Movie Player 2 to on 0.3sec Inisiate the cross fade. I've attached a picture of what's inside the macro. starting the clip Playing just before I fade to it, certainly helps, But preloading the clips would probably only work if I could load, 3 to 4 clips in advance (which would be 5-10 Min) before they got played. I haven't had time to try it yet, but does Core Video help with is at all? Anyway the DIrector seams to be happy for the moment, but any further words of wisdom would be greatly appreciated! Also, just while I'm here (and sorry this is become a long post) but is there any way of 'sending' a Control Link # from within the patch? essentially emulating a 'Link' or a button press? Just looking for a neater solution for linking 116 macros to a Sequential trigger other than manually drawing line from each point! (call me lazy!) Attachments: Picture 11.png (78.5 KB)

jaimun Novice Mar 10, 2008, 2:26 PM Post #6 of 7 (1443 views) Shortcut Re: [andrewnewy] Scene Change - Pause [In reply to] Can't Post Hi, I have the same problem! I use mainly still pictures that I animate on Izzy, but I always get alittle "jump" after fading from one sce to another. I need different scenes, because they use different patches, not just different adjusts... I don't believe I can preload pics, I think they are preloaded at the beginning... Jaime Munárriz Ortiz

jhoepffner User Mar 19, 2008, 1:21 AM Post #7 of 7 (1165 views) Shortcut Re: [jaimun] Scene Change - Pause [In reply to] Can't Post Hello, I don't use stage to change movie, i prefere to use only 1 stage for all the show, using many projector and using intensity to mix between, so the preload is done and the change is smooth. I change stage only for really big changes. jhoepffner

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