Easy way of doing fade in & outs

[John Wallace]

Hi 

I am set up basic show with Qlab V3 where I need display loops of JPG images. Is there a easy way of fading / dissolving images with out building fade in and out for each image? 

Thanks 

John 

[Christopher Ashworth]

Hi John,

Welcome to the list. To answer your question, there is not a different way for just a sequence of still images; the fade in and out would be necessary.

It may help to use things like copying and pasting a group of cues as a template, to make it faster to build.

[Joshua Langman]

Depending how you do it, you never need a fade in.

My preferred method: start the next image in a layer under the previous image at full opacity; auto-continue to a fade cue that fades out and stops the first image.

[Kelly Schmidt]

Visit the scripting page. I can't live without script cues. Create one that makes a fade out from a selected cue and a fade out from a selected cue. Put them on hot keys. It'll save you a lot of time.

[Angus Turner]

If it is just a image slideshow you might be better off just creating a
Powerpoint or similar. QLab is a great solution for many things, however a
basic image slideshow is not one of these.

Thanks
Angus Turner
angus...@gmail.com

On Sun, Aug 18, 2013 at 12:04 PM, Kelly Schmidt <kellys...@gmail.com> wrote:

Visit the scripting page. I can't live without script cues. Create one that makes a fade out from a selected cue and a fade out from a selected cue. Put them on hot keys. It'll save you a lot of time.

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[micpool]

On Sunday, August 18, 2013 2:52:58 AM UTC+1, Joshua Langman wrote:

Depending how you do it, you never need a fade in.

My preferred method: start the next image in a layer under the previous image at full opacity; auto-continue to a fade cue that fades out and stops the first image.

Or some might say it was easier to never do a fade out.  Just fade the new image in, which will default to the top  layer and stop the underlying image when the incoming reaches 100 percent.

Mic

[John Wallace]

Where do I find more info on scripting?

[John Wallace]

 Has anyone got a script for this?

[Kelly Schmidt]

Sure thing

http://wiki.figure53.com/QLab+Scripts+and+Macros#x-Fades

As well as many other quality scripts.

[Kelly Schmidt]

Of course you'll have to thumb through this, figure out what the scripts do and choose the best one (I would do "create fade v2) then change things like "set audio" to "set opacity"

Hope that's enough to get you going. I don't have access to my scripts right now.

[Joshua Langman]

"Or some might say it was easier to never do a fade out.  Just fade the new image in, which will default to the top  layer and stop the underlying image when the incoming reaches 100 percent."

But that required three cues instead of two. The advantage to starting under and fading out the upper layer is the stop cue can be incorporated into the fade cue, saving you one cue each time.

[Andy Dolph]

I do this rather frequently, and if I only have a few slides that are going to repeat then I do it in Qlab.  If it's more then a handful of slides then I use Keynote (much better quality then PowerPoint and you can really control the resolution).  What I do (assuming I want the slideshow to loop) is put the same image as the first and last slide then I set the duration I want for all the slides EXCEPT the first and last - let's say that's 10 seconds per slide.  I set the first and last slide (which are the same image) to 5 seconds each with no transition into the first slide and out of the last one.

Then I export the whole thing as a quicktime movie which I can run in Qlab and loop perfectly.  Then it's just one cue to fade in the slide show and let it run for as long as I want, then one cue to fade out the slideshow and stop it.

[Joshua Langman]

I've done that as well. Also, I've built slide shows in iPhoto, exported them as videos, and stuck them in QLab. A good way to quickly make some pretty sleek slide shows if you don't need to customize individual slide timings or animations too much. Just dump all the images in, choose a theme, and let iPhoto do its thing. You can even force it to match the total length of the show to a particular piece of music, which it will do by automatically adjusting the slide times to make it fit.

[Willo]

Both these methods assume you're not too fussy about the actual transition between the photos, allowing them to just uniformly overlap as the new image fades in (or the old one out).

Often the transition is better if you adjust the fade out time of the previous cue and the fade in of the new cue, dependant on the individual nature of the two images. Some images look great with a lot of lingering crossfade, others are better if you let it go almost to black before bringing the next one in.  Or closer to a snap fade off and on, like blinking. And you can play with the curve of the fade. Depends if you're a fussy bastard or not.

Cheers,

Craig

[Joshua Langman]

I'm offended that you don't think I'm a fussy bastard. :)

[Lucas Krech]

That can also be dealt with via single fade and fade curves. 

-L

*insert witty mobile device advertising here*

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