Dissolves and dirctory scanner

oejvind's picture

This might be trivial but I haven't been able to figure it out.

How do I make a slideshow with dissolves? I've managed to make it cut between the images but I need it to dissolve.

Any ideas or something to point me in the right direction?

Best regards

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

usefuldesign.au's picture
Re: Dissolves and dirctory scanner

You need to do it with two billboards. The second billboard has the next image loaded. You fade them both by ramping the alpha value on a RGBA color patch as the Billboard colour. You can cross fade using linear or interpolation curves up to you.

To keep the whole thing rolling along you need either a flip-flop mechanism or an A/B set-up where once the cross fade is done, the new image that was faded-in on billboard 'B' is routed back to 'A' then A is switched back to a full white colour input and 'B' is switched to 0% alpha to be loaded with next image.

Also there are quite a few transition type Core Image processing patches like wipes and so on, they are a little more GPU intense but nothing to bother a recent mac of any description even at 1960x1280.

oejvind's picture
Re: Dissolves and dirctory scanner

Thanx

You gave me something to work with

:-)