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

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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


You gave me something to work with