Thanks for that Elvis, its helped.
However I still dont quite get it Im afraid to say.
The image I want to dissolve is my background image that covers the entire stage, so I load that up.
I then choose a suitable particle style, make it an area emitter, change it to “get colour from layer” and cover the entire stage.
I want the image to remain static and intact for say 10 frames, then dissolve over say another 20 frames.
The part I dont understand is how I can display the image, then dissolve it?
Should I be setting the first particle keyframe at frame 10, then another at frame 30, and alter the visibilty settings in between?
Sorry to be a pain in the ass here as Im sure its a very basic effect to achieve. Would you have any links that contain sample PI files that do what Im trying to achieve that I can simply load up and analyse?
Many thanks.