I am looking for a way to reverse frame sequence during production of an animation. I have tried the "Frame Sequence Reverse" in GAP but it only gives me the option to reverse 3 to 5 frames. And that doesn't work either. Anyone know how to do this? And does anyone know where to find a manual for GAP? I'm having some other issues but can't seem to find any up-to-date references.

Thanks.

I don't know if this helps but under Layer > Stack > Reverse Layer Order, but this isn't Gap so it might not be what you are asking.

so

Gap had no changes from long (except then to mantain compatibility) so the official doc and a a good tutorial that i included in the zip of GAP -2.6 are still up-to date,
, i have internet problems now, so i can't get the exact link but is somewhere on http://www.deviantart.com (search for "photocomix_resources" "GAP")

On http://www.gimptalk.com you may found a lot of good tuts (see on the tutorial board the tut index)



If doesn't work should be because you have no any frame:
don't confuse layers with frames, frames may have several layers but layers are no frames

GAP is for frames based animation is not much useful for layer based animation-

To clear the point a GIF is a example of layer based animation,frames are series of progressivly numbered images ...images not layers

Thanks guys.

Molly that worked great and is really easy to implement into an animation. Kudos to you.

Photo, thanks for that explanation. I understand it much better now.

If the script from Molly helped, my guess was correct

For layer animation search the scripts posted by Fencepost on Gimptalk, he emulated in that scripts many GAP tools but adapting to layer animation

for the rest as far i know GAP has only 3 plugin useful for layer animation
1 Filters/Filter all layers
2 Video/split image in frames (to convert layers in frames) and its opposite "Frames to Image"

When you create a new animation in GAP, GAP names the animation layers, "Frame." In fact when you bring the GAP layers into an animation you use Video > Frames to image.

Those frames (layers) are reversible using Layer > Stack > Reverse Layer Order.

The Frames (layers) in these images are from an animation I created in GAP.

The first one is regular order, the second where I reversed the order.

Gap may export layers as frames, and viceversa,still layers and frames are 2 very different thing

For animation often is needed that each frame has several layers, as example

layer 1 a train
layer 2 the sun
layer 3 a sky
layer 4 the bg

so i may show the train moving and the passing of the time from day to night

there GAP is very useful because may work only on the first layer of each frames, as example to move the train of x pixels on each frame, and may work only on the second layer as example to move the sun down, and then on the third to darken the sky

so the result would be a train moving whith the BG simulating the sun going down and the sky
coming darker and darker, result that would be much more difficult to obtain with a layer based animation (the problem will be not moving the train but simultaneusly changing the sun position and darkening the sky )

just to clear GAP work well with layers BUT layers of frames, not well with layers of a single image.

but the end the result may be well saved as a layer animation (gif or apng ) even if for more advanced animation may be better save in a video format or convert to flash

Also because animation of a large image saved as gif may get a gigantic file size (as a few GB) and would takes age to load, while a video file would be smaller of higher quality and optionally with a soundtrack

I see. You were talking about a video file.