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Animated wiping in GIMP

Sep 5, 2011, 15:41
Post: #1
Animated wiping in GIMP
I know how to create animated gifs (mostly) now I have a picture (PNG) created outside of GIMP that I would like to have wipe in from left to right. I have been beating my head against the screen trying to get this right. I cannot seem to do it. I have created a background layer (solid black), then:

import as layer (picture to wipe)
mask ( increasing about left visible per layer )
repeat

it keeps giving me a broken gif.

If I open the original picture

duplicate
mask
repeat

it works.

but the results are not that what I was hoping for. I would like to have a solid black for 1 second then have the image appear incrementally. I would love to hear if anyone has an idea. I have attached the png.


Attached File(s) Thumbnail(s)
   

[Image: 6216880253_3c00e6165e.jpg]

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Sep 5, 2011, 16:10
Post: #2
RE: Animated wiping in GIMP
In the first case what do you call "broken", and in the second what di you actually get (post pic) and what were you expecting?

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Sep 5, 2011, 18:54
Post: #3
RE: Animated wiping in GIMP
(Sep 5, 2011 16:10)ofnuts Wrote:  In the first case what do you call "broken", and in the second what di you actually get (post pic) and what were you expecting?

Thanks for the reply. I have created a new png, xcf, and made a short video of the steps I took. Maybe you can find an error there.


Attached File(s) Thumbnail(s)
   

.xcf  Untitled.xcf (Size: 623.6 KB / Downloads: 60)

[Image: 6216880253_3c00e6165e.jpg]

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Sep 5, 2011, 19:47
Post: #4
RE: Animated wiping in GIMP
In the video I don't see you opening the GIF.

I can save a GIF from your XCF by just saving as GIF and asking for animation. I can also use the "optimize for GIF", and it also works. To set the delay for frames put the frame delays in ms and in parentheses in the layer name (if you load my attachment you will have a good example since Gimp generates the proper names automatically in this case)

I took the liberty to enhance you image a bit by 1) adding more frames, and 2) using a transparency gradient instead of a clear cut (though I didn't overdo it, you can do better).




[attachment=638]

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Sep 6, 2011, 06:09
Post: #5
RE: Animated wiping in GIMP (SOLVED - but not in Finder or Safari on Mac OS X Lion]
(Sep 5, 2011 19:47)ofnuts Wrote:  In the video I don't see you opening the GIF.

I can save a GIF from your XCF by just saving as GIF and asking for animation. I can also use the "optimize for GIF", and it also works. To set the delay for frames put the frame delays in ms and in parentheses in the layer name (if you load my attachment you will have a good example since Gimp generates the proper names automatically in this case)

I took the liberty to enhance you image a bit by 1) adding more frames, and 2) using a transparency gradient instead of a clear cut (though I didn't overdo it, you can do better).

You will never believe this. I did not open it, because it was (when not showing a preview in the finder, not opening in safari. I have MacOSX Lion. In safari, I cannot see your gif as well in your post. However, having full trust in the fact that you would not put a broken gif in the forum, I loaded it in firefox and -- what do you see there, it works. I then opened my "broken gif" in firefox, and it works there as well. So, GIMP is not broken, but MacOSX Lion and Safari 5.1.

What did you mean about transparency gradient? The effect I am looking for, I am sure, will require a lot of frames, as I am trying to get a good aftereffects type movement here. I want to add a gasuian blur (for lack of a bette guess), or something to create a sparkle effect at the edge of each frame to create a burn in on the png. I will then later compose a mov file out of this for use in screen casting. I am sure that this is a horrible misuse of GIMP, but for the lack of a --maybe-- more appropriate (free open-source) tool for creating animations, I have reached to this very good tool to get the best results possible.

I saw a great video in Japaneese (too bad I can't read it) that did a similar effect which was very fluid, when not exactly what I wanted but on the best road!

Thanks again for your help in animation with GIMP! If you like, let us continue this discussion here, if you like! I find the possibilities here to be really great! And, I will be producing a video of this process when satisfied with the results, to give back to the community!

[Image: 6216880253_3c00e6165e.jpg]

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Sep 6, 2011, 11:34 (This post was last modified: Sep 6, 2011 11:37 by ofnuts.)
Post: #6
RE: Animated wiping in GIMP
(Sep 6, 2011 06:09)diginin Wrote:  What did you mean about transparency gradient? T
The difference between this (clear cut):

[attachment=639]

And this (transparency gradient/fade):

[attachment=640]

Well done, this would smooth the transition between frames and allow a lower framerate.

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Sep 6, 2011, 13:11
Post: #7
RE: Animated wiping in GIMP
Here is my finished product. I guess I could have added even more frames to be a little more smooth. What do you think?

   

[Image: 6216880253_3c00e6165e.jpg]

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Sep 6, 2011, 13:54 (This post was last modified: Sep 6, 2011 13:54 by ofnuts.)
Post: #8
RE: Animated wiping in GIMP
The move of the light source is a bit shaky, so I agree about the number of frames, but this is otherwise extremely well done. You should have posted there Smile

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Sep 6, 2011, 14:54
Post: #9
RE: Animated wiping in GIMP
(Sep 6, 2011 13:54)ofnuts Wrote:  The move of the light source is a bit shaky, so I agree about the number of frames, but this is otherwise extremely well done. You should have posted there Smile

I will. On your comments. I have an issue trying to figure out how to best go from gif to movie format. Any ideas there? I just recorded the screen, cropped, and went on with life. I would be grateful for tips!

[Image: 6216880253_3c00e6165e.jpg]

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Sep 6, 2011, 16:06
Post: #10
RE: Animated wiping in GIMP
(Sep 6, 2011 14:54)diginin Wrote:  
(Sep 6, 2011 13:54)ofnuts Wrote:  The move of the light source is a bit shaky, so I agree about the number of frames, but this is otherwise extremely well done. You should have posted there Smile

I will. On your comments. I have an issue trying to figure out how to best go from gif to movie format. Any ideas there? I just recorded the screen, cropped, and went on with life. I would be grateful for tips!
No idea...

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Sep 6, 2011, 23:08
Post: #11
RE: Animated wiping in GIMP
thanks anyway!

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