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GIMP/GL QuestionsAnimate along path (Showcase | Slideshow)

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RJKD

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Animate along path

Post#1 by RJKD » 01 Jul 2017, 17:22


Ok, I've finally got GAP working, there was nothing wrong with it, it was me not understanding the directory path it creates, however...
I was following a tutorial at http://www.gimptalk.com/index.php?/topi ... -tutorial/ as a step toward learning how to do something a bit further down the line.
I learned how to 'close' a path in straight line by closing back on the first anchor point (I didn't know that), however, what I can't achieve is to get the animated object to return along the path, in other words it goes only from right to left, I think I've checked all the settings correctly. The 'grab path' function shows positive. This may be an 'older' way of achieving my desired outcome, if anyone has any suggestions that could help I would be most grateful.
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Post#2 by Ella » 01 Jul 2017, 17:37


RJKD, there are some parts of GAP who do work.
I made some animations myself in the past.
But the animation of the "spinning coin" can't be made completely as in the tutorial.
Here's another link with an animation I once made.

http://www.gimptalk.com/index.php?/topi ... orial-set/

My biggest problem is that English isn't my native language.
The explanation of many tutorials is too difficult for me to understand, too technical.
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Post#3 by Pat625 » 01 Jul 2017, 21:53


RJKD: You can move something and back without GAP. I found a video that shows you how with Iwarp. It is easy to follow. Now if you have only a few frames, duplicating the frames and placing them to bring the item back is easy. If you have many, such as moving along a path, I suggest that you use a script written at my request by Tin. It copies your layer stack, reverses the order and places it on top of your original stack. Saves a lot of duplicating. Just remember, which ever way you use, have only one beginning layer and only one last layer or you will get pauses or jerks with playback.

The video: Gimp 2.8 Tutorial Animated Text https://www.youtube.com/watch?v=KkX18lqXjYw Hope this applies to what you are doing.

Tin's script viewtopic.php?f=3&t=559t: Reversed layer copy stack
Graechan also revised one he had done earlier: Add inverted layer stack to top
If you look in our tutorials section I discussed the reverse order script with our animated map folding script as you have several layers and time consuming to keep duplicating all of them. viewtopic.php?f=10&t=557

I'm sure that there are other ways to do this also, so someone may have a better way. I just can't get GAP to work. What version of GAP and GIMP are you using that you feel is working correctly?

FencePost also has a script that animates a moving object I'll try to find it. Does not use GAP.
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Post#4 by Ella » 02 Jul 2017, 09:57


RJKD wrote:
01 Jul 2017, 17:22
Ok, I've finally got GAP working, there was nothing wrong with it, it was me not understanding the directory path it creates, however...
I was following a tutorial at http://www.gimptalk.com/index.php?/topi ... -tutorial/ as a step toward learning how to do something a bit further down the line.
I learned how to 'close' a path in straight line by closing back on the first anchor point (I didn't know that), however, what I can't achieve is to get the animated object to return along the path, in other words it goes only from right to left, I think I've checked all the settings correctly. The 'grab path' function shows positive. This may be an 'older' way of achieving my desired outcome, if anyone has any suggestions that could help I would be most grateful.
RJKD, I followed the tutorial from your link and became the same result as you.
The animation goes from right to left, but not from left to right.
I don't think we did something wrong.
It's just, GAP doesn't work that good any more. I had a few questions on Gimp Chat on that matter.

Again I followed the tutorial I put in my link, also using GAP.
The result I got there was the right one.

Well, an animation can also be done without GAP as shown by Pats links.
It's only a bit more time consuming :)

But when GAP doesn't work, it's frustrating :hammer_head: :twisted: :)
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Post#5 by RJKD » 02 Jul 2017, 14:29


Gimper, Ella and Pat, thankyou all so much for your suggestions and help, I really appreciate it, there's a lot for me to digest, so, see you soon.
I'm going to get an answer as to why GAP isn't recognizing the path as I explained in opening this topic, I don't mind if it's a GAP problem, however I usually find it's a Richard error.
Edit...in answer to your question Pat, I run GIMP 2.8.18 GAP 4.7.5 Mathmap and G'MIC 1.7.9, as yet I've not found a need to update my G'MIC and don't want to push my luck, I've only just got my set-up back to how I want it, mainly thanks to help from rich2005.
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Post#6 by RJKD » 05 Jul 2017, 14:42


Quick update if it helps Pat, just installed latest G'MIC QT 32bit no probs, put in my plug-in folder and went to Edit>Preferences...etc Runs alongside 1.7.9
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Post#7 by animicule » 05 Jul 2017, 15:03


RKJD, if your path has changed direction...
I find that when I save a path to a file (right click on the path name from the Paths Tab and choose export to file --)
It changes direction!!!
so, if I import it again, and save it a 2nd time it changes direction again (to the direction I wanted the first time)
Maybe this will help?
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