I like playing with 3d perspective in gimp but it can be a bit tedious, I have thought about writing a script but to be honest wouldn't even know where to begin, Hence why I am here pleading on hands and knees for some help.

The workflow I would like the script to achieve would be as follows

1) copy the current selected layer.
2) Select newly copied layer and lower layer down one in layer stack.
3) Scale layer smaller by a determined factor
4) Repeat a determined number of times from step one but on most recently scaled layer.

So I would like to have control over the number of times the script will repeat range 1-500
And be able to enter in pixels the amount to reduce layer by when scaled, separate value for the width and height.

Maybe the script could be called "Perspective Scale".

Thanks.

Hello He4rty,

Which version of Gimp would you like it written for?
Gimp 2.6 or Gimp 2.8?
Under which Menu would you like it to appear?
Would you also like to select the Interpolation method, or which method do you wish it to use?
Do you have any preference as to what the new layers should be called?


fluffybunny

Thanks for the reply.

I am using gimp 2.8 on linux, I usually use the cubism setting when scaling the layer don't need to be named as they can merged together when finished.

There is a script for 3D Text...but i don`t know if it is the right for it:
http://registry.gimp.org/node/24671
May someone can modify it?

Past the 3rd or 4th iteration the layers will become very blurry, and there will be round-off errors on the layer size. It's better to apply a "ratio^N" scaling to the original layer to obtain the Nth layer.

I've tried something he4rty, as a G'MIC filter.
If you have G'MIC installed and you refresh your filters, you should be able to access the entry "Testing / Ronounours / Perspective scale" which looks like this :



If you have any idea for improvements, please let me know !

how is that different to what 'Clone Layer' does ?

and wouldnt it be a good idea to contact the man who made 'Clone Layer' and ask him to modify his script a bit more ?

Hi he4rty.
I think my "Multi-Replicate" script might fit for you.
It creates multiple copies of a layer and also allows you to scale them down progressively along the horizontal and vertical directions, even in an independent way. There is also the possibility of eventually combining the created copies by either grouping or merging them together, just like you wish.
I posted my script both on this forum and at the GIMP Plugin Registry. Take a look:

http://www.gimpchat.com/viewtopic.php?f=9&t=6057
http://registry.gimp.org/node/22383


As for the thread published in this forum, I suggest you focus especially on its third page, where Graechan effectively describes with some examples how to obtain a perspective effect:

http://www.gimpchat.com/viewtopic.php?f ... 7&start=20

I really hope my script can help you to achieve the desired results.

This is a cool filter, David. It would be nice if you could post it in the G'MIC forum.

It makes a rather fun animation. I would have liked the ability to make more layers than 10.

I use two images to make one image that appears to have height. I start out with #1 and copy to clipboard (Hard edges) Then use it as a brush to create #2 with no brush dynamics. Then I create #3 using a dynamic of size - color. When one (#2) object on its own layer is placed in front of (#3) object on its own layer set to screen mode it produces #4. It's a nice 3D type of height map.

If someone could wright a script to do that it would be nice. If it could include scaling it would be even better. But with scaling the edges tend to be pixelated so as to not made smooth edges which doesn't work.



Alan

Very cool. That looks pretty straight forward.

Thanks for all your help Gimp Chatters, Looking through all the suggestions then Gino D script could be exactly what I'm after plus a bit more.

Again thanks.