Hi Stefan,

> What I had like seen, as I described, is to have in the script a way to select a starting and an end
> color, while the script computes then the steps betweenthose two colors.

It should be possible to make a script that does this.

What color space do you want to use for specifying the colors?

If using RGB colors, going from Red to Red like you mentioned above would only yield red for all the steps in between.

But something using Hue, Saturation, Value colors could probably give more of a rainbow type effect.

- Michael

Hi Stefan,

re:
> I did a quick test and I don't know how to get rid of the main MoI
> colors when applying the gradient.

If this is the only problem, I think you could solve it by deleting the main MoI styles, then apply the gradient, then use "Add default styles" on the Styles menu in the Scene browser to bring back in the regular default MoI styles again.

- Michael

Hi Michael,

that would be super awesome if you could do that and HSV color space would be perfect.

For the second question, thanks for the info, but I think workflow wise it is not so pratical,
like what I have suggested. For example if one has many splines or objects, select groups
of them each time, to colorize them with your script individually.

Best regards
Stefan

Hello Stefan,

would you show an example of what you want to do?

Have a nice day
Karsten

Hi Brian,

thanks for the suggestion. I must admit, while I like to try out things It would
IMHO not the best workflow for users, whishing to apply a gradiend (rainbow)
to selected splines or objects.

Best regards
Stefan

Hi Karsten,

I had years ago done many things like this with Shade3D and a Gradient plug-in,
but unfortunately I no longer have that data to show, due to a harddisc crash,
while not keeping back-ups.

To explain it again: A user should have the option via a script to select two
colors, a starting and an end color (HSV color space, like Michael suggested)
so that he/she will have later a gradient on prior selected splines or objects
as style colors applied.

This would be IMHO very appreciated (at least by me) for people doing
mathematical line drawings with MoI or when used for example on arrayed
solids or surfaces etc. Possibilities are endless with this colorizing option.

Best regards
Stefan

Hi Karsten,

this free Vector Artwork (I don't remember the author etc.) would be IMHO a perfect
example to apply various gradiends on and then later presented on a black background
or rendered as glowing light paths etc.



Best regards
Stefan

Hi Stefan,

I think that a traditional Moi script, with user interaction would be relatively easy.

Outlining the steps, defining the requirements:

Have an existing styles set with good candidates for start and end colors.
Get style index for next new style color to be added to styles.
Select objects.
Select start color.
Select end color.
Code will have loop(s).
Compute HSV gradient, and save each color to end of Styles list.
Cycle through objects, and gradient styles by index, and sequentially apply the colors.
Option:Delete the new gradient styles.

-B

Hi Brian,

that sounds very good. I would prefer however that the styles, if I understand you corectly,
are not been added to the browser list, prior selecting the objects, and cycle through both.

My wish, if possible, would be that one (like you describe) can define his/her gradients by a start
and end color, select the desired objects or splines and then run the script to apply the gradient(s).

Anyways, whatever shows up in this regard will be much appreciated!

Best regards
Stefan

Hi Stefan
I think that the gradient colors, MUST present in the style list?
Which brings up managing an accumulation of colors.
Maybe MoI 5 will have Tabs or libraries of styles?

 Edit: aftersaving to .3dm, gradient styles could be deleted?

I'll continue to read this thread with interest.

-Brian

Hi Brian,

the computed gradient colors must be in the browser, but what I mean only
after selecting the desired objects and once the script is run on these objects.

Because I think this would make it easier to manage the job better, when using
multiple gradients for multiple objects(groups).

And the computed styles must be present in the .3dm file, me thinks, because
when one wants later reuse the file, say for 3D printing etc. the colored objects,
it needs these styles.

The option, you mentioned, for deleting them could be an option of course.

Best regards
Stefan

So color styles can be added to MoI, and are lost upon re-opening MoI, unless the MoI screen is saved as a .3dm file to the Moi "Template file" in AppData/roaming/Moi.
The current Template file location is shown in Options/General (?)

Saving Gradient colored objects to a .3dm file, in some other place, preserves their color style in the .3dm file.
Upon re-loading to MoI, the Gradient colors are added back to MoI's style menu, but not necessarily permanently.

- Brian

Hi Brian, yes that's correct, the styles list is saved to a .3dm file and will be restored when loading the .3dm file back again. If a template file is set, the styles in it will be used for the initial styles list when MoI starts up and when you do a File > New.

If you build up a set of styles that you want to save for later use, you should save to a .3dm file which will then contain them. That's the same as if you build up set of objects that you want to work on more later on. When you create an object it does not stay around permanently, they are saved to and loaded from files.

- Michael

Hi Stefan, give the attached plug-in a try.

For v4, install it into the MoI appdata commands folder and then set up a keyboard shortcut for CreateGradientStyles to trigger it.

It depends on objects being named and applies the gradient in the alphabetic order of the object names.

- Michael

That works...but each objects must have a different names!
This is not very easy! :)

Hi Pilou,

re:
> That works...but each objects must have a different names!

Yes, I asked about that earlier in the thread here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=9676.5

Stefan replied that was how it should work:
http://moi3d.com/forum/index.php?webtag=MOI&msg=9676.6

- Michael

Will be a nightmare for the Mandala above no ?
http://moi3d.com/forum/index.php?webtag=MOI&msg=9676.25

Filling random a mandala is more easy than a gradient one! :)

Hi Pilou,

re:
> Will be a nightmare for the Mandala above no ?

Well as I wrote above (http://moi3d.com/forum/index.php?webtag=MOI&msg=9676.5):
"That seems kind of cumbersome but it could be possible to set it up that way if that would work best for you."

That's why I made sure to double check that was how it was supposed to work.

Yes, I'm not really sure what a gradient on the Mandala is supposed to look like. Maybe something based off of the fragment's position... ?

- Michael

Hi Pilou, here's a variation that might be more interesting to you - this one takes a path curve and makes the gradient by taking the center of the object's bounding box and seeing how far along the curve that is.

Select objects to colorize, then run the command, then pick the path curve and then set start/end color values:







- Michael

Thank you so much Michael, much appreciated!!!

But I must admit I don't know how to set up a correct shortcut to trigger the command. :-(

I remember that from v3 with other scripts, but now with v4 I am lost, even if the UI is the same.

Best regards
Stefan