Creating svg gradients for Gimp

Rod · **Joined:** May 16, 2010 **Posts:** 16139

I wonder if someone using GIMP-2.8.14 could try it? Or even earlier versions.
Gradient file attached.

Attachment:

RD_myWhiteToBlueFireGrad.zip [335 Bytes]
Downloaded 242 times

Konstantin · **Joined:** Sep 20, 2016 **Posts:** 293

Thanks for clearing that up !
Glad its not a problem on my side.

Im afraid i dont know how to make a bug report.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Konstantin wrote:

Thanks for clearing that up !
Glad its not a problem on my side.

Im afraid i dont know how to make a bug report.

http://www.gimp.org/bugs/

I will take care of it for you.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Bug was already reported.
https://bugzilla.gnome.org/show_bug.cgi?id=371925

Rod · **Joined:** May 16, 2010 **Posts:** 16139

I resubmitted as it was closed as incomplete.

Windows 10 64 bit / GIMP-2.8.16 64 bit

SVG gradients not working in GIMP-2.8.16 same problem. A black tile shows in the dialog.
I created my own here
<defs>
<linearGradient id="myWhiteToBlueFireGrad" x1="0%" y1="0%" x2="100%" y2="0%">
<stop offset="0%" style="stop-color:rgb(255,255,255);
stop-opacity:1"/>
<stop offset="25%" style="stop-color:rgb(255,240,0);
stop-opacity:1"/>
<stop offset="50%" style="stop-color:rgb(245,125,0);
stop-opacity:1"/>
<stop offset="75%" style="stop-color:rgb(255,0,0);
stop-opacity:1"/>
<stop offset="100%" style="stop-color:rgb(0,10,195);
stop-opacity:1"/>
</linearGradient>
</defs>

Saved in my /.gimp-2.8/gradients folder as RD_myWhiteToBlueGradient.svg

Expected a white to blue linear gradient.

Results - A black tile.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

I am going to try and create and save a gradient file from InKscape and see if they are different code wise.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Been a while since i've done this. Isn't there a way to save a gradient in Inkscape?

mahvin · **Joined:** Oct 06, 2010 **Posts:** 4050

capnhud wrote:

:) Yes you would need inkscape installed. But since it works on windows and linux ( not sure about mac) it complements gimp

Inkscape works on Mac using XQuartz. Just putting that out there.

https://inkscape.org/en/download/mac-os/

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Figured it out.

The gradient syntax is different now.

Code: Select all

    <defs>
      <linearGradient id="MyGradient">
        <stop offset="5%" stop-color="#F60" />
        <stop offset="95%" stop-color="#FF6" />
      </linearGradient>
    </defs>

So This

Code: Select all

<defs>
<linearGradient id="myWhiteToBlueFireGrad" x1="0%" y1="0%" x2="100%" y2="0%">
<stop offset="0%" style="stop-color:rgb(255,255,255);
stop-opacity:1"/>
<stop offset="25%" style="stop-color:rgb(255,240,0);
stop-opacity:1"/>
<stop offset="50%" style="stop-color:rgb(245,125,0);
stop-opacity:1"/>
<stop offset="75%" style="stop-color:rgb(255,0,0);
stop-opacity:1"/>
<stop offset="100%" style="stop-color:rgb(0,10,195);
stop-opacity:1"/>
</linearGradient>
</defs>

Reverts to this

Code: Select all

<defs>
<linearGradient id="myWhiteToBlueFireGrad">
<stop offset="5%" stop-color="#FFFFFF" />
<stop offset="25%" stop-color="#fff000" />
<stop offset="50%" stop-color="#f57d00" />
<stop offset="75%" stop-color="#ff0000" />
<stop offset="100%" stop-color="#000ac3" />
</linearGradient>
</defs>

Much simpler code also.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

But i found that the white is really sharp using those percentages so i went with this instead.

Code: Select all

<defs>
<linearGradient id="myWhiteToBlueFireGrad">
<stop offset="0%" stop-color="#ffffff" />
<stop offset="10%" stop-color="#fff000" />
<stop offset="25%" stop-color="#fff000" />
<stop offset="75%" stop-color="#ff0000" />
<stop offset="100%" stop-color="#000ac3" />
</linearGradient>
</defs>

Results

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Oh by the way i submitted this to the bug thread so they can close it for good.

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Tested in GIMP-2.9.5 and it works great there too.

I love the on canvas gradient editing. :bigthup

Rod · **Joined:** May 16, 2010 **Posts:** 16139

And an orange to opacity % SVG gradient.

Code: Select all

    <defs>
      <linearGradient id="SVG Orange To Opacity">
        <stop offset="0%" stop-color="#F60" />
        <stop offset="100%" stop-color="#FF6" stop-opacity="0.50" />
      </linearGradient>
    </defs>

Results

And for full transparency on one side.

Code: Select all

    <defs>
      <linearGradient id="SVG Orange To Opacity">
        <stop offset="0%" stop-color="#F60" />
        <stop offset="100%" stop-color="#FF6" stop-opacity="0.0" />
      </linearGradient>
    </defs>

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Experiment with the adding of points and opacities within those points. You can get bars by using this one.

Code: Select all

<defs>
<linearGradient id="SVG myYellowRedBarGrad">
<stop offset="0%" stop-color="#ffffff stop-opacity=50" />
<stop offset="10%" stop-color="#fff000" />
<stop offset="25%" stop-color="#fff000 stop-opacity=50" />
<stop offset="75%" stop-color="#ff0000" />
<stop offset="100%" stop-color="#000ac3 stop-opacity=50" />
</linearGradient>
</defs>

Results

Rod · **Joined:** May 16, 2010 **Posts:** 16139

This one adds actual transparent areas between colors.

Code: Select all

<defs>
<linearGradient id="SVG myYellowRedBarGrad">
<stop offset="0%" stop-color="#ffffff" stop-opacity="0.50" />
<stop offset="10%" stop-color="#fff000" />
<stop offset="25%" stop-color="#fff000" stop-opacity="0.50" />
<stop offset="75%" stop-color="#ff0000" />
<stop offset="100%" stop-color="#000ac3" stop-opacity="0.50" />
</linearGradient>
</defs>

Results

Konstantin · **Joined:** Sep 20, 2016 **Posts:** 293

Good Job !
This will be very useful.

trandoductin · **Posted:** Tue Sep 20, 2016 5:53 pm **(#37)**

You guys might want to check out this .py script which exposes 3 functions to work with svg gradients for Gimp.
Click on this link

Pat625 · **Joined:** May 12, 2015 **Posts:** 4693

Please excuse my lack of knowledge. Are the .svg gradients better than the regular .ggr gradients?

dinasset · **Posted:** Wed Sep 21, 2016 12:20 am **(#39)**

I guess the benefit is the possibility to edit it in an easier way (especially with Tin's filter), I don't know about better quality

Rod · **Joined:** May 16, 2010 **Posts:** 16139

Pat625 wrote:

Please excuse my lack of knowledge. Are the .svg gradients better than the regular .ggr gradients?

It has always seemed tedious working with GIMPs gradient manager. In my honest opinion these are easier to create. Quality is about the same.
Thanks for the link Tran.