[G'MIC] New filter 'Deformations / Drop water'

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Hello there,

I'm happy to announce a new cool filter in the G'MIC plug-in for GIMP, namely Deformations / Drop water.
As its name suggests it, it tries to render water drops.
I know there is already a script that does this (discussed on Gimpchat : http://gimpchat.com/viewtopic.php?f=9&t=3681),
but this is something I wanted to try with my own approach. At the end, we have yet another technique to simulate water drops,
so that's nice

Here are a few screenshots to show how it looks like. As for the script, you can set up a new layer containing the shapes to be transformed
as water drops. I hope you'll enjoy this one !

When the procedural mode is selected, this simply adds some random water drops on your image :

Attachment:

gmic_drop_water1.png [ 517.29 KiB | Viewed 6473 times ]

Now, you can also add a new transparent layer and draw opaque shapes in it :

Attachment:

gmic_drop_water2_5.png [ 744.39 KiB | Viewed 6473 times ]

And the filter is able to generate this :

Attachment:

gmic_drop_water3.png [ 864.3 KiB | Viewed 6473 times ]

This is a first version, so I'll probably try to improve it in the future, but this is already a lot of fun !

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12815

Now that's freaking awesome David. Looks like it even gives you lens distortion effects much like water will do. Cook stuff.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Yes, I've simulated the refraction Lyle

lylejk · **Joined:** Sep 24, 2010 **Posts:** 12815

Yeah; the word refraction eluded me earlier. lol

Odinbc · **Posted:** Fri Jul 17, 2015 4:01 pm **(#5)**

Thank you for the new script. :bigthup

Here's a quick go.

With multiple leaves a more precise selection on my part would have been better.

syn · **Joined:** Jul 17, 2015 **Posts:** 3

Can't wait to try it! It looks awesome.....love water effects

Oregonian · **Posted:** Fri Jul 17, 2015 4:40 pm **(#7)**

I couldn't get a second layer with text to work like yours. Have attached the xcf file of mine.

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

It works for me.
You need to select 'Input layers -> All', and 'Shape -> Opaque regions on top layer'.

Attachment:

pink-roses-gmicdrops.png [ 521.98 KiB | Viewed 6360 times ]

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

I am unable to get Text and water drops together on the image. I get one or the other. How do you get both?

Graechan · **Posted:** Fri Jul 17, 2015 8:50 pm **(#10)**

As the author of the Waterdrops script I thought I would test it out, a marvelous filter David

Graechan · **Posted:** Fri Jul 17, 2015 9:53 pm **(#11)**

Suggestions: would like a distortion setting (text comes out to even), color setting for drops besides opaque (it would be great for blood)
below I've prickled the text like rose thorns

for Blood drops↓ after selecting 'Output as separate layers' I used colorize on the [Gradient layer] and changed It's layermode to Normal

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Graechan: My idea is to keep the filter simple enough. If you want to deform the text, I guess it's more logical to provide a deformed "shape" layer instead (using the G'MIC filter 'Deformations / Random' for instance). Same for custom colorization. As you said, we can obtain a lot of different liquid styles by playing with the output layer opacities and blending modes.
Maybe I could propose some 'presets' to set those opacities and blending modes automatically for different types of liquids.

Rod · **Joined:** May 16, 2010 **Posts:** 16135

Very nice effect David. Thank you for this new filter.

Rod · **Joined:** May 16, 2010 **Posts:** 16135

Dropped the gradient layer a little here.

Graechan · **Posted:** Sat Jul 18, 2015 2:32 am **(#15)**

Ronounours you are correct distortion effects are not hard to add (I was just being lazy)

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Having fun with it :

Attachment:

malkovich_cold.jpg [ 148.91 KiB | Viewed 3016 times ]

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

I've just improved the filter, now the refraction layer is output separatly, so you can change its color afterwards (with the 'colorize' tool of GIMP), to easily get colored liquid (blood for instance).

Attachment:

malkovich_blood.jpg [ 176.49 KiB | Viewed 3014 times ]

sallyanne · **Posted:** Sat Jul 18, 2015 4:30 am **(#18)**

Couldn't find it until I realized I should 'refresh filters' :oops:

Ronounours · **Joined:** Jan 03, 2011 **Posts:** 1656

Can't stop playing with this filter. It's really awesome

Wallace · **Posted:** Sat Jul 18, 2015 6:29 am **(#20)**

Nice addition, thanks. :bigthup