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NERF Gun painting help

Sep 3, 2014, 08:35
Post: #1
NERF Gun painting help
I paint NERF Guns to resell for LARP's and Cosplay. I want to use GIMP to paint pics of the guns so I can see what they will look like before hand. Can someone point me towards a tutorial or instructions for the easiest way to paint over a gun pic. So far all I have figured out how to do is stuff I could do with a basic paint program. I have attached a pic of the gun im currently working on.


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Sep 3, 2014, 09:04 (This post was last modified: Sep 3, 2014 09:07 by rich2005.)
Post: #2
RE: NERF Gun painting help
Because of the shapes and shading, painting in, maybe difficult for a beginner.

First try the rotate colors tool. Colors -> Map -> Rotate Colors.

http://docs.gimp.org/2.8/en/plug-in-rota...ormap.html

Experiment moving the pointers, apply more than once to change different colours.

can look like this http://i.imgur.com/mVOL04u.jpg

but if you are painting details on by hand, that is another matter.

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Sep 3, 2014, 10:27
Post: #3
RE: NERF Gun painting help
Thanks Rich. That helped but I cant quite get it the way I want. I have attached an updated pic. I like the green but I cant seem to get the blue to change with out also changing the green. I would like to make the blue brown. Give it a kind of futuristic camp look.

(Sep 3, 2014 09:04)rich2005 Wrote:  Because of the shapes and shading, painting in, maybe difficult for a beginner.

First try the rotate colors tool. Colors -> Map -> Rotate Colors.

http://docs.gimp.org/2.8/en/plug-in-rota...ormap.html

Experiment moving the pointers, apply more than once to change different colours.

can look like this http://i.imgur.com/mVOL04u.jpg

but if you are painting details on by hand, that is another matter.


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.xcf  rapidstrike gun 2.xcf (Size: 756.75 KB / Downloads: 12)
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Sep 3, 2014, 15:25
Post: #4
RE: NERF Gun painting help
You can use paths to separate the colors.
And then use those same paths of dialogue paths, coloring experiencing various colors.
G'MIC - Select Replace Color can be a good tool in some cases.
   


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Sep 3, 2014, 18:30
Post: #5
RE: NERF Gun painting help
Ofnuts can you tell me how to find the "Modes" you mentioned. I played around with a few things and got it closer to what I want. But I want to neaten it up more. And I want to learn more in general.

(Sep 3, 2014 12:11)ofnuts Wrote:  
(Sep 3, 2014 09:04)rich2005 Wrote:  Because of the shapes and shading, painting in, maybe difficult for a beginner.

First try the rotate colors tool. Colors -> Map -> Rotate Colors.

http://docs.gimp.org/2.8/en/plug-in-rota...ormap.html

Experiment moving the pointers, apply more than once to change different colours.

can look like this http://i.imgur.com/mVOL04u.jpg

but if you are painting details on by hand, that is another matter.
You can also try to paint with the brush in "Hue" or "Color" mode, or, which is somewhat equivalent, add a layer, set it to "Color" or "Hue" mode, and paint on it with the brush in "Normal" mode.


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.xcf  rapidstrike gun 2.xcf (Size: 677.71 KB / Downloads: 8)
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Sep 3, 2014, 18:33
Post: #6
RE: NERF Gun painting help
Akros can you tell me how to find "Replace Color" I went through all the options at the top but couldnt find it. Like I told ofnuts I played around with it and got closer to what I want but im not quite there yet.

(Sep 3, 2014 15:25)Akros Wrote:  You can use paths to separate the colors.
And then use those same paths of dialogue paths, coloring experiencing various colors.
G'MIC - Select Replace Color can be a good tool in some cases.


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.xcf  rapidstrike gun 2.xcf (Size: 677.71 KB / Downloads: 8)
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Sep 3, 2014, 19:12
Post: #7
RE: NERF Gun painting help
(Sep 3, 2014 18:33)samwolf78 Wrote:  Akros can you tell me how to find "Replace Color"
samwolf78,
In Filters - G'MIC - Colors - Select Replace Color

About Layers Modes:
   
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Sep 3, 2014, 20:34
Post: #8
RE: NERF Gun painting help
Im trying but im just not finding what your suggesting. I looked under Filters and couldnt find anything that said GMIC or Replace Colors nor could I find anything for the Layers Mode.

Could we have different versions of the program? I have GIMP 2.

(Sep 3, 2014 19:12)Akros Wrote:  
(Sep 3, 2014 18:33)samwolf78 Wrote:  Akros can you tell me how to find "Replace Color"
samwolf78,
In Filters - G'MIC - Colors - Select Replace Color

About Layers Modes:
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Sep 3, 2014, 21:16
Post: #9
RE: NERF Gun painting help
GMIC is not part of most standard Gimp installs and usually must be downloaded and installed separately. Then you will find it under the Filters menu towards the end.


To change a Layer's Mode, you must have the Layers dialog open (Ctrl-L).
Click on a layer and then as shown in Akros's post, the mode selector is a dropdown near the top of the dialog.
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Sep 3, 2014, 23:05
Post: #10
RE: NERF Gun painting help
samwolf78,
G'MIC is a super pack of filters that need to be installed.
You can test this incredible package going on: https://gmicol.greyc.fr/

If you like, to download a version for your OS, check in:
http://sourceforge.net/projects/gmic/files/
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Sep 4, 2014, 10:00
Post: #11
RE: NERF Gun painting help
@samwolf78

I find the problem with the recolor type functions is the detail is difficult to retain.

Guessing that the original image, once upon a time, had a bump map for the shading.

I tried and could not get a dark brown using color-rotate, so IMHO, time to bite the bullet (pun unintended) and start making selections of the different areas so they can be coloured separately.

Making selections? for that sort of image, use paths, then put the paths to selections. Bit of a learning curve.

[Image: WM2TZ0d.jpg]

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Sep 4, 2014, 12:41
Post: #12
RE: NERF Gun painting help
Taking advantage of the theme, and considering that other members will refer to this topic in future. Add another method, which can in some cases be very appropriate, but not suitable for other cases.
In this example I used the G'mic - Colorize (Photographs)
   
To work around the lack of a prior selection of the areas to be painted, I used Color - Threshold the output generated by G'mic filter.
The result, used as selection to eliminate unwanted parts. Which was kept in black color, reversed and eliminated everything else. (Select - Invert)
The image now (colored) can be adjusted to taste, using layers mode or another process. Or simply used this final color.
   
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