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 Post subject: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Tue Sep 25, 2012 12:32 am  (#1) 
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Requirements:
*GIMP 2.8
*Optional: Some extra gradients such as in GPS (Gimp Paint Studio) or that can be found in deviantArt.
*Patience with my probably poor English

Well, I start showing the workspace we will use in GIMP:
Image
As first step we open a new image with transparent background and 500px x 500px size. There we put the text to be used as a template. Remember that the size can not exceed the previously mentioned. Use a big font size and bold style, as seen in the picture above.
Now select the tool "Move Tool" and click on the text. With right click "Edit" > "Copy". You now can see in (A) that the first brush is the text copied to the Clipboard. It will stay there unless you copy something new to the clipboard.

Now open a new image with a white background for better visualization, and large size (1000 x 1000 for example). Put a new transparent layer over the white background (Layer > New Layer).
Now let's configure GIMP as shown in the image. We chose two colors on front and back. Select "Paintbrush Tool" and select the text copied to the clipboard as a brush (A). In "Spacing" down to a minimum value as shown in (B). Click on the dynamics button (C), and in the opened window click on the button in down right corner:"Open the dynamics selection dialog". You will see a new tab on the top right of GIMP screen called "Paint Dynamics" and click on the second button down: "Craete a new dynamics". You will see a new tab that is the "Paint Dynamics Editor" and you can rename this new dynamic as you like. There check the color-fade as shown in (D).
Now you choose a large size of the "Paintbrush Tool" in size bar (300 or more, for example). Paint the text stored in the clipboard with a left mouse button single click, as shown in the following image:
Image
Press and keep pressing the Shift key, move a small displacement and then make a single click again. You now can get designs like those shown below:
Image
You can invert the colors, or use "Airbrush Tool" instead of "Paintbrush Tool" as the last text design.
You can also play with the values ​​of "Fade length" (E), or choosing different gradients in (F). You can get designs as shown below:
Image
For the last three designs I've also checked the size-fade box on the "Paint Dynamics Editor". If you check this box, when you paint you must first make a very small displacement with the left mouse button pressed and then release the button. Then hold down the Shift key on the keyboard and do what was said above.

You can use any drawing as a template instead of text. While it not exceed 500px x 500px size. For example below I used the drawing of Wilber:
Image
For the last design I have uncheck the color-fade box and check the size-fade box. Also I made a curved path with "Paths Tool". Then Edit > Stroke Path. Stroke with a paint tool > Airbrush. Check the box "Emulate brush dynamics".
Well, the possibilities are endless. You can use Perspective Tool or also apply filters as Bevel or lighting effects.
Here I used perspective text as stamp template (first image):
Image

Finally mention that if you use a very large brush size you can get imperfections, mainly on the edges, such jagged edges. You can easily correct that applying filters or any method to enhance hot pixels or edges, such as the filter "Enhancement" > "Remove hot pixels" in G'MIC:
Image

I'm sure you can find many new designs :paint

Tags: gimp photoshop 3D text extrusion

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Last edited by YAFU on Wed Sep 26, 2012 2:04 pm, edited 4 times in total.

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Tue Sep 25, 2012 9:30 am  (#2) 
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Nice tutorial and lots of good examples.

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Tue Sep 25, 2012 11:39 am  (#3) 
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i will have to try this

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Tue Sep 25, 2012 11:46 am  (#4) 
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Awesome, I love this. Must try tonight!!!!


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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Wed Sep 26, 2012 8:59 am  (#5) 
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Thank you all. You tell me if something is not clear or not understandable in the tutorial.
Before I had written about the maximum size of the image to copy to clipboard for use as a brush (500px). Does anyone know why this limitation?

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Wed Sep 26, 2012 11:18 am  (#6) 
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I am ever so grateful for the walk through of doing the brush dynamics. I am happy to have had that experience. I played with your tutorial YAFU and had lots of fun. This is just a small part of what I was doing with it. I particularly like using the airbrush. It has an ethereal quality to it.

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Wed Sep 26, 2012 2:21 pm  (#7) 
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Nice!
Yes, brush dynamics are cool!

I think GIMP developers could improve and incorporate some small things to make GIMP a very good tool to easy emulate 3D effects. And it would be great if some of the very good plugins writers here could automate these methods on a single plugin with preview capabilities :)

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Wed Sep 26, 2012 10:35 pm  (#8) 
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I would have never found all the dynamic and how to change them without your tutorial!


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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Thu Sep 27, 2012 5:25 pm  (#9) 
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YAFU: thank you for this tutorial - i learned a lot about brush dynamics and enjoyed the text effects i could make.

Attachment:
pinks and reds.png
pinks and reds.png [ 35.93 KiB | Viewed 3941 times ]

Attachment:
warm colours.png
warm colours.png [ 47.44 KiB | Viewed 3941 times ]

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 Post subject: Re: Fake extrusion - Easy way to get 3D effect (mainly with text)
PostPosted: Thu Sep 27, 2012 11:03 pm  (#10) 
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@2-ton, AnMal: I'm glad this tutorial has been useful to you to learn about brush dynamics and that you had fun for a while.

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