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 Post subject: Glass Sphere: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 2:29 pm  (#1) 
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Can anyone here try to recreate this tutorial for Gimp users?

The tutorial is here: http://forums.getpaint.net/index.php?/t ... -tutorial/

I've tried it in paint.net and I couldn't get past step 6. I think the author of this tutorial doesn't explain it well.

If this is in the wrong section or shouldn't be here, please remove it.


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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 4:55 pm  (#2) 
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You are right, it is very confusing. He says to repeat step 4 then a few steps later he says to ignore that step and then it gets more confusing on down further. It would probably have to be rewritten step by step to try to figure it out. I think I will skip it :teeth

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 5:20 pm  (#3) 
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That's what I thought. I'm thinking of skipping it. Too long and confusing. If anyone wants to give it a shot, go ahead.


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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 7:09 pm  (#4) 
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The following corresponds (somewhat) to the first ten steps of that tutorial.

  1. Create a new image 1600x1300 and fill the Background layer with black.
  2. Use the Elliptical Select Tool :elipse to select a circle that fits within the image (hold down the SHIFT key after clicking to make the ellipse perfectly circular).
  3. Create a new transparent layer and name it "Blur30".
  4. Add a layermask to the new layer, initializing it to the selection.
  5. Duplicate the "Blur30" layer and change the name of the new layer from "Blur30 copy" to "Blur17".
  6. Duplicate the "Blur17" layer and change the name of the new layer from "Blur17 copy" to "Spread41".
  7. Set the foreground color to white.
  8. Activate the "Blur30" layer by clicking on its thumbnail preview in the Layers dialog.
  9. Perform "Edit->Stroke Selection..." with a Line Width of 6.
  10. Apply a Gaussian Blur with a Radius of 30.
  11. Activate the "Blur17" layer by clicking on its thumbnail preview in the Layers dialog.
  12. Perform "Edit->Stroke Selection..." with a Line Width of 4.
  13. Apply a Gaussian Blur with a Radius of 17.
  14. Activate the "Spread41" layer by clicking on its thumbnail preview in the Layers dialog.
  15. Perform "Edit->Stroke Selection..." with a Line Width of 4.
  16. Apply a "Filters->Noise->Spread..." with an Amount of 41.
  17. Apply a Gaussian Blur with a Radius of 2.
  18. Set the foreground color to orange (#FF8000).
  19. Create a new layer fiiled with the foreground color and name it "Select Circle". Position this layer just above the Background layer in the layerstack.
  20. Add a layermask to the new ("Select Circle") layer, initializing it to the selection.
  21. Set the FG/BG colors to their defaults (foreground=black, background=white).
  22. Double-click on the Blend Tool icon :blend and change the Shape of the blend to "Radial" in the Options dialog that appears. Also, click on the Reverse icon :reverse (the gradient should be "FG to BG (rgb)").
  23. In the Image window, drag a Blend stroke from a position halfway between the edge of the circle and its center at about the 4 o'clock position to a point opposite the center in the 10 o'clock position (if you are unhappy with the result, UNDO and try again).

At this point your setup should appear similar to the following (the mouse pointer shows where I started my Blend stroke in step 23):

Attachment:
SSglobe.png
SSglobe.png [ 153.97 KiB | Viewed 3717 times ]

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 7:44 pm  (#5) 
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Nice, at least we know it can be recreated. I think the author who initially created it, missed a lot of steps. I couldn't even come close to what saulgoode produced in GIMP while I was in paint dot net.


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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 7:49 pm  (#6) 
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Thought i would give the sphere a try. I didn't follow the tutorial i went by sight.
Here are my results. Just doesn't seem glassy enough to me. :)
I think if i would have gotten the orange gradient inside correct it would have been much better.
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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 8:16 pm  (#7) 
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Rod, I like it. I'm hoping to make a sphere in PDN & in Gimp and see which one is the better outcome. Sadly, I'm reworking the PDN tutorial since it's still confusing for me so we will see how it goes.


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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Thu Aug 15, 2013 8:25 pm  (#8) 
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looks pretty good to me, Rod !


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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 10:20 am  (#9) 
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Nice results, Rod. :yes

You inspired me to take a stab at glassy globes. I didn't follow the tutorial either, just attempted my own variation.

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 10:23 am  (#10) 
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That is really cool, very nice job on the reflections.

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 11:13 am  (#11) 
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molly wrote:
That is really cool, very nice job on the reflections.

:tyspin Molly. I used the Logo Toolbox & GC Shadow scripts to help create the glassy globe, then adjusted the highlights with GIMP's transform tools.

There are certainly some flaws in the render, but it was fun.

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 11:50 am  (#12) 
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Not the same effect but this is a good tutorial http://forum.croar.net/topic/63/ for making a glass ball. I'm sure the internal lines could easily be added to it.

Here's an attempt I made with some stuff on the inside that was made with the flame filter.
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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 11:55 am  (#13) 
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Very spiffy Caz...

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sat Aug 17, 2013 12:44 pm  (#14) 
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Nicely done Caz and Tux. :)

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 4:29 am  (#15) 
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Thanks Molly and Rod.
Spiffy, what a great old word, haven't heard it used in a long time. :cool

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 10:09 am  (#16) 
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I've always been partial to the specular reflection method of creating glass spheres ...

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 10:14 am  (#17) 
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Caz wrote:
Not the same effect but this is a good tutorial http://forum.croar.net/v:63 for making a glass ball. I'm sure the internal lines could easily be added to it.

Here's an attempt I made with some stuff on the inside that was made with the flame filter.

Thanks for the link to the tutorial. You managed to get the flame painter graphics to actually look like it's inside the ball.

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 11:25 am  (#18) 
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GnuTux wrote:
Thanks for the link to the tutorial. You managed to get the flame painter graphics to actually look like it's inside the ball.


Cheers. I wanted to post the link somewhere. I just stumbled on it by accident but I think it's probably one of the best glass sphere tutorials I've found so far, and it's for Gimp so there's none of that head scratching I get when trying to work out how to make a photoshop tutorial work. :bigthup

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 12:10 pm  (#19) 
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This was one of the first designs I did in gimp by following a tutorial but the tutorial was old and had no images (as most had expired or been deleted) so I fumbled my way through and ended up with the above.

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 Post subject: Re: Can anyone try to recreate this tutorial?
PostPosted: Sun Aug 18, 2013 1:24 pm  (#20) 
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Thought I would share one way you could create the orange stripes, If you know the original diameter of your orb then create a path twice the size, In my example below the orb is 200px in diameter so I have created a circular path 400px in diameter. Then using the move tool, make sure it is set to path move and position your path, stroke path using desired settings, I selected the orb first so the path tool wouldn't stroke outside of the circle.
I finally duplicated the two lines I had created and rotated this new layer by 180 degrees and positioned under the orb to create the rear lines.

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