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How to fine-tune the ligh...
Forum: General questions
Last Post: rich2005
8 hours ago
» Replies: 3
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Remove error created Temp...
Forum: General questions
Last Post: JB10
Yesterday, 08:27 PM
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apply a certain gradient ...
Forum: General questions
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Yesterday, 05:22 PM
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Gimp 3.2.4 NO Color Theme...
Forum: General questions
Last Post: corawilliamlee
Yesterday, 08:49 AM
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Most accurate way to colo...
Forum: General questions
Last Post: IndiePubber
Yesterday, 06:58 AM
» Replies: 8
» Views: 694
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Theming 3.2 ( in my case ...
Forum: Installation and usage
Last Post: bluedxca93
06-24-2026, 01:24 PM
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How would I be able to be...
Forum: General questions
Last Post: sallyanne
06-24-2026, 12:29 PM
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Color picker doesn't refl...
Forum: General questions
Last Post: CmykStudent_
06-23-2026, 07:20 PM
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gimp removes transparency...
Forum: General questions
Last Post: saint_m
06-23-2026, 12:48 PM
» Replies: 5
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Converting python plugin-...
Forum: Gimp 2.99 & Gimp 3.0
Last Post: DerPit
06-23-2026, 09:36 AM
» Replies: 67
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| How to fine-tune the lighting effects tool |
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Posted by: IndiePubber - Yesterday, 09:38 PM - Forum: General questions
- Replies (3)
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First of all, thanks to everyone who's been helping me along with my latest book cover.
As I posted in another thread, here's where I've gotten to with the front (I have the typography in another file and will layer it in when the graphics are complete).
I'm at a pretty good place, I think, with the color matching, but the Fachwerk background needs work to make it less one-dimensional and more lively. I'm aiming for the same background effect I had on the first book in the series. Its front cover looks like this:
The blueprint background is a vector image licensed from Shutterstock and it came as you see it, with the highlights and shadows already on. I just moved it around behind the heads of my couple to get the halo effect I wanted.
The Fachwerk photo, on the other hand, was evenly-lit, with no variation of light and shadow. I think I can use Filters > Light and Shadow > Lighting Effects to give me some highlights, at least. But I'm having a hard time doing it correctly. I'm able to go into the Light tab and use the blue dot to add point-source glow, but . . .
- How do I locate the light points so they're at the right position behind the models' heads? Yeah, I see the boxes with the X and Y axes, but I have no idea how to find those numbers in relation to the layer above.
- How do I make the glow radius smaller so I only get the light I want? Every time I try, even when I turn the intensity way down, it over-lights and overwhelms the whole background.
- I'm wondering why the Bloom tool options box keeps coming up, when I didn't select Bloom in the first place. I wouldn't mind experimenting with it, but when I try to use the sliders or enter a parameter, nothing happens.
- Would it help if I chose Transparent Background in the General Options dialogue? Would that create a new layer so I can move the light around on the Fachwerk image and put it where I want it? Or would that be "Create New Image"?
- Are there settings in Lighting Effects where I can create negative light, so to speak, and selectively put parts of my background in shadow? Or would that be a different tool?
Maybe I should ask if this Lighting Effects is even the best tool for the job. I had a bit of luck with Supernova, but it was tricky trying to eliminate all the rays. And even then, it's too star-bursty.
Thanks in advance for any pointers you can give.
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| Theming 3.2 ( in my case like win3.x) |
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Posted by: bluedxca93 - 06-23-2026, 05:50 PM - Forum: Installation and usage
- Replies (6)
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Hi, is there a documentation on how to theme gimp 3.2? In the screenshot you can see how far i could progress on my own. Gimp now looks a lot friendlyier and more usable to my taste. And its blazingly fast on linux with 64 GB of ram.
I did found out that the toolitem group can be acessed from css with:
Code:
GimpDock toolitemgroup button.flat {
border-color: #000; background-image: none; border-radius: 2px; color: #000000; border-top: 1px solid #000000; border-left: 1px solid #000000; border-right: 1px solid #000000; border-bottom: 1px solid #000000; background-color: #c6c6c6; box-shadow: inset -2px 0 #94918C, inset 0 -2px #94918C, inset 2px 0 #FFFFFF, inset 0 2px #FFFFFF;
}
GimpDock toolitemgroup button:checked {
border-color: #000; box-shadow:inset 2px 2px #000, inset -2px -2px;
}
kind regards bluedxca93
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| Fine-tuning GIMP performance for huge canvas sizes (Resource Cache question) |
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Posted by: MaxClifton - 06-22-2026, 06:44 AM - Forum: General questions
- Replies (2)
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Hey folks,
Quick question regarding hardware optimization. I recently upgraded my PC to 32GB of RAM and an NVMe SSD, but I’m still noticing some stuttering and brush lag when working on massive digital painting canvases (around 6000x6000px with dozens of layers).
I’ve looked into the Preferences under System Resources, but I’m a bit confused about how high I should safely set the "Resource Cache" (Tile Cache). Is it safe to allocate around 70-80% of my total RAM to it, or will that starve my OS and cause system instability?
Also, does GIMP actually utilize GPU acceleration effectively through OpenCL on modern setups, or am I better off leaving that toggle unchecked? Any advice on making GIMP run as buttery smooth as possible would be greatly appreciated!
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| How to restore tool docks to original setup |
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Posted by: ajax - 06-16-2026, 05:42 PM - Forum: General questions
- Replies (4)
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I am using GIMP on Windows if that matters in Single Window Mode.
It looks like I did something, unknown to me, which has caused the tool options to stop being displayed in the frame on the left side of the window. It looks like they now appear in the top of the frame on the right side which, for me, normally displays a histogram. I think the setup I prefer is the standard default (out-of-the-box so to speak.
I'd be grateful if someone could explain how to restore GIMP to its' prior state.
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