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demo-offset.png26.96 KB
00-Offset-by-froGgy_v1.0.scm5.9 KB

This script-fu allows to shift tiles/bricks/blocks one row or column out of two. It will help to draw brick walls, etc...

You can find "00 - Offset by froGgy" in Filters>2D Isometric-Fu>

I know this is not isometry, but I want to gather together in the same directory all the little script-fu that can help draw walls, floors, roofs etc...before their transformation into isometry.


GIMP Version: 
Scripting Engine: 


I tried making a grid and running this script and it doesn't work. So, I am guessing I am not doing this the right way or something else is involved.

Yes, it requires a layer of blocks. This script doesn't create a grid. It works from an existing image. You just have to put the correct size of the blocks. In my example, it's 32px x 16px

I created the grid using Filters - Render - Pattern - Grid. My mistake was calculating the white area as the block size.

On a hunch, I just used simple math (480 x 480 px image):
5 blocks wide = 96px
10 blocks high = 48px.

I guess I was just expecting the script to "automatically" figure this out, hahaha... (I apologize for the oversight).

I made some very cool looking medieval brick using this process and G'MIC:

"Misunderstanding"> Sorry, I misread your post.
"I guess I was just expecting the script to "automatically" figure this out, ">
Why not but I don't know how to calculate automatically the blocks size.

"I made some very cool looking medieval brick using this process and G'MIC" > Thank you, I didn't know G'MIC ;)
The joints could be improved: they may be too dark.
But I like the texture of your wall. Could you explain me how you made this?
Which filter did you use? Unsharp-mask?

I used G'MIC to create depth on the blocks using the light glow filter.

I added a second layer of gravel pattern fill and bumped it onto the block layer and then colorized.

I'm still undecided on what approach to take on the mortar. When I run your offset script, I have it create another layer, and I use cubism on the second layer to bump against the block layer a second time, to give it the random chipped look. But then I fall into a funk on what I consider a good mortar look. I have two approaches, I can add noise to the second layer and bump it slightly, or I can change the second layer mode to grain merge. But when I lower the opacity, it doesn't look right. So this is why I left it dark in the image above.

Ofnuts created a new random stipple script:

I'm thinking of giving that a whirl on the mortar effect and the use layer mode blending to see how it works out.

Thank you for your reply.
I think it would be too difficult to automate in order to obtain such work. And more importantly, it would take away part of creativity. ^_^

A script exists to make walls. It is a very good starting point. : by sambrookjm
Then there is the script "offset" to help personalize all this.

I use sambrookjm's brick wall script (I left comments on his post).

Like you said, your script allows for personalization, which I enjoy being creative with my own processes.

Win-win. Both are excellent scripts/additions to the GIMP toolbox.

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