As promised here are some more tips, and a sample XCF file at the end.
There's a built-in grid tool in GIMP (Image --> Configure Grid)
but it's completely useless to us in this project, we're gonna go another way.
First make a new image, let's say 130x195, that's gonna be our "model" game cover. Color it black, right-click the layer and select Add alpha channel
if it's not already checked, then go to Image --> Canvas Size
and add a number (let's say 10) to both the width and the height, then at the bottom choose Resize layers: All layers
and Fill with: Transparency
, then click the Resize
button. You now have (1) tile sized 140x205.
Go to Filters --> Map --> Tile
, uncheck the chain icon binding the width to the height, then multiply each of the width and height by a whole number that denotes the column and row count, respectively. For example I want 10 columns and 5 rows, so 140*10 in the width and 195*5 in the height. A new image will be created containing a blank grid, go to Image --> Crop to Content
, and now you have the basis of your chart.
Note that the grid doesn't have any margins, you can add those using the Canvas Size
method I mentioned earlier, but make sure after you input the new size to click the Center
button under the Offset
Whenever you wanna scale a cover, open it as a new image first, and after cropping/cleaning up the image go to Image --> Scale Image
and input the exact size you want the image to be. Also choose an interpolation, I personally prefer NoHalo but any of the others are good (except None).
What you should NOT do, is use the Scale Tool
; it only scales single layers and creates "faded" edges in the result. See pic related.
Will the text for the genres break the grid? Absolutely not. Any text you insert will be automatically assigned its own special type of layer that allows you to edit/format said text anytime. Do NOT paint on or crop text layers as that will render them into regular layers and you will no longer be able to edit the text... Text should be positioned at the center of a group of tiles of your choosing. To center text (or any layer really) into a certain area, select it first, then choose the Alignment tool
and click on the layer you want to center (make sure none of the layers on top of it are visible). Then in the tool properties choose Relative to: Selection
then click the two center buttons.
You can also align multiple objects/layers at the same time but this is a bit tricky and I'm not getting into it here.
(couldn't upload XCFs here sorry)
You might want to View --> Sow Layer Boundary
to get an idea where each layer ends, it'll put things in perspective at least in the beginning of your GIMP journey.