Hey is there any way I can convert a paint layer to a vector layer in krita? I’m working on a background and would like it to not lose quality when scaling
There is no conversion action to make a raster layer into a vector layer because they are fundamentally different things.
For a raster ‘block shape’, you can make a vector selection around it then convert that to a vector shape but the end result is not something you’d want to work with in terms of editing it in detail but it will scale and rotate very well.
For lineart, a way of dealing with that is to use the Freehand Path tool to trace over it in a vector layer above it.
In the Tool Options docker, use Precision:Curve.
The Optimise option will let you adjust the amount of ‘optimisation’ that is used and will reduce traced vector path complexity at the cost of accuracy.
I suggest that you experiment to see what results you get with different methods and settings.
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How complex is the paint layer, in terms of color variants? If it’s a few simple colors, you might get away with the following steps (Keeping in mind the results might not be as ideal as a full-fledged Vector application):
1 - Use the “Similar Color Selection Tool” to select a single color of your layer.
2 - With the Similar Color Selector Tool still selected, right click on the selected area of the canvas and select the “Convert to Shape” option.
3 - Krita will have created a new Vector Layer at the top of your layer stack with your Shape in the form of a vector line. Deselect everything (Select → Deselect), then select the new vector layer and (using the Select Shapes Tool) select the shape on the Vector Layer.
4- On the Tools Options panel, select the tab with the image of a paint bucket and then select the color you want your shape to be. Then select the Tool Options tab with the line on it and click the button with the “X” in it, to clear out the color for the shapes line.
Repeat the steps for every color on the Raster layer. If done right, you’ll end up with something like what I’ve posted below. The left figure is my Raster image. The right figure is the result of converting its colors into individual vector layers using the steps above. For the sake of showing the shapes are vectors, I’ve moved the dark blue vector layer of her costume to the right, and selected the shape with the Edit Shapes tool, to show the vertices.
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You can export your drawing as a png file and use Inkscape’s Trace Bitmap. However, the result will depend on the drawing: sometimes the automatic vectorization leaves an excessive number of nodes, which can increase the file’s weight or leave certain curves imprecise.
After vectorizing in Inkscape, you select the drawing and export the selection as a png file: Inkscape usually exports it at twice the size and you just need to reduce the drawing, in Krita by 50%.
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Thank you!
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FYI: There is plugin available that work for Krita.
It is available in multiple colors and positioned as close as possible to the original pixels.
However, it may working a bit slowly for a large bitmap.
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