How to avoid anti-aliasing when scaling sprites and costumes

[ego-lay_atman-bay]

Yes, by using this

Is there any way to scale / stretch a small costume without it getting blurry?

Taking Brian's basic algorithm, I've come up with this sped up version ProjectName=pointResize [edited to add custom reporter version]

It is kind of slow, but it gets the job done (there's a custom block in the looks category).

You could run this, store the upscaled costumes in the project and use those instead. Of course, you could upscale them in an external editor, then use that instead.