Basic question about Fresco pixel and live brushes

[Babington. Co]

If I paint an object in Fresco with a pixel or live brush, can I scale the object up using the move scale tool, without the object becoming pixelated? Thanks for answering this very basic question. I couldn't find the answer in others' posts.

[Michael J. Hoffman]

You can scale it up to a degree without pixellation being noticeable, but pixel and live brushes are in fact pixel based, and once applied, they are rendered at the document resolution. So, you can give yourself some flexibility by making sure your document is higher resolution to start. But you can't scale something from tiny to full canvas without introducing artifacts. 

If you truly and routinely need scalable artwork, vector art is better for that, and possibly even consider something like Illustrator that is fully vector. The trade off is going to be the scalability of vectors vs. the painterly appearance of the live brushes in Fresco, which are pixel based by design and inherently prone to artifacts when scaling. 

[Babington. Co]

Thanks so much Michael. This is my first time painting in Fresco so progress was slowed last week by my learning curve.

For this picture book project, I definitely prefer the painterly look. Being a print project, I set up the 8 files with 350 dpi. After drawing their compositions in vector layers I'll ultimately hide, I began painting in pixels. Approx halfway finished painting the first spread, that question occurred to me of enlarging some created objects, snd I realized I needed to understand this in general. I was hoping that when using the move tool on a pixel layer to scale it up, Fresco would automatically adjust the pixels to the 350 dpi setting, so that I'd have that flexibility with all pixel layers, just like making such adjustments in real oil painting. Your answer indicates that it doesn't, but that a small enlargement works. Can you clarify how much roughly? Is 10% ok? Or can I simply tell if a scaled up object will print pixelated simply by the screen presence or absence of pixel artifacts? 

Also, what if I now increase the dpi on the files from 350 to 600, including this one already painted at 360 dpi. Could I then scale up the pixel layers already created approx 10%, without pixelization of the brushwork rendered before the dpi change? 

Of course 600 dpi will make the files large but I shouldn't have app performance problems if they are stored in the Cloud. Perhaps I could also lower each finished file's resolution back to 350 or 300 in Ps before placing in the InD book layout, although I'm not sure if that's an issue once exported as PDFs for print.

Anyway, thanks again Michael for your input!