Hello everyone, I'm an artist and new Quill user, One thing I've noticed that it's usually hard to put stroke in right position. It could look nice from the one view angle and completely wrong and crooked from another one because It's hard to feel the distance from the viewers angle.
Adding atmospheric perspective or some kind of customizable fog probably will help to control depth aspect while painting.
One more thing I've noticed that sometimes it's hard to locate cursor when you try to buildup shape with the single color. And it's hard to make it accurately without gaps, because strokes on background and foreground have the same value and color. (For example, if you'll try to paint spherical shape you'll have hard times filling out all the gaps. ) Aerial perspective could solve this issue too because with it you will clearly see the difference between background and foreground.
Regarding the grid. I think it could be very useful tool for artists and designers. Here is what I came with manually. I've used .png file of grid and placed planes manually which was hard to do. Short video capture of my grid: https://www.dropbox.com/s/c00lt39e7pxumpq/animation00000%20%282%29.mp4?dl=0
What about a layer option that, when enabled, covered every paint stroke in a mostly transparent grid pattern with stroke edges hilighted so we could see exactly where paint strokes were placed? That would be dope.