Can I lock a brush rotation to the canvas/camera?
Say I have a brick, or cloud brush, and I want it to always follow the paintings horizon line (say when painting grass) - I don’t see any option for this? am I missing something or is this not a feature
You can adjust the orientation in the brush editor.
Michelist
Alternatively you can use assistant tool. The brush settings can be left alone.
You need to remember to Snap to assistant though 
I used parallel ruler for this one
That is a very cumbersome solution if you rotate the canvas often (I do) - I don’t have many videos of me working, but I have one from Sai (sped up 400% so it’s isn’t that bad in reality)
Changing it through a menu is very slow and inefficient, and it would be faster to then jump back to the default position if so.
neither really solves the issue that with many stamps you want them in specific directions.
Currently, I just rotate the canvas to suit it, but it does make certain workflows (as with patterns and specific stamps) less useful.
One solution is to have it to Pen Tilt, Direction, or make say some default brushes with different rotations, but in reality, when I use these more complex stamps that do better when they are on a fixed angle to the horizon, I find it a lot better to just rotate the canvas to the angle I want. Now this works, but it’s suboptimal to having an option that allows them to rotate with the camera/canvas.
This isn’t really a viable solution for me; or while the brush can be rotated to follow the direction, I can do that without these lines.
And making lines for fast stamps, grass, and clouds etc, isn’t really an efficient workflow in my eyes (even if I use these tools for perspective work and they are great for other purposes).
Let’s use another example.
Caligraphy, you make a brush that has a fixed angle and should always be held the same way for the lines.
you might want to rotate the paper, but you still want to keep the brush angle the same as it was relative to the paper.
you can say use tilt (direction won’t do here) but having to draw lines like these for it makes little sense and adds a lot of extra steps.
So now you are better off at just working from the same camera angle and causes issues and makes the work harder.
I wonder if the brush angle is accessible via the python API. If so, then one could at least map shortcut keys to rotate both the canvas and the brush at the same time.
This would be amazing yes ~
Overall the current limitations are still workable, it just makes one style of painting (stamp heavy) more cumbersome and limited, and the same with calligraphy.
