Hi A.Borzykh,
You are welcome ! At the moment the brush examples are indeed outside of the plugin, because it’s easier for us to manage them in this way.
We can separate the C++ development from the Blueprints so if someone is asking for a specific brush, we just have to update the. zip file.
This might evolve in the future though.
By the way, if you keep having problems with the “undo”, let me know, especially if you can reproduce them : it’s a complex development so any help will be appreciated by our developpers.
Now about the speed of brush following the actual stylus movement. There are a couple of elements to take into account, I will try to cover them step by step :
1- the choice between “Billinear” or “Nearest Neighbour” resampling method.
- Nearest Neighbour gives less quality but is less CPU resources consuming.
- Billinear gives a much better quality but are more CPU intensive.
(other interpolation methods do exists but are not implemented yet)
The choice really depends on your purpose :
Are you drawing something rough with a very small brush ? sometimes nearest neighbour is the best choice to avoid blurry lines and keep a good reactivity of the tool.
Do you just need to rotate a photo once ? you have to use billinear.