Bleank

Purpose:
Acts like a new shape; wormholes!; retro accents.

Parameters and behavior schemes:
Only thing tricky here was the rotation again. I was trying to get the brush to oscillate about the direction you draw, and the sinus function seems like a safe bet. Would get weird results drawing to the left (BI sees this as 0 degrees). If the sinus node isn't offset then the result could be a negative number, and the lowest allowable rotation boundary is 0. Check out the workaround if you like.

Comments on use:
Nothing unusual here.

Hope you like it.



From left to right - spiral, fluid, retro:

Brushes

Here's a fun shader from this group. To get the separation to happen set the low size boundary to something less than 8px (defaults to 3). The snowflakes are from using a shape with either the x or y scale set really low. Can't test how it actually works with a pen, but there are behavior schemes copied in for one. Let me know how it works!

nothing more to say.....good work man

Many thanks