i was painting in blender using a stencil brush to paint bump information on my model. it worked great until i hit some button i think and now instead of freely drag the brush around i have to drag it from a side to another and it shows a little white line from the point I start to drag it to the point i relase it. i'd like to return to my free drag mode without having to create a new brush. anyone knows how to do it?
Looks like you enabled Smooth Stroke option:
The smoothness of the brush is driven instead by its shape.
It can be customized by defining points (or choosing one of the six a presets) in the editor of the Curve panel:
On the right, the different result you can get by using each preset.