how to setup the opacity in the stencil brush mode in blender 2.8 I'm trying to make the projection painting of the face texture over the old one,but the new image texture is not transparent enough and I'm not able to see behind. How can I make it more transparent ? thanks...
You can look in the properties panel under the tool and see the panel 'Display' and open that, and there you can set the stencil brush opacity and toggle it to disappear on stroke.