88387e3a82
This adds the randomization options for radius and opacity (strength). Instead of pure white noise (like in GPv2) this uses perlin noise to make the effect less jagged. The scale of the noise (in screen space) is hardcoded to roughly fit GPv2. It could be exposed as a setting in the future to get noise that changes slower/faster along the stroke. Pull Request: https://projects.blender.org/blender/blender/pulls/123715