Arghh... I was planning to do it for Blender as well.I hope they will add the ability to make our own modifiers in the future. (Whatever it needs to be in python or C/C++)
Quad Remesher is not violating Blender's license. The add-on is written in Python and open. The Quad Remesher algorithm is called externally via input/output. There are more Blender add-ons that work this way, such as the Blender bridge to the V-Ray renderer.
What's with the EULA pop-up in a Blender addon for activation? Never seen ANY Blender addon, paid or free to have this kind of system. Isn't it also a little bit against the Blender's GNU GPL license too? I've bought few addons and tools for Blender before, but they've always worked out of the box without restrictions.…