nice that you have implemented ‘hybrid scanlines’. 🙂
Would you mind to share the code on a new GitHub branch at this point of development? If you have the feeling that just fine-tuning has to be made, I would love to include that into the pull request; and make it user selectable such that each user can select the flavour he likes. I’ve added a menu point anyway to compare directly with the ‘old’ method.
Also, would you mind if I use your implementation in my N64 project?