Have you guys seen what phenom( the guy that has brought up the homebrew opengl up to scratch with the performance comparable to the official sdk) has been up to? Not only has he continued to improve opengl on the dc but it seems he has created a new lower level api for faster performance.He made a portal-esque tech demo.

his recent work:

video of it:
[youtubenew]https://youtu.be/YX9h7NcudV4[/youtubenew]

The new opengl for dreamcast he released a few months back: