This procedural gfx should run fine regardless of BASIC on/off.

This intro should run from loader (e.g. SIDELoader) or from DOS (e.g. DOS2.5).
It was tested on real HW (2 different machines - thx Gorgh, Piesiu and Tr1x!).

It takes approx 22 seconds to generate the image (with raycasting the sky being the longest part). Progress should be visible on the screen.


