lol lets not get ahead of ourselves guys .

Also i added some preliminary shooting:

Is Weregoose still around? Math genius.

If you wanted to save space you could still use a 'tilemap' for the collision component of the track. Its never drawn but each component of the track (each 16x16 segment or whatever size you want to use) would correspond to a 'tile' in the tilemap that you can index to see if there is a collision or not.

You could save space even further by storing multiple 'collision tiles' per byte, 2-bits per collision tile would give you 4 possibilities (walkable, medium, slow, collision).

Then again i would still recommend a tilemap for the tracks especially if you have lots of repeating features. Otherwise you are going to be wasting a lot of space.

Sorry when i say 6-dof i meant '6-degrees of freedom' as in you can reliably move in all directions in 3d space.

Just wondering what method you are using to store your rotations for each object? Euler angles? And will this be a full 6-dof engine? (like walking around engine or flight-sim?).

Also cohen-sutherland is a pretty straight-forward method for clipping lines if you're interested.

Either way it looks nice and fast! Great work .

I was also thinking that maybe you can borrow some of the graphics from Duck's old Grayscale Zelda demo (made in 2003!):



The graphics and some code is available here: http://www.ticalc.org/archives/files/fileinfo/295/29519.html

That said the grayscale routines need an overhaul as they are severely outdated.

Hehe i thought as such .

Ive been known to dabble in z80 ASM over my time, is there anything in particular you need help with?

I have managed to get the 3D tracking routines working for the most part. The screenie below has a tie fighter flying around its target, which then changes, in which case it reorientates and flies to it instead.



This routine is a must for game scenarios as objects can now find their targets in 3D space. It was a bit of a pain to get working lol!

Also here is a camera lookAt test:



Note that the stars are a quick hack and arent relative to the camera and there is no object sorting as yet (there is polygon sorting but its confined to per-object).