Wireframe raycaster

[0xC0DE]

Wireframe raycaster for Acorn Electron and BBC Micro.
Video only at the moment (running on Elk): https://www.youtube.com/watch?v=C2SSCCcKdY8
Runs about twice as fast on Beeb of course.
Don't know where this is going but it was good fun getting this to work in the first place

[tricky]

Looking good and faster than I would have expected.

[dominicbeesley]

Wow! How did you do that

[0xC0DE]

Thanks tricky and dominic!

I started by reading the tutorial at https://permadi.com/1996/05/ray-casting ... -contents/.
Then I wrote my version of a raycaster in C (using floating point at first, then fixed point integers only), which I subsequently translated by hand to 6502 asm. What followed was a long process of optimisations (tables, tables, tables) and sacrifices (like choosing a smaller viewport and using extra fat vertical slices). There is more info (and work in progress videos) on my Twitter timeline.

[0xC0DE]

Now with shaded walls and floor https://www.youtube.com/watch?v=wR54miNxQDg

[tricky]

Even better

[Cybershark]

That is quite some tech demo!

[fizgog]

Excellent work as always

Have you seen this for the C64 in C with source code?

https://drmortalwombat.itch.io/minotrace

[0xC0DE]

Excellent work as always

Thank you!

Have you seen this for the C64 in C with source code?

https://drmortalwombat.itch.io/minotrace

Wow, that is really fast and impressive. It is not for the first time I wish the Electron had a true text mode for this kind of thing.

[tricky]

Jafa only, that is if it really gives mode 7 as I'm not really sure what it is
I guess like me and my games a base electron is a must. I have done a couple that need sideways ram, but I guess that is on a par with a plus 1 - assuming that is the most common expansion.

[0xC0DE]

I guess like me and my games a base electron is a must.

I'm sure this will sound familiar to you: I like diving right into the tricky, technical bits and almost always want to see them work on a vanilla machine (Electron of course, and if I can be bothered the Beeb as well ) That is where the challenge and fun is for me.

[tricky]

Yep, 100% and when most of the reward is in the doing, you have to enjoy it.
You may have noticed that my "secret" project is B/B+ only but it does need two ROMs/SWRAM banks.