Unbelieavable! Hats off to you sir.

Very impressive! It's definitely too slow for an action game, but might make a great RPG or something more slow-paced.

@BluntEversmoke

2 ай бұрын

A mechsim would totally rock on this.

Oh my god those friggin gnomes have infiltrated C64 demos too wtf

Fantastic work!

This frame rate is very impressive considering this is a C64 with a slow 6502-based CPU.

@HelloKittyFanMan.

7 ай бұрын

Why, when the update rate of those other 3D-based demos (the ones that came more from the copy-protection-crack community) are so much faster with more colors?

@thek3743

7 ай бұрын

Talk is cheap show a link

@HelloKittyFanMan.

7 ай бұрын

How should they do that, @@thek3743, when these days YT prevents it from showing up except when the channel owner posts it?

Nice tune as well!

Really incredible! Congratulations and thank you for sharing

Simply amazing!!! Beautifull 💚

Wow, this is truly amazing. I’m going to have to buckle down in the coming weeks to look closer to what you’ve done here because it’s simply mind-blowing. Thank you so much for pushing the envelope with your great work and creativity. Because it’s not clear to me, is this a screenCapture of you playing through your creation (demonstrating user input and interaction) or, is this a demo? Thank you!

@strictions

Жыл бұрын

It's possible to walk through this level. Actually it's more some sort of an early game engine than a demo. All the best!

Next: DOOM on C64. It is possible to make it run faster, using sprites as 3D background

@pedazodeboludo

Жыл бұрын

There's a VIC-20 doom, I've tried it... but the image quality is not great.

Stefan you are the Bill Harding (Bill Paxton in Twister) of the plus 4 game dev community ie you're THE EXTREME 🤩😍🤩😍incredible work wow

Crazy!

cool stuff

Dreams come true

@strictions

Ай бұрын

Thanx!

I LOVE C64 👍🥂🎩

I'm impressed. The c64 is just 1Mhz and has no MUL instruction, I cannot begin to comprehend how complex 3D math will be in 6510 asm. Then you have texture mapping too... Great work. Is source available?

@punpcklbw

6 ай бұрын

In fact, you don't need a mul instruction as long as table lookups and bit shifts are working. As 4*x*y = (x+y)^2-(x-y)^2, it can be done in one addition, two subtractions and two table lookups (initialize a table of square numbers, then right-shift the results to any scale you need). Still, it would be tricky to mupliply/divide large numbers on a slow 8-bit chip.

@PhreakDarkSoul

4 ай бұрын

Arent MULs just multiple ADDs?

@xtokumaru

4 ай бұрын

@@PhreakDarkSoul Conceptually, yes, but if you implement it that way, the performance will be all over the place. A common approach is the "shift and add" method, which requires at most N ADDs, where N is the number of bits in the multiplier. But even that can be too slow for real-time 3D stuff like this, so something involving lookup tables is much more appropriate.

@strictions

Ай бұрын

I think I Open Sourced the source already. But maybe you know a propper location to put it on?

Wow, like demoscene hackers this is amazing

Remake 'Lords of Midnight' with this engine

insane coding!

Really cool. Is there any chance to improve framerate to at least 3-4 fps?

@strictions

Жыл бұрын

Yes of course. This is a general implementation of the "Doom Engine" (BSP Tree).. If you limit the possibilities it can reach a lot more fps. Reducing the visible area alone gives more fps like in the plus/4 video.

Is it a vanilla c64?

2 fps? C64 rul3z 4e4! =)

Would an ASCII render speed it up? It would make the pre-rendered sprites take up more space...

Jawdropping. I've seen several 3d engines for C64 but this is most promising. It's impossible to make full-featured Doom-like 3d engine for an 0.9 MhZ 6502 64kb - with textured walls, floor heights (animated!), sprites with alpha-channel and skyboxes... but you somehow managed to do it and I'm shocked. Maybe if you make viewport smaller (by adding HUD art at the sides and top/bottom) and squeese another couple FPS?

Looks like raymarcher, but your frame rate is very high for bitmap - is this somehow using chars? Super cool code dude, if U can get to game logic and keep the frame rate this will be an awesome engine. Looks like you're mostly there.

@vytah

Жыл бұрын

It's single-buffered bitmap, with what appears to be double-height pixels (so effectively 160x100)

@strictions

10 ай бұрын

​@@vytah Internally it's 160x100 in fullscreen version.. I don't remember why I did that.. Actually it's all based on eor filling and y resolution is no problem at all (except for memory and speed). But anyhow.. It's a doom engine on C64 and Plus4. @joecincotta5805: No Raymarching involved and no chars (in this version) just 160x200 bitmap mode. Double Pixels where because I intended dithering at start to have more colors (and it was charmode). But it looked much worse with dithering.

@vytah

10 ай бұрын

@@strictions Interesting. I wonder what an 160x200 version would look like (and how well it would run)

@agpxnet

3 ай бұрын

@strictions, eor filling? So you've no overdraw? How you get rid of overdraw? And what about clipping, is it performed in screen or world space?

Same speed like old vector graphic!

It was coded in assembly language?

@strictions

Жыл бұрын

Yes!

@thek3743

7 ай бұрын

No in phyton

@bigredracingteam9642

7 ай бұрын

Oh, I thought it was an Electron app. @@thek3743

Fullscreen as in no borders?

@strictions

Ай бұрын

No it was meant as 320x200 (so to say)

Link download page not found?!.

@strictions

Жыл бұрын

Corrected! Sorry for the inconvenience!

Is it better than Castle Master though?

@strictions

6 ай бұрын

I love castle master! Thanks for the hint!

@strictions

6 ай бұрын

Especially the music of castle master is a master piece!

Trippy as fuck weird virtual world on a computer that can barely do sprites

Use a Supercpu, it'll run faster and smoother.

@AgeofReason

Жыл бұрын

Not stock is no fun you do it homie or just playback this at 2x for real time simulation

@covidenslavement8918

10 ай бұрын

C1​​​28 mode at 2 MHz

@strictions

Ай бұрын

There was a SuperCPU version (c64) actually just LAX and others (illegal opcodes) where removed.

Even if this is technologically impressive, it is not going to dazzle many people. I don't really see the point. With modern tools, algorithms and dev tools we can do almost anything with old hardware. There is no comparison to the situation developers had in the 1980's. I was part of the demo scene myself back in the day, and I enjoy watching demos on old retro hardware, but this is just a very bad fit.

@strictions

6 ай бұрын

Nice view, thanks!