The port to 8088 is really interesting. I can't find the minimum system requirements for the original Wolf 3D, but didn't it require a 386? (I'm pretty sure it used a 32 bit DOS extender).
yeah 286 was minimum. I had an 8088 XT and it would not run.
However... there is a little known game that id Software did release that would run on an 8088. It's called Catacomb 3-D[1]. It was basically Wolfenstein with goblins and skeletons. Pretty sure that engine went on to become Wolf3d.
Despite the Wikipedia page saying it runs on a EGA I had a CGA monitor and was running it. Thinking I might be losing my mind I downloaded the source code on archive.org[2] and sure enough there is reference to CGA code all over the place.
Wikipedia, in my anecdotal experience, is wrong all the time on mid 80s to mid 90s minutia. I probably sense it because that was my peak era. But good luck finding a source besides, “that’s not how it happened, man…”
I tried it out on an 8MHz V40 (think V20 with onboard peripherals), and it delivers five frames per second. Definitely as smooth if not smoother than Quake on a 486DX. (lest we forget that it was the Crysis of its era since hardware 3D acceleration didn't yet exist on most consumer-grade kit)
The dithering (on a VGA card and modern LCD) sort of makes it hard to view; an EGA port might be interesting as 16 colours might be enough to make it workable without dithering. Although if they're using 2x2 blocks for dithering, they'd be effectively cutting the number of "pixels" to render by a factor of four, and that might make it viable.
I ran wolf just fine on a Tandy 2600 which featured “10 mhz of Intel processing power” according to the instructions. Spear of destiny too if I recall.
Definitely was a 286. I had a 486sx and loved the game. I took it over to a friend who had an 8086/88 but had a CD-ROM, which was quite cool at the time in the very early 90s. Even now, 30 years later, I remember the screen saying it needed a 286. He was crestfallen. It was the first time we experienced our computers being “different” other than the CD-ROM.
Wolf3D as I recall could run on a 286 but it required a "fast" late model 286 (like the 16 MHz part from AMD) to run at an acceptable frame rate. It was also quite choppy in frame rate on like a 386SX/16.
Totally off the top of my head, but I'm pretty sure Wolfenstein 3D was real mode, because I remember reading that Rise of the Triad was based on the Wolfenstein engine and one of the changes involved converting it to protected mode.
Exactly. I had a 286 for a long time and then jumped to a Pentium. In between that period I missed a lot of games which would only run on >386 especially Doom. I played a lot of Wolfenstein. My first walkthru was with one life and lots of lots of saving and reloading, because I didn't realize you could press m to use a medipack, HAHAHA dang!
It was a real mode program. It was written to VGA modes (and IIRC soundblaster audio?), but as long as you had a 8 bit VGA card (they did exist) it would in principle run on an original PC. ID surely never tested or supported that configuration though.
The README in the project talks about "8088 support" being added, but the only thing I see in the commit log is the replacement of a stray 286 assembler directive.
You can replace the 8088 in the original PC with a NEC V20, which provides these extra instructions. IIRC the CPU detection code in Wolf3D has to be patched too to make this work, because it only checks for 286+ and would exit with an error message.
I think hitting F5 and using the arrow keys in-game should allow you to decrease the size of the gameplay window to try to increase performance. You might try that if you haven't already...
Yes, specifically IBM PCjr-ish clone. Compared to IBM PC 5150 it has 2x slower access to the first 96K of RAM due to “integrated” nature of its non-standard take on CGA. But, the rest of RAM is actually faster than IBM PC because it is a modern retro computing extension card made with fast SRAM.
It has TTL RGBI and composite NTSC outputs. The latter is actually very interesting in that it can produce 16-color images using color smearing effect on NTSC TV. Many games from the period used this to achieve more colorful graphics at the expense of dropping to 160x200 resolution. OP port of Wolf3d is also supporting this mode.
I am working on FPGA-based converter to be able to show RGBI and composite CGA on modern VGA screens.
There was originally going to be an EGA version, some of the original art was released a while back. Supposedly an EGA alpha version was released as well.
This is absolutely amazing. I seem to recall ultima underworld came out a few months before with a similar ray tracing engine, but it wasn’t open sourced so it’s not possible to try
Though the Ultima Underworld maps were made out of a 2D grid, the rendering was done using texture-mapped polygons - and not just that but they even used dithering for more light variations. While pretty much all objects were rendered as 2D sprites, there were a few 3D polygonal objects too.
Wolf3D has a much more limited renderer - only walls are rendered, no lighting (the shaded side for walls is actually different textures) and the viewport is fixed at the middle of the walls for example. On the other hand Wolf3D was much faster and responsive and had a larger render window than UU.
UU itself was not open sourced, however System Shock 1 which is based on the same engine was[0][1].
