Post screenshots of stuff you're working on!

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Post screenshots of stuff you're working on!

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Luigi Thirty: Apr 30, 2006; Emergency confection port.

Fortunately SS13 sprites are almost entirely 32x32 and fit nicely into a 4bpp graphic setup. Yes, that includes...

# ¿ Sep 18, 2017 03:59

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# ¿ May 17, 2024 07:18

Luigi Thirty: Apr 30, 2006; Emergency confection port.

Cool! You could do something similar with the Amiga's hardware sprites - people figured out how to get the video chip to move them to the right in the middle of a scanline, letting you repeat a 64px background across the screen.

# ¿ Sep 30, 2017 18:22

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I converted Tyrian's ship graphics to Jaguar format and added a sprite bitmap layer to my program. They're available under a CC license now so I'm gonna figure out something cool to do with them.

# ¿ Oct 2, 2017 22:43

Luigi Thirty: Apr 30, 2006; Emergency confection port.

https://twitter.com/LuigiThirty/status/941944560195956736

:toot:

# ¿ Dec 17, 2017 23:51

Luigi Thirty: Apr 30, 2006; Emergency confection port.

My Jaguar 3D engine is coming along.

- I wrote a model importer in Scheme that turns standard OBJ files into a binary format for easy loading by the GPU!
- Scenes can contain multiple objects! (This was hard.)
- The camera can move and rotate in all 3 dimensions!

It runs at a whole 35FPS with 3 rotating cubes on screen.

https://twitter.com/LuigiThirty/status/946913810148941825

(The black lines are for debugging the renderer)

# ¿ Dec 30, 2017 21:25

Luigi Thirty: Apr 30, 2006; Emergency confection port.

It runs in a Jaguar emulator. The emulator isn�t totally accurate to all the quirks of the hardware so it doesn�t quite run on my Jaguar flashcart yet.

# ¿ Dec 31, 2017 00:02

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I started writing a DOS game and I think I accidentally wrote a windowing system instead.

https://twitter.com/LuigiThirty/status/1027103445080268800

# ¿ Aug 10, 2018 09:21

Luigi Thirty: Apr 30, 2006; Emergency confection port.

Spraynard posted:

Spent some time learning how to use this logic analyzer to track down a crash I'm seeing in hardware, but not in emulation, for a hack project I'm working on. This has been driving me nuts and without a repro case on anything but actual hardware it's been really hard to debug. I finally get it going and the addresses seem sane, and then it just hangs on a write to $5FFF88. It hasn't run into the weeds and the poo poo, but it's just sitting there. Arguably a hardlock, not a crash.

From what I can tell a write address is underflowing into an unhandled region of memory. On one variant of this hardware and in the emulator this is a don't-care condition and everyone's happy, but on this particular board /DTACK is never asserted so the program hangs. Going to test out a patch that jumps to a small range check and makes these writes conditional.

In theory I could short /DTACK to ground and get the program to jump past this bit. I couldn't test my fix this morning because I was out of blank EPROMs to burn; we'll see after work.

What kind of board is that? I don�t recognize it

# ¿ Aug 29, 2018 07:23

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I got flat shading and camera movement working together in my Glide 3D engine. Now stuff is properly lit wherever it is in the scene. (I think, but it�s close enough.)

https://twitter.com/LuigiThirty/status/1036455871587471361

# ¿ Sep 3, 2018 08:22

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I bought a TinyFPGA last month and decided the best way to learn Verilog would be to design an 8-bit computer.

16MHz processor with a 6502-style architecture (though compatibility isn't a goal), 1KB of RAM, 4KB of ROM, 9600bps UART. 40x25 text mode display with a simple ASCII plus symbols character set. All hooked up on a breadboard with composite video out (tested on an old PVM, this picture's on an LCD monitor). I wrote a little assembler in Python for programming it. Now it's time to write some software for it!

# ¿ Dec 29, 2018 10:33

Luigi Thirty: Apr 30, 2006; Emergency confection port.

There�s no color yet. Just 1BPP. It�s more of a PET than a C64.

# ¿ Dec 30, 2018 06:40

Luigi Thirty: Apr 30, 2006; Emergency confection port.

My homebrew N64 microcode is packed with features.

- Solid-color polygons
- Broken Z buffering
- 1KB display list buffer
- 16-vertex cache

https://twitter.com/LuigiThirty/status/1112516062074097666

# ¿ Apr 1, 2019 01:50

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I want to get this really old graphics chip working with my RC2014. I have a breakout board that I designed but I've also got emulation hooked up in MAME of a reference design (34010 GSP with an 8-bit RAMDAC and 256K of VRAM) that I implemented as an RC2014 card. I got a toolchain going in Dosbox (with help from Bitsavers, who found the C compiler and assembler/linker somewhere) and now I'm able to produce really fast rectangles. I'm doing my usual bit of reverse-engineering Quickdraw, since this chip was pretty much designed to implement Quickdraw primitives in hardware.

https://twitter.com/LuigiThirty/status/1244184548730179584?s=20

# ¿ Mar 29, 2020 09:52

Luigi Thirty: Apr 30, 2006; Emergency confection port.

I can�t seem to find the magic words to find vertical breakouts, but I found a manufacturer of PLCC to DIP adapters (Aries P/N 68-653000-11-RC) that has a few units in stock. Where did you find the vertical ones?

Luigi Thirty fucked around with this message at 02:19 on Apr 3, 2020

# ¿ Apr 3, 2020 02:17

Luigi Thirty: Apr 30, 2006; Emergency confection port.

https://twitter.com/LuigiThirty/status/1250355564678246401?s=20

About 10-15fps on a 50MHz 34010 at the moment. Graphics primitives are in 34010 ASM, the rendering engine is in C for now. Engine operates in terms of S15.16 fixed-point numbers.

# ¿ Apr 15, 2020 10:31

Luigi Thirty: Apr 30, 2006; Emergency confection port.

Blue Footed Booby posted:

I made an incredibly half assed and mostly broken Doom renderer a while back using MS XNA. It's stupid fun to mess around with.

Oh cool, yeah. Doom editor is a fun thing to work on. I�ve got a bunch of Obj-C I wrote for NextStep to do it, lol

# ¿ Jul 1, 2020 10:25

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# ¿ May 17, 2024 07:18

Luigi Thirty: Apr 30, 2006; Emergency confection port.

Athas posted:

That doesn't work in many terminal emulators. If I wanted to use something only pseudo-standard and not widely supported, I'd just use Kitty's graphics protocol, as it's much better than sixel.

Pseudo-standard! I wish more stuff supported vt300 instead of vt100, Sixel and ReGIS are great for TUI.

# ¿ Feb 13, 2023 19:07

The Something Awful Forums > Discussion > Serious Hardware/Software Crap > The Cavern of COBOL > Post screenshots of stuff you're working on!

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