Search found 96 matches

by Vectrex2809
Thu Sep 10, 2020 5:26 pm
Forum: NESdev
Topic: Textured raycaster on the NES
Replies: 2
Views: 554

Textured raycaster on the NES

You've probably already seen this on Twatter, but I'll share it here as well. Here's the textured NES raycaster I made the other day, and this should be it for a while. Still has lots of room for improvement (improving fisheye correction, fixing the last clipping issues) but I need to work on other ...
by Vectrex2809
Mon Apr 27, 2020 12:13 pm
Forum: NESdev
Topic: NES Rotozoom
Replies: 20
Views: 4182

Re: NES Rotozoom

Hah I see you guys are already dissecting this! I've actually made a version that uses a bit more RAM (32 zeropage bytes) which speeds up the process a bit, but yeah it's mostly math. As for how the data is structured, I have sin/cos LUTs with 256 entries, as well as a LUT for every pixel of the pic...
by Vectrex2809
Sun Apr 26, 2020 8:43 am
Forum: NESdev
Topic: NES Rotozoom
Replies: 20
Views: 4182

NES Rotozoom

If you're on the NESdev Discord, you've prolly seen that rotozoom ROM I posted. Well, here it is in all its glory for you to download :)
by Vectrex2809
Sat Jun 22, 2019 9:40 am
Forum: NESdev
Topic: New PPU quirk while swapping palettes mid-frame?
Replies: 3
Views: 6925

New PPU quirk while swapping palettes mid-frame?

So I noticed something pretty odd with my palette swapping routine on real hardware. Sometimes, when I swap palettes mid-frame, the background colour is wrong. https://cdn.discordapp.com/attachments/352436568062951427/592010016844808192/20190623_000309.jpg https://cdn.discordapp.com/attachments/3524...
by Vectrex2809
Tue Apr 30, 2019 1:06 am
Forum: NES Music
Topic: More NSF Requests
Replies: 3028
Views: 1100399

Re: More NSF Requests

Has Hell Fighter been ripped?
by Vectrex2809
Wed Feb 20, 2019 5:26 am
Forum: NES Music
Topic: More NSF Requests
Replies: 3028
Views: 1100399

Re: More NSF Requests

MrNorbert1994 wrote:
Vectrex2809 wrote:Does anyone have an NSF of Mad Max?
Yes.
Mind if you send it my way? I've been searching for it all over the internet without success
by Vectrex2809
Mon Feb 18, 2019 12:08 pm
Forum: NES Music
Topic: More NSF Requests
Replies: 3028
Views: 1100399

Re: More NSF Requests

Does anyone have an NSF of Mad Max?
by Vectrex2809
Fri Jan 26, 2018 12:45 pm
Forum: Homebrew Projects
Topic: Tetrastar-style pseudo mode-7
Replies: 4
Views: 4430

Tetrastar-style pseudo mode-7

Just posting this little idea I had these last 2 days. I wanted to make a Tetrastar style pseudo-mode 7 effect for my menu, and here are the results :)
by Vectrex2809
Tue Nov 21, 2017 5:26 pm
Forum: NESdev
Topic: Procedural level generation on the NES?
Replies: 24
Views: 12558

Re: Procedural level generation on the NES?

I actually did some simple procedural generation on the NES. In Brony Blaster , I randomly generate a path between the rooms, then I randomly choose from 16 sets of 16 rooms depending on how many doors the room has. It's rather simple but it works. - https://www.youtube.com/watch?v=Uyp31O3xSRY (This...
by Vectrex2809
Thu Oct 05, 2017 1:46 am
Forum: NES Music
Topic: More NSF Requests
Replies: 3028
Views: 1100399

Re: More NSF Requests

Was Hottaman no Chitei Tanken ever ripped?
by Vectrex2809
Thu Oct 05, 2017 1:38 am
Forum: NESdev
Topic: Drawing text in CHR-RAM
Replies: 10
Views: 3433

Re: Drawing text in CHR-RAM

lidnariq wrote:It seems to be a pretty common technique — Bisqwit (in analyzing a pirate multicart) found that Konami had done the same for the Goonies title screen.
I know 4 Nin Uchi Mahjong also did this to display a large number of Kanji in an NROM game
by Vectrex2809
Wed Oct 04, 2017 4:26 pm
Forum: NESdev
Topic: Drawing text in CHR-RAM
Replies: 10
Views: 3433

Drawing text in CHR-RAM

So, I fired up Faxanadu and I noticed that game has a pretty interesting way to show text during gameplay in a way that doesn't eat up too much of the available CHR but having a full ASCII(?) fontstet in the data that's being copied into 64 tiles of CHR-RAM. I think it's a pretty cool way to display...
by Vectrex2809
Sat Sep 30, 2017 1:46 pm
Forum: NES Music
Topic: More NSF Requests
Replies: 3028
Views: 1100399

Re: More NSF Requests

http://www.pouet.net/prod.php?which=31326

Could someone rip the NSF off this demo? There are old links floating around but they are long dead by now :(
by Vectrex2809
Tue Aug 22, 2017 6:37 pm
Forum: NESdev
Topic: x and y registers used as a "this" vs. "that" idiom.
Replies: 28
Views: 5963

Re: x and y registers used as a "this" vs. "that" idiom.

I always use X for "this" entity and Y for other stuff like child entities, lookup tables (for entities that move in a sinusoidal way, like moving platforms in REKT ). As somebody else already mentioned, the use of X is great since it lets you use INCs and DECs with your entities, which is amazing f...
by Vectrex2809
Tue Aug 22, 2017 5:21 pm
Forum: Homebrew Projects
Topic: Scrolling text demo
Replies: 6
Views: 4402

Scrolling text demo

So I've been programming my next title, REKT, and I decided to make a little scrolling text screen with a few raster effects on it for the game to show credits, scores, etc. when you stay on the title screen for too long. After finishing it, I feel like it looks pretty cool (especially on a real NES...