That's not how I'm doing it. For small codebooks, I only use the end of the codebook, so the entire texture remains contiguous. Oh. You're a bloody genius mate :lol: I did do something like your link for the PVR accelerated Gens4All. I used a nontwiddled ARGB4444 VQ texture to store the tiles, then...

Thanks again TapamN! I'll check this out when I have some time. Btw, do you have a github/gitlab/other? My game framework library auto-downloads its dependencies so it would be nice to add a download for this without the 7-zip requirement. That said, its not urgent and I'd much prefer to get that cd...

(although there is a hardware bug with bi/trilinear when using compressed 8/4BPP with mipmaps) Interesting. I guess tvspelsfreak just didn't test it and accepted the SEGA docs like the rest of us did. Glad you tested it. And yeah, makes sense with that palette+compressed+X-linear bug, since SEGA di...

I've been distracted with other things, but getting back to the driver and decoder is my next task. I ran across a post mentioning FFMPEG's ELBG for VQ compression, tried using that for Dreamcast VQ, and it worked very well. I ended up making such good progress on getting a texture compressor/encod...

Well, you could use a loop, say for the windows console: for %f in (*.png) do pvrtool -i "%f" "%f.pvr" or something similar to that. Also if you want to, you could use a tool like "Texture packer" to combine the pngs into 1 png, then convert that to dtex. Just be aware...

Haha, me from 2018 would have loved this, but these days I'm using Windows.

Either way, thanks for making this

In pvr_setup() you override some of the context struct values. gen.clip_mode is obvious, but I was wondering if there was any particular reason you modified gen.shading , blend.src and blend.dst ? Are they personal preference or is the user clipping affected by those parameters? Shading is set to f...

Twada wrote: ↑Wed Jan 20, 2021 1:28 am I got a hint about alpha blending in the previous topic "How do I subtract with alpha blending?"
(https://dcemulation.org/phpBB/viewtopic ... 9&t=105628).

Thanks to that, all the processing is completed on PVR.

Ah yes, that's right

Nice stuff. Although I don't think I was involved in helping with this, maybe you mean someone else?

Your idea to do the clipping in software when the TA's user clipping won't do is probably the best. Doing clipping with modifier volumes complicates basically all rendering code. Doing clipping manually only has extra complexity when clipping needs to occur. It would also be the more efficient meth...

Hello. I want to subtract the pixel color by a constant value. But, PVR alpha blending only has add and multiply. Is there subtract techniques with PVR alpha blending? Thanks! I'm a bit rusty on my computer graphics terminology so I don't really know what "subtract" pixel colour means, bu...

And if you want to enable oargb you do this pvr_poly_cxt_t cxt; pvr_poly_hdr_t hdr; pvr_poly_cxt_txr(/* stuff */); pvr_poly_compile(&hdr, &cxt); hdr.cmd |= 4; // Enable oargb Here's a demo showing oargb for shading (It was made by TapamN!) : https://github.com/Protofall/Homebrew-Tests/tree/m...

Some people asked the same thing over here https://www.dreamcast-talk.com/forum/vi ... =5&t=13223

tl;dr Its probably possible, but the code needs major modifications. (Also Windows CE isn't an OS like normal Windows, theres no point making homebrew with WinCE)

Hello, I've been using lxdream (on linux) and reicast (https://github.com/reicast/reicast-emulator/releases) to do testing and some debugging using simple printf and whatever error message comes out of the terminalk. Obviously the real test at the end of the day is if it works on my DC. I don't kno...

I thought there were more options for 3D engines, I'm guessing there are a bunch of older 3D engines out there that aren't being actively developed/supported anymore that led me to believe that. If I was a bit more confident in my programming ability and knowledge of the Dreamcast hardware, I might...

" Online play is something I would like to explore. At the very least, an online leaderboard for time trials and LAN multiplayer so people can set up a VPN tunnel to connect if they want to. " I too would like someone who knows more about KOS to comment on the possibility of it. There's no...

Remaking a basic-ish game can be fun. I did that with Minesweeper and Dr Mario. How familiar with DC programming are you and what "engine" do you use?

can't find the discord channel you are speaking about. so libGL should be replaced by libGLdc into kallistiOS ? seems confusing ^^ Here's an invite link https://discord.gg/BDCbJP I think eventually GLdc will be added to the KOS ports and replace libGL, but it hasn't happened yet. Also note if you w...

hello in 2020 ^^, i'm using immediate mode atm and got issues with transparency when using PVR_TXRFMT_ARGB1555 non twiddled. Alpha information seems ignored , blending is enabled and blendFunc GL_ONE_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA the problem may come from glTexEnvi(GL_TEXTURE_2D, GL_TEXTURE_ENV...

This is my jam https://www.youtube.com/watch?v=dQw4w9WgXcQ