Thanks, best of luck with your engine + project.

This looks awesome! The HarleQuest! engine also started life as using blender as an editor, it got us quite far before we moved on to a custom editor. Near plane tri strip clipping was a headache for us (and Simulant too), but it's doable. There's a paper in one of the Game Programming Gems books ca...

That's really interesting, I'll be curious to see how it all works when it's done. I can't use the leadout to determine the track length because the TOC is merged across both the audio and data sessions when returned by the bootrom syscall. The merged TOC only has the leadout for the last track over...

Hi, I wanted to share the process I've gone through over the last two days trying to understand why the CDDA background music in my game HarleQuest! refused to loop. I came from knowing next to nothing about CDDA or CD layouts and everything I've learned about it has been over the past couple of day...

Thanks so much for this! :grin: A lot of your points confirm things I've already learned (or at least suspected) and some points are new to me. Sorry my follow up has taken so long. I would have responded sooner, but a new Zelda game distracted me... Understandable! I haven't tried it yet, but have ...

I decided to make a benchmark to try and get a deeper understanding of all this. Starting with the KallistiOS 2ndmix example, I made some modifications so that it will render N cubes, letting the user switch between 3 different submission methods: A) KOS PVR API (the pvr_prim() functions) B) Store Q...

I see! So just to make sure I understand: You can write to the first SQ, issue PREF, go do some other work like transforming a vertex that's already in cache (FMOV, FTRV, etc), then write to the second SQ, and it's only when you PREF the second SQ (perform the second burst write) that the CPU will s...

I've had some feedback on the Simulant discord about how SQs don't execute in parallel the way I thought they did. This line from section 4.6.3 of the SH7750 CPU manual was confusing me: While the contents of one SQ are being transferred to external memory, the other SQ can be written to without a p...

Hi, I've been working on improving rendering performance in HarleQuest! and am trying to wrap my head around some of the different options. I read this: http://yam.20to4.net/dreamcast/hints/index.html (specifically the Optimizing TnL Loops bit) and have a general plan, but wanted to check here in ca...

You can write a program for the Dreamcast that draws a bitmap to the VMU LCD, waits briefly, draws another bitmap, and so on. Drawing a bitmap to the VMU is something I did when working on NesterDC-standalone - maybe that would be a useful reference? Loading BMP : https://github.com/kilgariff/Nester...

This is great! Managed to get VSCode set up with remote debugging and intellisense on Windows 11 & WSL2 using these instructions. It's way easier to step in and see what KOS is doing under the hood now. Thanks

BlueCrab, you're right - if I exit from my game's main loop, it drops to a black screen. From there, I can upload a new .ELF and run it even though there's no DCLOAD prompt. Thanks for the help, really takes the sting out of waiting. bogglez, thanks for the links. Live code reloading while the game ...

Hi, I've only just started using dc-tool but tried passing -g and got "Starting a GDB server on port 2159". I built dc-tool 1.0.5 from the SourceForge repo: https://sourceforge.net/p/cadcdev/dcload-ip/ci/master/tree/ (latest commit at the time of writing is 25114e). Here's the binary I'm u...

I've recently bought a dreamcast broadband adapter (BBA) and set up DCLOAD-IP + DC-TOOL 1.0.5. I can send my compiled .elf and have it execute on the dreamcast, but after making any changes to the code and rebuilding I need to reboot the dreamcast to dcload in order to upload again. This is of cours...

I just tried the 2ndmix example and it works on nulldc and on hardware. 2ndmix doesn't link with GL or any other libraries, so maybe the toolchain's libraries (kos-ports) weren't set up properly. I'll try re-building the toolchain using the install script and report back. Thanks for the help :) Edit...

I'm a newbie to DC homebrew, and I'm having some difficulty getting the KallistiOS basic GL example to run. I've been trying https://github.com/ljsebald/KallistiOS/tree/master/examples/dreamcast/kgl/basic/gl with no success, regardless of whether it's running in an emulator or on hardware. My dev en...