Demos of the Week: Shaders on Mesa

@kas1e



https://www.amigans.net/modules/newbb/ ... id=161802#forumpost161802

@kas1eQuote:

I tested it—it's really great in terms of color—averaging 100 fps and never dropping below 60 fps in windowed mode......and yes, the demo is definitely worth playing on the Amiga. Thanks yeahhhhooooooo

@Maijestro
Quote:

Unaligned_fix version, right ?

@All
Found why it fail on SAM460 : missing GART :( Beta version with GART works fine. That can be fixed in 3 ways : in MESA, so to have the same fix i apply for the RadeonHD 3.7 which not have GART, by making SAM460 patch, or by add workarounds to demo.

@kas1eQuote:

I tested it right away with the fixed version because I'm familiar with the problem you described and have seen it often in crash logs. It would definitely crash on my system as well.

@kas1e

IMHO: if GART is "fixed" in those beta RadeonRX/HD drivers, then maybe wait until they are availabe to the public. Hopping doesn't take too much time.

@javier
I hope you not for real :) radeonrx driver with gart for sam boards were done about 2 years ago by Hans, but its AEON-Mattew, so forget about. There other solutions already, soon there will be some more info.

@kas1e

What radeonRX version beta are you talking?
I have/use v2.23 AFAIK, last beta that on enhacersoft pack came,

@kas1e

I thought it was about a year ago?
i also read it doesn't actually do much for performance on the sam460.
Although I suppose if it helps things to actually work, that would be a help.

The latest Enhancer pack with presumably that updated driver was due out before last Xmas as announced by Trevor at AmiWest.

Cheers

@Javier
2.23 wasn't real latest beta, there were some others after.

@TiredOfLife
Quote:

Time fly.. Just checked, it was Marth 2025 for beta version with GART enabled for SAM => 1.5 year ago.

Quote:

It didn't improve situation much, that true , just in some areas. For example some Irrlicht engine examples jumps a bit (like from 20 fps to 25). Or like Cow3D test case. But then Spencer didn't changes at all. Other things where CPU much involved also didn't help. But still, it better, even a bit faster, and, things which need gart works at least.

Quote:

Hoping it will be ever released after it wasn't for so long mean (for me at least) it will be never released, or, when no one will need it. At least, i didn't hope from anything from AEON-Mattew anymore. Other ones may want to wait some years of course :)

If someday they will release something, good, if not - we will have soon necessary replacements/fixes/whatever.

@All
Can any of you who have SAM boards and RadeonRX 2.12, tell me what size of the file you have ? (i need that to know if all of us have the same exactly binary). Thanks a bunch !

@kas1e

RadeonRX.chip : 1 772 772

@K-L

Same for me.

Cheers

@K-L, TireOfLife
Thanks!

@All
I reuploaded ChaosTheory with alignment fix on os4depot (in upload query for now), and those who want it to check on Sam460 boards, check this out : https://www.amigans.net/modules/newbb/viewtopic.php?topic_id=10177

@kas1e

Defo worth the wait, really nice demo.
Really appreciate the effort it took to get this running on a Sam460.

Cheers

@All
New one. This time is quite popular German group Farbrausch with their Theta demo:



This is not the best of their ones, but one of good ones. All the info in the readme inside of archive in os4depot, as well as under the video on youtube. But what for sure is that ones who like those demoscene prods, can expect other ones from Farbrausch too, as all the hard work on their engine already done.

Recommended for maximum fps is x1000 and x5000 (to have 60-300fps), sam460 even with gart will be not good: some scenes will be around 50 fps, some will crawl to 10.

@kas1e

Can I ask how the hell you managed to record
video on OS 4.1?

@DigitalDesigns
I use LGP 2 Plus. It have ability to record 1920x1080, 640x480 and some others: it can save in hardware mp4 on sd card and via usb-to-pc where you can grab by OBS studio. Through when you record on sd card without pc involved and as our drivers didnt have hdmi audio you need to record audio or externaly (i use own ahi live recorder tool) or just via OBS-studio/usb way which i use mostly.

@kas1e

How well does it work, does it use up all the computer's processing power?

I tried some program once, and the computer was practically unusable, even moving the mouse was too much for it.

I don´t need sound but it would be nice to make some videos about Infinite Icons.

@DigitalDesigns
Lgp2 didnt use any cpu power: it is external hardware you connect between your amiga and monitor, hooking up on hdmi:
https://www.avermedia.com/product-detail/GC513

@kas1e

Hehe, awesome. Thank you so much for the new Farbrausch demo—I'm going to check it out tonight with a beer. Great work—I love these demos, and I've always had to watch them on my PC or Mac. Cheers.....

@kas1e

Good little demo.
Wasn't too bad even on a Sam460 for most of it.

Cheers