Search found 268 matches

by nollkolltroll
Wed Mar 28, 2018 10:05 pm
Forum: Development
Topic: If you like your submarine simulations fast, arcadey,...
Replies: 46
Views: 7089

Re: If you like your submarine simulations fast, arcadey,...

I had the same problem with both my udg boards. On 3 different zx81s, but sorted as soon as I changed power supply. I guess the first psu was nosiy.
by nollkolltroll
Wed Mar 21, 2018 4:42 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

RWAP wrote:
Wed Mar 21, 2018 12:11 pm
We could do with a video of this on Youtube :)
Fixed. Have a look at the original post.
by nollkolltroll
Wed Mar 21, 2018 2:08 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

You really stroke my ego nicely, thank you all! I think I'll have to speed up the release process of the source... Along with some notes on how to make the videos. Not a small undertaking. At least I have laid the ZX80 version of the player to rest, not possible to make with my understanding of port...
by nollkolltroll
Wed Mar 21, 2018 12:08 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

mrtinb: I'll start with encoding Big Buck Bunny, and share that. Then I'll have to clean up the code, in a major way. It works but is embarrassingly slow and ugly. 3 minutes of video takes around 8 hours on my i7 computer, though it utilises only one thread. So in short: I will share the code for bo...
by nollkolltroll
Wed Mar 21, 2018 9:01 am
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

The updated post has new players that work on both ZXpand and ZXpand+.
by nollkolltroll
Sun Mar 18, 2018 9:43 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

Well, the top post has the same text as the docs...
No worries, I think it IS interesting to know the differences between zxpand and zxpand+ regardless.
Hope to have some time to test 30fps mode on the zxpand tomorrow.
by nollkolltroll
Sun Mar 18, 2018 9:30 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

The original zxpand does not support 512-byte requests/transfers, only 256-byte is ok. The new mode has less overhead, which is why I started coding for the zxpand+. I made a quick test this afternoon, and managed to get a version working on the original zxpand. So far only tested in 25fps mode. Wil...
by nollkolltroll
Sun Mar 18, 2018 12:11 pm
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

And for those without the proper HW, it is possible to run this in EightyOne v1.8 or later with the appropriate settings.
by nollkolltroll
Sun Mar 18, 2018 11:29 am
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Re: Bad Apple UDG

Yes, Big Buck Bunny is coming up. Error diffusion video does not look good, bayer dither looks very good.

Feels nice to surprise you Andy :)
by nollkolltroll
Sun Mar 18, 2018 9:41 am
Forum: Development
Topic: Bad Apple UDG
Replies: 23
Views: 3193

Bad Apple UDG

Bad Apple ZX81 v1.1 Intro The famous Bad Apple video is played full screen at 15, 25 or 30fps. Requirements This player requires a ZX81 with UDG4ZXpand and a ZXpand+ or ZXpand. Usage real HW For the classic ZXpand: use zxp25.p to play the video in 50Hz PAL mode, giving 25fps. TV standard jumper is ...