Search found 56 matches

by Augustus Blackheart
Tue Sep 30, 2014 10:43 pm
Forum: SNESdev
Topic: SPC2 Player?
Replies: 7
Views: 3297

Re: SPC2 Player?

Pretty sure Augustus Blackheart's entry uses pitch modulation. Those messy, distorted chiptones sure sound like it to me - but in any case he actually lists four samples as "for pitch mod" in his post above, so whatever the actual effect is, it's in there somewhere. Yes, before the drums ...
by Augustus Blackheart
Tue Sep 30, 2014 12:28 pm
Forum: SNESdev
Topic: SPC2 Player?
Replies: 7
Views: 3297

Re: SPC2 Player?

How long are those PCM samples? They sound like they use de-tuning, but de-tuning requires samples that are over 1000 samples long. Here's the info for Längholmen length / sample name [04206] bassdrum (satisfact) [03104] snaredrum (silkworm) [02704] ride (augustus blackheart) [00940] drum traks [00...
by Augustus Blackheart
Tue Aug 26, 2014 10:07 am
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

This demo shows that the black flecks (blue flecks in this demo) are where mode 2 is bleeding through the sprite layer. Not really mode 2 or mode 7 bleeding through exactly, but at the point where mode 2 and 7 intersect those flecks show up and they are whatever the background color is. I'm not see...
by Augustus Blackheart
Sun Aug 24, 2014 3:17 pm
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

Here's a modified version of Pan's horizontal split demo. Press left or right to decrease where the horizontal split happens. Press up or down to move the sprites left or right. Press select to toggle the sprite layer. Press A to toggle vertical plasma and b to toggle horizontal plasma. Press Y or X...
by Augustus Blackheart
Sun Aug 24, 2014 10:06 am
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

I don't know why you disabled sprites (or how you did that on the hardware; or maybe you just modified the demo source?), but your subsequent line states clearly that with sprites enabled the black dots (like in my video) are visible for you too, which means this is not an issue specific to my SNES...
by Augustus Blackheart
Sun Aug 24, 2014 12:32 am
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

Augustus, is it possible to get a recording of you running MODE7.SMC on your setup? This is a new video of the original anthrox demo with sprites disabled. It is hard to tell with the mess going on in the middle but the black specks do not appear to be visable when the sprite layer is disabled. I d...
by Augustus Blackheart
Sun Aug 17, 2014 1:13 am
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

93143 wrote:...call me paranoid, but can you confirm that you're using an original SNES, and not a SNES Jr.?
Original SNES; I haven't opened this one up. Not sure if this is helpful:

S/N: UN279446165
CPU: 2
PPU1:1
PPU2:3

That serial number is between two listed at SNES SN which indicate SNS-CPU-RGB-01
by Augustus Blackheart
Mon Jul 28, 2014 6:08 pm
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

Oh, those are indeed 1's. Didn't notice. Okay, your initial response makes sense now. But I was actually referring to the Anthrox demo, atx2. I was wondering how that is supposed to look on hardware. The text isn't really readable with higan. I can't imagine they'd release it if the text were unrea...
by Augustus Blackheart
Sun Jul 27, 2014 12:43 pm
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

Anyway ... is anyone willing to record a video of this being run on real hardware? I don't want to dig out my copier gear, and I don't understand AB's explanation of "left 9 1's", but I'd like to see how close I am. Here's a picture, the yellow stripe is the part of the screen that is mes...
by Augustus Blackheart
Sat Jul 26, 2014 10:03 am
Forum: SNESdev
Topic: BGMODE or parameter changes during scanline
Replies: 123
Views: 36247

Re: BGMODE or parameter changes during scanline

Hopefully this is just an artifact of how the dot-based renderer was coded, and a real SNES will do a better job. On real hardware from right to left 9 1's are perfectly still. The next three 1's are chaos, similar to Pan's horiz demo (sprites are used to cover the mess in the center.) Higan was th...