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There's a method to display an arbitrary bitmap on MD in full 9bit RGB color by disabling rendering and doing a large DMA to first color of the palette, but since there's one access slot every 2 pixels you get double wide pixels and also 4x wide ones 5 times per line due to refresh slots using up o...

I'm not entirely sure what you're even proposing, but the way the PPU multiplier works is quite limited, and I'm pretty sure it can't do anything like what you're thinking of. The PPU multiplier has exactly two modes of use: 1) the S-PPU uses it to figure out what to draw to the TV when in BG Mode ...

S-PPU can't write to VRAM and isn't programmable. You'd need to do something clever with the graphics format so that the process of displaying it could be considered decompression. I was referring to use the cpu to put in the vram that compressed data and using the multipliers to copy again the new...

This method is basically relying on ability to change most of the palette each line, by turning off rendering during offscreen parts in a way that results in just enough disruption to be able to show what is necessary. All sprites are lost, one BG layer won't work and most of the other BG layer is ...

I have a doubt about that multipliers... It could be possible to send a compressed packet of tiles to vram and use the PPU1 to decompress it?.

It could be a good solution to (virtually) increase the bandwidth.

Nikku4211 wrote: ↑Thu Jul 16, 2020 10:34 amSo yeah, I might be looking forward to seeing a SNES version of Freedoom sometime in 2021 or something.

Sorry, What means that?. The most urgent things that needs the game is to improve the perfomance, and increase the resolution.

Maybe now can be displayed at 256x190 or so. An overclocked super fx (from the sd2snes) could run it. Even could run in chuncks of 8 megs until 64 megs of total rom under super fx memory directioning using the mapper function of the msu1 (i think). But the first task here is the recognized lack of o...

Recently has been unleashed an "MSU type" card for megadrive, and some videos running on it. The author says that "mega color" has better display options, Do it this true?. "The tricks are a bit similar: intensive usage of DMA and similar sync. The rest is different. "D...

How many cycles has the SPC700 per frame?.

The difference was almost an superfx as ppu3.

10$, only 10$.

Normally, when the limit is exceeded, every scanline avoid to paint those pixels that are out of the limit, so, when there is a big group of sprites, yo can see an effect of torn cause every scanline affected has an determined longitude, different to the rest. But in this case the image shows perfec...

Kannagi wrote:I also coded my own transfets so we have 24 kb/s.

Well done.

Could it reach more than 24KB/s for more quality samples?.

psycopathicteen wrote:I'm talking about $211b and $211c.

I have here noted that the registers for the PPU are $4202 and $4203, and the registers of the mode 7 are $211b, $211c, $211d, and $211e

So, Do i must understand that you are in mode 7, but you can use that multipliers for sprites?

By the way, Do you mean using multiplications out of the mode 7?.

I'm lost, What is it for?. I'm trying to make a 3D spinning ring of ball sprites and it's taking a lot of CPU power to do the math on 16 balls, because it's taking 8 multiplications and 2 divisions per sprite. I'm trying not to use the mode-7 multiplication registers because I might want to later d...