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Author Topic: PTDS (formerly PED81C) - pseudo-native, no C2P chunky screens for AGA  (Read 74600 times)

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Offline saimoTopic starter

Re: PTDS (formerly PED81C) - pseudo-native, no C2P chunky screens for AGA
« Reply #14 from previous page: September 18, 2025, 12:24:45 PM »
Everyone can now try the last demo on their Amigas: it's available for download at https://retream.itch.io/ptds.

P.S. If you try it on a CRT, post pictures and let everybody enjoy the view, please!
RETREAM - retro dreams for Amiga, Commodore 64 and PC
 

Offline saimoTopic starter

Re: PTDS (formerly PED81C) - pseudo-native, no C2P chunky screens for AGA
« Reply #15 on: February 09, 2026, 11:26:16 AM »
I made this PTDS proof-of-concept program many months ago, but I couldn't bother releasing it until today.
It produces an effect of movement over a variable terrain. The terrain is rendered by means of perspective-correct texture mapping, according to a looping sequence of textures (Texequencer = Textures + Sequencer), on a triple-buffered 319x200 PDTS screen, using the RGBW color model.
Apologies for the dull textures :p

https://www.youtube.com/watch?v=jjlDSB958bQ

NOTES
* On a stock Amiga 1200, the speed alternates between 26 and 27 fps.
* On an Amiga 1200 equipped with a Blizzard 1230 IV mounting a 50 MHz 68030 and 60 ns FAST RAM, the speed alternates between 89 and 90 fps.
* YouTube's encoding degraded the quality.

Download: https://retream.itch.io/ptds
RETREAM - retro dreams for Amiga, Commodore 64 and PC