nex4060 wrote:
@CU_AMiGA
Did it run in real chunky-mode? or did it do the bitplane conversion? Some grraphics cards have hardare support for this conversion and that becomes an bottleneck, it sounds like that it was this you experinced.
"ADoom puts up an ASL requester for the ScreenMode.
The -directcgx option causes scene rendering directly to the gfx-card (instead of using a chunky buffer in fastmem). This can provide a significant speed-up with a fast gfx-card."
I found Doom to be perfectly playable on my '040 25Mhz system, and you're absolutely right - the bottleneck in speed is due to the Amiga's native chipset having to covert chunky to planar graphics on the fly.
When I first fitted a Mediator, together with a ViRGE card and CGX 3, I tried the -directcgx option and was blown away by the speed increase. This was lost when Mediator went to P96 and even overclocking my CPU to 40Mhz couldn't restore the smoothness.
As pointed out, moving the WAD file to RAM would eliminate disk access issues (guess who forgot to run the "Addbuffers HD2: 350" command first time out!).
