PWM on 18-bit DAC to get 24-bit Color

Discussion of developmental aspects of the MiSTer Project.
amano
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Re: PWM on 18-bit DAC to get 24-bit Color

Unread post by amano »

Thank you, Ruleset!!!

naylord
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Re: PWM on 18-bit DAC to get 24-bit Color

Unread post by naylord »

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.

Ruleset
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Re: PWM on 18-bit DAC to get 24-bit Color

Unread post by Ruleset »

naylord wrote: Tue Feb 04, 2025 1:04 am

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.

Here is the last build I did with a "Scandoubler Fx" option, I think scandoubling doesn't work with interlaced video. Don't know why it was removed if it still has a use for some people. Maybe FPGA resource optimization.

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FPGA64
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Re: PWM on 18-bit DAC to get 24-bit Color

Unread post by FPGA64 »

Ruleset wrote: Tue Feb 04, 2025 12:12 pm
naylord wrote: Tue Feb 04, 2025 1:04 am

Thanks so much again! Any chance of downloading older saturn builds of this? I just ran the update to get the newest Saturn (added the ini line to make this automatic for pwm cores) but noticed that now they seem to have removed forced_scandoubler from the saturn core. I think I might want to revert to an older build just so I can have that feature again.

Here is the last build I did with a "Scandoubler Fx" option, I think scandoubling doesn't work with interlaced video. Don't know why it was removed if it still has a use for some people. Maybe FPGA resource optimization.

Saturn core is 99 % full. better to drop things like scandoubler than have bugs

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mapf
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Re: PWM on 18-bit DAC to get 24-bit Color

Unread post by mapf »

Indeed it does not work with interlaced modes. Saturn and PSX have a lot of titles that switch between interlaced and non-interlaced. So one should always use the scaler instead to make sure that all content is visible.

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