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Found 1 result

  1. To achieve a match of NTSC_A7800_CRT.pal under MESS 0.148 (Currently downloadable from here), make the following adjustments from default, ensuring hlsl is enabled: red_ratio 1.000000,0.300000,-0.300000 grn_ratio -0.150000,1.000000,0.150000 blu_ratio 0.150000,-0.150000,1.000000 saturation 1.500000 YIQ is disabled (As it is broken under 0.148) regarding the above values. Only title badly affected by this is Tower Toppler. If using another version of MESS with YIQ enabled, the above numbers need to be tweaked accordingly. If you fall into this category though, you're likely making adjustments to your display preference anyway including palette colors. MESS 0.148 has accurately stored the RAW video output of an NTSC Atari 7800 and you adjust video to personal preferences and experience as seen fit via slew of the video tweaks available. HLSL effects with all the bells and whistles turned on can require a relatively respectable graphics card. For just changing the above with no additional effects, a less powerful one is required. Most cards from the last 5 (Even as far back as ~7) years of a mid-level or better performance should suffice. See here for more details. To simplify things further for MESS here are all the files (BIOS, artwork, etc.) and basic settings you need for the palette NTSC_A7800_CRT working with hlsl. You want to unzip this archive in the same folder as your MESS executable: MESSA7800BASIC.zip Here is the same set of files with screen curvature, overscan, and scanlines: MESSA7800BELLS.zip Hope this is helpful.
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