Version 7 is available and also is in the RetroArch distribution.
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A couple notes:
The presets are designed for native resolution. Some cores allow you to render the internal framebuffers at a higher resolution. These options should be disabled before applying a preset. The HDTV presets can accept an input size of up to 1125 pixels high, but I donât test anything outside of native resolution and there may be issues with scaling due to H-sync timing derivation.
Some cores use hardware acceleration for rendering and this will require timesharing with the shader rendering. If you are running this type of core and encounter slowdowns, you can determine if the shader is the cause by disabling the video shader and seeing if full speed can be achieved. With recentish hardware a hardware accelerated core should not be needed as long as you are running native res until you get to the N64 or so (i.e. you can use the software Beetle PSX renderder).
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The next version will have HDR support. The other SDR modes will also have better tone-mapping. Default settings will result in a much brighter image.
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If you donât want to wait for the Version 8 version to become available in the RetroArch downloader, you can get the packages here:
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As an aside to the HDR stuff, i have also noticed that my 2080âs fans go nuts and i drop frames down to about 80 fps when using your shader, unless i enable the shaderâs âBypass Glowâ Debug setting, at which point it chills and i get the full 120 fps.
Not sure if that glow effect is just that heavy, if itâs surfacing some normally hidden issue with my specific GPU, or what, but i thought you might want to be aware.
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Yeah thatâs largely because mipmapping is broken on D3D12 so I canât use it. Itâs a heavy function applied to the entire output resolution.
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This is a good time to discuss the MASK_DIFFUSION parameter.
MASK_DIFFUSION
The diffusion of the mask dots is an important part of maintaining SDR viewing brightness and eliminating moiré patterns without needing to rely on subpixel effects. The baseline view is for an SDR, 4K monitor which is probably the most common display type in use today. The diffusion parameter is most accurate in the range under 1.0 down to 0.5, depending on the ratio of phosphor dot to full mask.
The lower bound of usable diffusion is limited by two artifacts: aliasing (moiré) and gain. Aliasing is reduced with higher resolution, and gain can be increased with a higher dynamic range.
The average gain of both beam scanning and masking is calculated and used as makeup gain. In SDR mode, tone-mapping is used to bring levels down to acceptable SDR range. Even in SDR, tone-mapping can acceptably maintain brightness down to a diffusion value of at least 1.0.
The more relevant bottleneck to lowering diffusion right now is resolution. The default diffusion value of 2.0 was selected because it eliminates moiré at TVLs from 300 to 800 for 4K. The diffusion value can be lowered, but moirés can start to become apparent. These patterns are most apparent in a full white field.
Now that I have a better understanding, HDR will be fixed in the next update. There will be additional HDR enhancements in the upcoming weeks as I get more time to test it.
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Version 9 will be available in RetroArch shortly, and you can get it here:
In addition to the HDR fixes, the glow effect is much better optimized and my laptop with Intel Iris Xe integrated graphics can run the RF presets at full speed at 1080p. If you use the Vulkan driver, you can enable mipmapping in the parameter menu which can further improve performance.
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