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+ | [[File:Retroarch_2013-07-22_17-21-17-60.png|thumb|298px|CRT-Geom-Flat, with default settings]] |
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| − | CRT Download links here. |
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| − | ==Overview== |
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These replicate aperture grille CRTs, which have sharp images and strong scanlines. If you find that this doesn't look a damn thing like your old TV, it's probably because you owned a shadow-mask style CRT, which has less noticeable scanlines (the easiest way to tell the difference is to feel the curve of the screen; aperture grilles only curve horizontally if at all). Unfortunately, shadow masks require resolutions of upwards of 3000x4000 to emulate accurately, so all we have for the time being are aperture grille shaders. |
These replicate aperture grille CRTs, which have sharp images and strong scanlines. If you find that this doesn't look a damn thing like your old TV, it's probably because you owned a shadow-mask style CRT, which has less noticeable scanlines (the easiest way to tell the difference is to feel the curve of the screen; aperture grilles only curve horizontally if at all). Unfortunately, shadow masks require resolutions of upwards of 3000x4000 to emulate accurately, so all we have for the time being are aperture grille shaders. |
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Use integer scaling. This means either using windowed mode (x2,x3,x4) or setting an integer scaling option in the video options. The reason is that non-integer scaled scanlines will result in uneven lines with artifacts. |
Use integer scaling. This means either using windowed mode (x2,x3,x4) or setting an integer scaling option in the video options. The reason is that non-integer scaled scanlines will result in uneven lines with artifacts. |
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| + | https://github.com/libretro/common-shaders/tree/master/crt |
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| + | ==Types== |
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| + | {{Main|CRT Geom}} |
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| + | Simulates an apperture grille. Very versatile and modable. One of the more popular CRT shaders. Visit the main article. |
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| − | ===Tweaking=== |
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| + | ===Crt-cgwg.cg=== |
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| − | Place here all the coding used to tweak CRT Geom. |
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| − | === |
+ | ===crt-caligari.cg=== |
| + | ===Shadowmask=== |
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| − | If you're using a CRT monitor, you can use [http://www.mediafire.com/download/6ygh7saafpn7gm0/CRT-Geom_for_CRT_monitors.7z these] variants of CRT-Geom at 1280x960 full screen for an authentic 240p look. These variants are based on the flat variant with phosphor code commented out and the gamma correction disabled. There are three main variants (Normal, Sharp, Sharper), and each have different scanline brightness presets and interlacing enabled/disabled. As above, use integer scaling and force 4:3 aspect ratio. Some games may have black borders due to the full overscan area being visible, use your monitor's zoom function to zoom in and hide overscan. Also works with handheld games if you use the non-interlaced variant and force a 4x scale in RGUI. |
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| + | Hypothetical shadowmask shaders are being developed. Due to the nature of the shadowmask screen, 4K resolution is likely needed. |
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| + | [[Category:FAQs]] |
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| + | [[Category:Shaders/Filters]] |
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Latest revision as of 00:37, 26 July 2013
CRT-Geom-Flat, with default settings
These replicate aperture grille CRTs, which have sharp images and strong scanlines. If you find that this doesn't look a damn thing like your old TV, it's probably because you owned a shadow-mask style CRT, which has less noticeable scanlines (the easiest way to tell the difference is to feel the curve of the screen; aperture grilles only curve horizontally if at all). Unfortunately, shadow masks require resolutions of upwards of 3000x4000 to emulate accurately, so all we have for the time being are aperture grille shaders.
Use integer scaling. This means either using windowed mode (x2,x3,x4) or setting an integer scaling option in the video options. The reason is that non-integer scaled scanlines will result in uneven lines with artifacts.
Download
https://github.com/libretro/common-shaders/tree/master/crt
Types
CRT Geom
- Main article: CRT Geom
Simulates an apperture grille. Very versatile and modable. One of the more popular CRT shaders. Visit the main article.
Crt-cgwg.cg
crt-caligari.cg
Shadowmask
Hypothetical shadowmask shaders are being developed. Due to the nature of the shadowmask screen, 4K resolution is likely needed.