Editing Shaders and filters
Jump to navigation
Jump to search
Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
| Latest revision | Your text | ||
| Line 1: | Line 1: | ||
Shaders and filters can be applied to video games to enhance visuals or achieve some kind of visual effect. These can be from attempting to replicate [[Display FAQ|aperture grille]] displays, NTSC signals, or something more exotic. | Shaders and filters can be applied to video games to enhance visuals or achieve some kind of visual effect. These can be from attempting to replicate [[Display FAQ|aperture grille]] displays, NTSC signals, or something more exotic. | ||
| + | Visit the [[List_of_shaders_and_filters |List of shaders and filters]] page for more examples. | ||
==Emulator support== | ==Emulator support== | ||
| Line 72: | Line 73: | ||
;Before diving in; | ;Before diving in; | ||
| − | ;*Some of the shaders and filters listed below are already included in the chain for some of the [[Shader Presets]] or present as an enhancement/adjustment option | + | ;*Some of the shaders and filters listed below are already included in the chain for some of the [[Shader Presets]] or present as an enhancement/adjustment option from [https://www.pcgamingwiki.com/wiki/Category:Graphics_Adaptor GPU driver control panel] or from your digital [[displays|display]] OSD. Some of those things may cause color clipping, exposure issues (due to using excessive digital adjustments to image) and [[Input lag]]. It's recommended to avoid usage of color or excessive image options/filters. But you can use [[Displays|analog device/CRT]]'s OSD adjustments. Another proper option for this using the RTX Dynamic Vibrance option (see [[#AI-powered filters]]) to avoid color crashing which comes with the new Nvidia App[https://www.nvidia.com/en-us/software/nvidia-app/] and top of that using a HDR device with [[High_dynamic_range#Inverse_tone_mapping|Inverse tone mapping]]. |
==Types== | ==Types== | ||
| + | {{Main|List of shaders and filters}} | ||
[[File:Crt-geom.png|thumb|190px|crt-geom-flat.cg, a popular CRT shader.]] | [[File:Crt-geom.png|thumb|190px|crt-geom-flat.cg, a popular CRT shader.]] | ||
===CRT Shaders=== | ===CRT Shaders=== | ||
| Line 86: | Line 88: | ||
These software filters replicate the signals that consoles output to the TV. They vary in quality, with the lowest quality being RF, then composite, then S-Video, and then RGB (SCART) being the highest quality. Many emulators have blargg's NTSC filter libraries<ref name="blargg">http://slack.net/~ant/libs/ntsc.html</ref> built into them. They can also be separately downloaded in filter plugin format. | These software filters replicate the signals that consoles output to the TV. They vary in quality, with the lowest quality being RF, then composite, then S-Video, and then RGB (SCART) being the highest quality. Many emulators have blargg's NTSC filter libraries<ref name="blargg">http://slack.net/~ant/libs/ntsc.html</ref> built into them. They can also be separately downloaded in filter plugin format. | ||
| + | ===LCD Shaders=== | ||
| + | [[File:Lcd-grid.png|thumb|256px|cgwg's lcd-grid-v2 shader with GBA colors.]] | ||
| + | These replicate the look of a low-resolution LCD common on handhelds. These can range from a simple grid drawn around the pixels to a detailed recreation of each pixel's RGB subpixels. May also include motion blurring to simulate ghosting and washed out color gamuts. | ||
| − | === | + | ===Game Boy Shader=== |
| − | + | [[File:Gb.png|thumb|189px|GameBoy Shader with default palette. Other palettes are available.]] | |
| − | + | This .cgp shader replicates the dot matrix screen of a Game Boy, complete with the ghosting problems to reproduce certain visual effects. Made by Harlequin. Requires [[RetroArch]]. | |
| − | |||
| − | |||
===Smoothing shaders=== | ===Smoothing shaders=== | ||
These shaders, such as 2xSai, Super Eagle, Super 2xSai, scaleX, HQx, xBR and xBRZ attempt to reduce the pixelation by smoothing and rounding. They can cause a lot of false positives and distortions, however, scaling the image 2x or 3x using nearest neighbor, then applying the smoothing shader will reduce the intensity of the smoothing by keeping the pixel shapes intact, eliminating most distortions while keeping a fairly smooth look. | These shaders, such as 2xSai, Super Eagle, Super 2xSai, scaleX, HQx, xBR and xBRZ attempt to reduce the pixelation by smoothing and rounding. They can cause a lot of false positives and distortions, however, scaling the image 2x or 3x using nearest neighbor, then applying the smoothing shader will reduce the intensity of the smoothing by keeping the pixel shapes intact, eliminating most distortions while keeping a fairly smooth look. | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
===Dithering=== | ===Dithering=== | ||
{{Main|Dithering#Shaders}} | {{Main|Dithering#Shaders}} | ||
| − | + | These are shaders designed to detect and smooth [[dithering]]. [https://github.com/libretro/common-shaders/tree/master/dithering mdapt] is a popular one. There is also a newer gdapt. | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
===Pixellate=== | ===Pixellate=== | ||
| − | + | ||
This shader is supposed to appear the same as the nearest neighbor (aka "unfiltered"), except with minor corrections when using a non-integer scale that is increasingly less noticeable the higher it is scaled. This shader is useful to anyone who wants to keep things as sharp as possible without worrying about scale factors. Available in [https://github.com/hizzlekizzle/quark-shaders/tree/master/Pixellate.shader Quark] and [https://github.com/libretro/common-shaders/blob/master/retro/shaders/pixellate.cg Cg] shader formats. A newer alternative that does the same thing (but may give sharper results) is the sharp-bilinear shader, which prescales the image to a high resolution, then downscales using bilinear scaling. | This shader is supposed to appear the same as the nearest neighbor (aka "unfiltered"), except with minor corrections when using a non-integer scale that is increasingly less noticeable the higher it is scaled. This shader is useful to anyone who wants to keep things as sharp as possible without worrying about scale factors. Available in [https://github.com/hizzlekizzle/quark-shaders/tree/master/Pixellate.shader Quark] and [https://github.com/libretro/common-shaders/blob/master/retro/shaders/pixellate.cg Cg] shader formats. A newer alternative that does the same thing (but may give sharper results) is the sharp-bilinear shader, which prescales the image to a high resolution, then downscales using bilinear scaling. | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
===Border=== | ===Border=== | ||
| Line 179: | Line 135: | ||
:[https://www.nvidia.com/en-us/geforce/news/gfecnt/nvidia-freestyle-ansel-enhancements-geforce-experience-article/ Nvidia FreeStyle] | :[https://www.nvidia.com/en-us/geforce/news/gfecnt/nvidia-freestyle-ansel-enhancements-geforce-experience-article/ Nvidia FreeStyle] | ||
:[https://nvidia.custhelp.com/app/answers/detail/a_id/5521/~/nvidia-app-beta-faq What are the requirements to enable RTX Dynamic Vibrance?] | :[https://nvidia.custhelp.com/app/answers/detail/a_id/5521/~/nvidia-app-beta-faq What are the requirements to enable RTX Dynamic Vibrance?] | ||
| − | AI-powered filters are a new technology with the potential to further improve the emulation experience. These filters use machine learning to automatically enhance the visuals of content. Nvidia recently release their new Nvidia App | + | AI-powered filters are a new technology with the potential to further improve the emulation experience. These filters use machine learning to automatically enhance the visuals of content. Nvidia recently release their new Nvidia App which comes with new AI-powered filters called "Nvidia FreeStyle", one of them is RTX Dynamic Vibrance option which is an AI-powered dynamic image enhancement without crashing colors. AI-powered filters offer exciting possibilities for the future of emulation. As the technology matures, expect even more advanced features and use cases to emerge, further improving the way we experience various content such as classic video games. |
==Notable ReShade shaders== | ==Notable ReShade shaders== | ||
| − | These are not [[Shader_Presets|shader presets]]. But you can create your own custom preset using these .fx shaders. As some of the effects (RTGI and Motion Estimation etc.) require depth access, make sure to have your [https:// | + | These are not [[Shader_Presets|shader presets]]. But you can create your own custom preset using these .fx shaders. As some of the effects (RTGI and Motion Estimation etc.) require depth access, make sure to have your [https://www.youtube.com/watch?v=zMceMD9OzIE depth buffer correctly configured] if you want to use them. |
;[https://www.martysmods.com/rtgi/ Pascal Gilcher's RTGI shader] ($) | ;[https://www.martysmods.com/rtgi/ Pascal Gilcher's RTGI shader] ($) | ||
