>> Starting from the code from 2024-June-13, Koko-aio needs at least Retroarch 1.16 to work <<
Version NG-1.9.50 is up on github and should be available via online updater in Retroarch.
Hi guys, first post here. In the past I made a shader for FS-UAE (Amiga emulation), but since i found that retroarch has a pretty good support for whdload games, I ported it to slangp so that it can be used with other emulators too.
I’m not that expert with technical terms, but i’m fortunate enough to own an old 15khz slot mask crt monitor inside an arcade cab loaded with Advance mame and other old emulators, so I used it as a reference. Why using a shader, you may ask, instead of the almost “real thing™”?
Actually that thing is big, heavy and power hungry and since it is running on an old AthlonXP i expect it to break sooner or later and i’ll not have spare time to fix, that’s for sure. Also, i’ve finally got an awesome oled 4k tv and i think that with that amazing (low) pixel persistance and resolution, we can get pretty damn close to the “real thing™”
One of the main goal of this shader is to be usable on integrated GPUs.
Granted, don’t expect it to run on a Raspberry pi, but the actual target is
Intel Haswell, the one on which I develop it, where it perform with all the features
enabled, when dealing with 240p content, on 1080p at resolution ad about 85/90fps.
Click to read features
- Scanlines
- Screenlines
- RGB phosphors
- RGB deconvergence
- NTSC/PAL CVBS color bleeding
- Aperture grille, slot mask, shadomask.
- Input signal glowing
- Output signal glowing
- Blooming
- Gamma, contrast, saturation, luminance, color temperature adjustments
- Black frame insertions through alternate blanking
- Interlace flickering, forcing and emulation
- Antialiasing
- Curvature
- Ambient lights
- Vignette and Spotlight
- Bezel (Thank you HyperspaceMadness for allowing me to rip his automagically generated bezel!) https://github.com/HyperspaceMadness/
- Background images
- Full screen glowing
- 3D rotation/tilt
- Integer scaling
- Background image Night mode
- Support for backdrop images for BW game/CABs that use mirrors
- NTSC emulation with selective artifacts smoothing
- Temporal bloom
- RF Noise
- Dot matrix display emulation with grid, shadow and motion blur (gameboy mono)
- Monochrome display “colorization”
- TATE mode
Click to read relevant changes over previous releases
Relevant changes in release NG-1.9.50
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NEW: Add Horizontal “Mask helper” function to Halo section to exploit full mask brightness
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NEW: Add “RGXB” mask Presets
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NEW: Add an option to show simple test patterns
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NEW: Convergence: allow to offset it more and blurring more near borders
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NEW: Allow the choice betweeb FXAA and ddt-xbr-lv1
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NEW: Add dot crawl emulation
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NEW: Allow to zoom/shift fg/bg image when Rotate/flip is set to auto
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NEW: RF noise: add a more sparkling “Snow noise” option, old one renamed to “Uniform noise”
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NEW: RF noise: allow to move it before or after “blur/glow” stage.
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CHANGE: Presets tuning
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CHANGE: Slightly improved Halo blur quality
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CHANGE: Global zoom is auto disabled when integer scaling is enabled
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CHANGE: Better looking spot function
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CHANGE: Removed bezel “Inner Zoom” parameter, “Frame Zoom” parameter renamed as “Frame Alignment”
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FIX: Do not consider flipped titles as “rotated”
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FIX: Fixed common “blurs” aspect ratio
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FIX: Fix override content aspect options when neither ambient light nor bg/fg images are used
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FIX: Spot: corrected spot placament for 90 and 270 rotated titles
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FIX: Correct reflection area shade placements for 270 deg. rotated titles
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PERF: Refactored shader passes to gain speed, previously saved full presets need to be remade, sorry.
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PERF: Big speedup to FXAA code by just removing unused search loop.
Performance went up by almost 4% on my haswell with my standard tests.
Useful links
- Make sure to read the docs!
- Main development done on this Github repo
- Stable releases should be available through Retroarch’s online updater
(shaders_slang/bezel/koko-aio/) or here. - Click here if you want to try the latest in-develompent shader and unpack the zip somewhere inside your -already in place- shader directory.
I do not ensure you it will work as expected nor that your cat will be safe. - Texture “source” projects for main monitor frame/bezel and other misc files has been moved to another repo to lower the download size.
- More presets and additional artworks: koko repo || estefan3112 repo || Starman99x repo || Duimon repo
- If you want to boost your fps and you don’t mind tinkering with text files, take a look to the file config-user.txt in the shader folder and follow the instructions; on intel IGPs, I’ve seen fps boosted by 45%.
Please, tell me what you think, any comment is really appreciated.
Dynamic room lights (immersive preset)
Hires content
Overmasked
Antialiased
Mask experiments
Handhelds
Ntsc selective blurring and sharpening
monitor-Commodore_1084S-Night
monitor-slotmask-bloom-bezelwider - Arcade - Final fight
monitor-Commodore_1084S-wider - Amiga - ProjectX SE
tv-PAL-my-old - Master System - Trans Bot
tv-NTSC-1 - Genesis - Sonic 2
tv-NTSC-2 - Snes - Aladdin
tv-aperturegrille-bloom-bezel - Amiga - Leander
gameboy_mono_colorized.slangp - Gameboy mono - Super Mario Land