![]() Let me know what you think or if you need any help. Scanline with aperture grille 50% opacity Ive tried going thru the parameters but nothing works. Scanline with aperture grille 75% opacity Whenever I try to play using the mGBA core on PC and use a shader that comes with a border, it stretches the game to not fit in the border. Scanline with aperture grille 100% opacity You can do this in firefox by right clicking the image and selecting ‘VIEW IMAGE’Ĭloseup image showing the 2 overlays in use at 2x the size and at various opacity levels: Set Aspect Ratio to 16:9 (or whatever your display is, use custom settings if you need to, you want it to fill your entire screen) With a game running, go to Quick Menu -> Shaders -> Load Shader Preset. Be sure to view these at full resolution otherwise they won’t look correct. ‘OVERLAY OPACITY’ and adjust the opacity by pushing left or right.īelow are some example screen captures. You can change the opacity of the overlay to your own preference by going to: ‘ scanline-grille-1080p-224.cfg‘ is scanlines with an aperture grille effect as well ‘ scanline-1080p-224.cfg‘ is just scanlines Once in Retroarch go to the menu and under settings goto:Īnd from here select one of the overlay configs that you copied over. Then: ‘USE VIDEO OUTPUT RESOLUTION’ (assuming that you have your rpi set to 1080p). ![]() You can set this by pressing ‘x’ after selecting a game. To use the overlays unzip the archive which I will link to below and copy the directory to the following location: /opt/retropie/emulators/retroarch/overlays/effects/scanlinesĮnsure that retroarch is rendering the display at 1080p. This includes CPS1, CPS2, Neogeo, Genesis/Megadrive, Snes and many others. To start with I’ve created two overlays suitable for use with systems that have a vertical resolution of 224. The downside of this approach is you can’t have a “one-size fits all overlay” as there are several different resolutions that systems use and so you need a different overlay depending on the vertical resolution of the game being played. My overlays are pre-scaled so that they match perfectly with the scaled game image. Most other scanline overlays are designed to be used with integer scaling switched on but the downside of this is you either have a black border or lose some of the image. I wanted to use scanlines but also wanted to display games using the full height of my TV so have created some retroarch overlays to achieve this.
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