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Lutro is a retro-inspired 2D game engine for libretro, based on the love2d API.

This system scrapes metadata for the “lutro” group and loads the lutro set from the currently selected theme, if available.

Grouped with the “ports” group of systems.

No Lutro emulator in Batocera needs a BIOS file to run.

RetroArch (formerly SSNES), is a ubiquitous frontend that can run multiple “cores”, which are essentially the emulators themselves. The most common cores use the libretro API, so that's why cores run in RetroArch in Batocera are referred to as “libretro: (core name)”. RetroArch aims to unify the feature set of all libretro cores and offer a universal, familiar interface independent of platform.

RetroArch configuration

RetroArch offers a Quick Menu accessed by pressing [HOTKEY] + South button (B SNES) which can be used to alter various things like RetroArch and core options, and controller mapping. Most RetroArch related settings can be altered from Batocera's EmulationStation.

Standardized features available to all libretro cores: lutro.videomode, lutro.ratio, lutro.smooth, lutro.shaders, lutro.pixel_perfect, lutro.decoration, lutro.game_translation

ES setting name batocera.conf_key Description ⇒ ES option key_value
Settings that apply to all cores of this emulator
GRAPHICS API lutro.gfxbackend Choose which graphics API library to use. Vulkan is better, when supported.
⇒ OpenGL opengl, Vulkan vulkan.
AUDIO LATENCY lutro.audio_latency In milliseconds. Can reduce crackling/cutting out.
⇒ 256 256, 192 192, 128 128, 64 64, 32 32, 16 16, 8 8.
THREADED VIDEO lutro.video_threaded Improves performance at the cost of latency and more video stuttering.
⇒ On true, Off false.

libretro: Lutro

libretro: Lutro configuration

Here are the default Lutro's controls shown on a Batocera RetroPad:

For further troubleshooting, refer to the generic support pages.

  • systems/lutro.txt
  • Last modified: 16 months ago
  • by atari