Adjust the color of the screen of your Nintendo Switch.
Download the latest zip from the release page, unzip it to the root of your sd card (be careful to merge and not overwrite folders), and reboot.
Only the latest version of the Atmosphère CFW is supported.
If you want to use the overlay, you will need to set up Tesla (install Tesla-Menu and ovlloader). This isn't supported on firmware versions prior to 9.0.0.
Firmware versions 9.0.0 and later are supported. If you encounter an issue running this software on a particular version, please create an issue.
You can refer to the built-in help. Navigate with either the touchscreen or the D-pad buttons.
Settings are saved at /switch/Fizeau/config.ini
and /config/Fizeau/config.ini
(in order of priority), which you can also edit.
switch-glm
installed. You also need rsync
to be available (it should be by default on all major operating systems).git clone --recursive https://github.com/averne/Fizeau
)cd Fizeau
).make dist
.out/
.This software uses the CMU (Color Management Unit) built into the Tegra GPU of the Nintendo Switch. The purpose of this unit is to enable gamma correction/color gamut changes.
The CMU works in 3 passes:
Overview of the CMU pipeline:
More detail can be found in the TRM (Tegra Reference Manual), section 24.3.14 (Display Color Management Unit).
Official software use the CMU for multiple purposes (the following images were generated using a script found here, with data dumped from running official software):
In addition, the color range of the external display is restricted using the HDMI AVI (Auxiliary Video Information) infoframe.
Official software uses precalculated default gamma ramps, and apply modifications to those (the relevant function can be found at .text + 0x05c70 in 6.0.0 nvnflinger). However here gamma ramps are generated at runtime, which is both more elegant and easily enables non-default gamma. The generated LUT1 is byte-for-byte identical to the official one.