Update README.md

ledoge · Mar 13, 2022 · 6d17fc9 · 6d17fc9
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@@ -15,4 +15,9 @@ ICC profiles are also supported and can be used in two different ways. By defaul
 * For the gamma options to work properly, the profile must report the display's black point accurately. DisplayCAL's default settings, e.g. with the sRGB preset, work fine.
 * Since the color space conversion is done on the GPU side, the ICC profile must not be selected/loaded in Windows or any other application. If you want, you can do another profiling run on top of the active calibration and then use this profile in applications that support color management to achieve even better color accuracy.
 * To achieve optimal results, consider creating a custom testchart in DisplayCAL with a high number of neutral (grayscale) patches. With those, a grayscale calibration (setting "Tone curve" to anything other than "As measured") should be unnecessary and might even be detrimental to the accuracy. The number of colored patches should not matter much. Additionally, configuring DisplayCAL to generate a "Curves + matrix" profile with "Black point compensation" disabled may also result in better accuracy than with an XYZ LUT profile.
+* The option "Disable 8-bit color optimization" can be used to get better color accuracy in true 10-bit workflows at the cost of 8-bit accuracy. Only enable this if you really know you're working with 10-bit color.
 * Only the VCGT (if present), TRC and PCS matrix parts of an ICC profile are used. If present, the A2B1 data is used to calculate (hopefully) higher quality TRC and PCS matrix values.
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+# Dithering
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+Applying any kind of calibration on the GPU-level usually results in banding unless dithering is used. By default, NVIDIA GPUs do not apply dithering to their output. Therefore, it is recommended that you use the dither controls to enable and configure dithering. "Bits" should be set to match the bit depth of your GPU output, and "Mode" can be set to whatever looks best to you. Note that "Temporal" works by rapidly switching between colors, which some people's eyes are sensitive to.