Most digital images intended for viewing are generally assumed to be in sRGB colour space, which is gamma-encoded. This means that a linear increase of value in colour space does not correspond to a linear increase in actual physical light intensity, instead following more of a curve. If we want to mathematically operate on colour values in a physically accurate way, we must first convert them to linear space by applying gamma decompression. After processing, gamma compression should be reapplied before display. The following C code demonstrates how to do so following the sRGB standard:
I have been using SDL3 as it does everything I need as a cross-platform abstraction over the system - from windowing, to game controllers, to rendering. It works on Linux, Windows, Mac, Switch, PS4/5, Xbox, etc, and as of SDL3 there is a GPU abstraction that handles rendering across DirectX, Vulkan, and Metal. It just works, is open source, and is used by a lot of the industry (ex. Valve). I started using it because FNA, which Celeste uses to run on non-Windows platforms, uses it as its platform abstraction.。业内人士推荐快连下载安装作为进阶阅读
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Source: Computational Materials Science, Volume 267
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