This leads to a general bump in overall rendering quality.β In DirectX 11 mode a full floating point R16G16B16A16 texture format is used, and this allows for true over bright colour ranges, while still preserving the colour depth of the main scene. at the expense of the colour depth of the main scene. in DirectX 9 this is done using the standard fixed point R8G8B8A8 texture format, and therefore the HDR effect is achieved. β Dirt 2 makes use of high dynamic range (HDR) lighting. Full floating point HDR lighting High dynamic range lighting (HDR) is a technique dating back to the days of Far Cry and Half Life 2, and while some developers may initially have struggled to apply it in a realistic or attractive manner, itβs now firmly established as a key 3D graphics technique.
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