Скачать или смотреть OpenGL ES 3.0 HDR Automatic Exposure (Eye Adaptation)

After a long time wandering with some post processing techniques, I came accross the one called eye adaptation where I discovered for the first time the Compute Shader as trying to learn it. The Compute Shader is really a strong and fantastic tool that I has alway been looking for. It allows processing huge amount of data parallelly in the GPU realm. To calculate the average luminance of the scene is the first use I made out of the compute shader tool. Having the average luminance the scene exposure can be adjusted automatically according to that center point. That process of adjustment is called tone mapping. The final result is the human like eye adaptation.
That's one use. There must be more other cool things we can do with Compute Shader: Ray cast rendering, SSAO, Volumetric lighting. to name a few. :)))) an exciting journey ahead.

Music: Seems so long ago, Nancy - Piano by Marco Benevento