This allows them to store exponentially more information about the light, color and intensity captured by a camera. These images are 32-bit per channel compared to the 8-bit per channel for standard jpegs. exr are the popular ones for storing HDRI data. For this purpose we need high dynamic range images. It can even be used as an approximation for global illumination, since it lights the scene from all possible directions.īut for capturing light data from the real world, a simple jpeg panorama won’t do. As a result, you get accurate global lighting that virtual lights can seldom match. Capture a 360 degree view of the real world and use it to light your CG scene. The idea behind this method is simple but brilliant. Image based lighting using High Dynamic Range Images (HDRI) has become a staple lighting method in the visualization arena.
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