“Dynamic range” is the amount of data about the brightness of the image such data is the much larger amount of the information than the human eye is able to catch. For example, the use of an incorrect focal distance or a slow shutter speed. Creating high-quality HDRI from scratch is a difficult task that requires very specific equipment and meticulous attitude to the entire process. The easiest way to light a scene in the CG is the use of HDRI. HDRI is a panoramic photo, which covers all angles from a single point and contains a large amount of data (usually 32 bits per pixel per channel), which can be used for the illumination of CG scene.Ī simple 3D scene, which was lighted only with HDRI: The second part will be provided in the upcoming days and will describe step-by-step instructions on how to create the HDRI. This article describes the basic concepts and the necessary equipment to create own HDRI.
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