By combining the range of values from each image at different exposures, you end up with an image that has a greater dynamic range. A common JPEG image has a limited range of values (lights and darks). The result contains lots of detail both in the darkest and brightest areas of an image. Combine the same image at various exposures to make a single HDRI image. HDRI stands for High-Dynamic Range Image. TLDR The over-simplified summary: HDRIs are faster to set up and render, whereas physical lights will offer more realism and more control at the expense of setup time and complexity. Can you tell which one is lit by an area light and which is lit by an HDRI? Let’s look at the pros, cons, differences and scenarios in which you’d use HDRI lighting versus physical lights in KeyShot. Want to light with confidence and speed? You’ll be one step closer by the time you finish this article! By understanding a few simple rules about lights and which to use, you too can put an end to second guesses. But what if you knew which option to use BEFORE going into trial-and-error mode? But do you know when to use a KeyShot HDRI vs physical lights? KeyShot has two methods of lighting, five physical light types and dozens of settings for each. Everyone knows lighting can make or break an image.
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