Understanding image-based lighting


show more Understanding image-based lighting provides you with in-depth training on 3D + Animation. Taught by Aaron F. Ross as part of the Creating Product Shots in 3ds Max show less
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Understanding image-based lighting

Image-based lighting, or IBL, is a technique for lighting a 3D scene using a special type of image file. This is known as a high dynamic range or HDR file. Instead of conventional 3D lights, the scene is illuminated by the brightness of pixels in an environment map. The image is usually captured from a real-world location, and because of this, the 3D rendered objects can be made to look as if they're actually in that real environment. Image based lighting requires that the environment map have a greater range of brightness values than a standard image. A high dynamic range image can capture all the possible brightness values that the human eye can see.

The dynamic range of a signal is the ratio between its highest and lowest values. And for light, it's also expressed as contrast ratio. The human eye has a contrast ratio of about a million to one. But a standard camera or an ordinary image file has a contrast ratio of about a thousand to one. Contrast ratio can also be expressed in terms of F-st...

Understanding image-based lighting
Video duration: 2m 42s 3h 25m Intermediate

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Understanding image-based lighting provides you with in-depth training on 3D + Animation. Taught by Aaron F. Ross as part of the Creating Product Shots in 3ds Max

Subjects:
3D + Animation CAD
Software:
3ds Max
Author:
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