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The Refraction input takes in a texture or value that simulates the index of refraction of the surface. This is useful for things like glass and water, which refract light that passes through them.
Common Indices of Refraction |
|
---|---|
Air |
1.00 |
Water |
1.33 |
Ice |
1.31 |
Glass |
1.52 |
Diamond |
2.42 |