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Note: This is for a single light. If multiple lights are used, one computes a colour for each light source (and sums all the colours up).

For computational efficiency, Blinn modified the Phong model. Instead of basing the specular reflection on the angle α between

A light’s specular component

The colour resulting from the specular reflection is

where n is the shininess.

High

Exercise

Fill out the following table for the terms in the Blinn-Phong reflectance model.

Hint: remember the equation

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