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Need feedback on my notetaking: Is my light diffusion notes correct?

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I would like to have feedback on my notes about light diffusion. I wanted to get it correct so that I know what it is and what to look for in my notes when I want to find it again. I do stress that I wanted to keep it simple, and easy for me to read and digest, rather than having to go over certain terms that is being used. This way, I can avoid having to look up the term on Wikipedia or Google, in case I truly forgot.

 

This is the light diffusion notes:

 

 

Adding colors is used to add brightness and contrast to colors being chosen.

Multiplying colors of similar hue and color gives minimal differences, this can be used on determining how much light is being reflected on the surface, and how much color has been reflected from the light source to the eyes of a viewer. However, with different hues and colors, it would give the polar opposite, making the target color duller and washed out than before.

For a given light source, S, when I shine the directional light onto a surface, the diffuse intensity of the light is determined by the dot product of the directional light vector and the reflection vector.

That dot product must then multiplied multiple times by itself, which gives me the tiny, yet different, hues and colors of the object's surface color. These colors, when spread out from the maximum light diffuse intensity on the surface of the object (i.e., the white light), will create the illusion of light and shadow.

Note that for objects that reflect light, each of them has a spectral value, named "specular value", which is a value that determines how spread out the light diffuse is on the surface of the object. This value is used to determine the object's shininess. For example, metal objects have a higher spectral value, while plastic and wood have a lower spectral value.

 

I appreciate any feedback. Thanks for your time.

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