Ambient light is the result of....
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the result of multiple interactions between(large) light soruces and the objects in the environment
amount and color depend on both the color of the lights(s) and the material properties of the object
Add Ka Ia to diffuse and specular terms
ka is the reflection coef
Ia intensity of ambient light
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Distance terms
The light from a point source that reaches a surface is.....
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inversely proportional to the square of the distance between them
we can add a factor of the form
1/(ad + bd + cd^2) to the diffuse and specular terms
* The constant and linear terms soften the effect of the point source
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Under the phong model
Each light source has separate
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diffue, specular and ambient terms to allow for maximum flexitiliby even thouh this form does not have a physical justfication
separate red, green, and blue components
therefore, 9 coefficients for each point source
Idr, Idg, Idb, Isr, Isg, Isb, Iar, Iag, Iab
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