[csu540-f05-rpf] [csu540-f05] SP3 question

[Robert Futrelle]

I'll answer you in about an hour, soon as I get home.

    rpf


>I have a quick question. When you do the ray trace and your ray hits 
>a point in a triangle, how do you get the z-coordinate of that 
>point? I am having difficulties trying to ray trace back to the 
>light source from a point on a triangle.
>
>Thanks.
>
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