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Update for 10-11-22 21:00

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Tyler Perkins 2022-11-10 21:00:01 -05:00
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tech/light_transport.wiki
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@ -117,3 +117,13 @@ Light output(x, vector w) = Light emitted(x, vector w)
+ Integral of (Light incoming to x from vector w * BRFD(vector w, x vector w + Integral of (Light incoming to x from vector w * BRFD(vector w, x vector w
prime) cos theta dw prime) cos theta dw
}}} }}}
Problems with above
* The exitant radiance of a point x depends on the incoming radiance of every
other point, which also depends on x
* We cannot solve this integral in closed form
* The integral is infinite dimensional
* It is singular
We simply dont know enough to even start