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| § |
The surfaces of
the environment are broken into a finite number of
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patches
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§ |
Patches assumed
to have constant radiosity and diffuse albedo
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| § |
For each patch:
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Bi = Ei
+ ρiΣjBjFij
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Bi is
the radiosity
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Ei is
the emission
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ρi
is the diffuse albedo
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Fij
is the form factor between the patches
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The form factor
is the total power leaving patch i that is received
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by patch j
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| § |
Bi
and Ei are measured from a photo with known geometry. Fij
is
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derived from
the geometry. So we can find the
diffuse portion of the
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reflection:
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§ |
ρi
= (Bi - Ei)/(ΣjBjFij)
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