[Radiance-general] genklemsamp - surface orientation

[Germán Molina Larrain]

Jack,

What you say about the VMX and DMX are correct.

For the up direction, if the window is not a skylight, the 0 0 1 can be
used; but it has to be noted that that direction will be projected over the
plane of the window, so, in reality, it will not be 0 0 1 anymore.

German
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