honeybee_plus.radiance.material.transfunc module

Radiance Transfunc Material.

http://radsite.lbl.gov/radiance/refer/ray.html#Transfunc

class honeybee_plus.radiance.material.transfunc.Transfunc(name, modifier=None, values=None, is_opaque=None)

Bases: honeybee_plus.radiance.material.materialbase.RadianceMaterial

Radiance Transfunc Material.

Transfunc is similar to plasfunc but with an arbitrary bidirectional transmittance distribution as well as a reflectance distribution. Both reflectance and transmittance are specified with the same function.

mod transfunc id 2+ brtd funcfile transform 0 6+ red green blue rspec trans tspec A7 ..

Where trans is the total light transmitted and tspec is the non-Lambertian fraction of transmitted light. The function brtd should integrate to 1 over each projected hemisphere.