[Radiance-general] gensky question

[Chris Foster]

Hi Tom,

Thanks for your help. The angles thing has sorted itself out now. I thought i read somewhere that east of south was positive, but obviously not! From my results it makes sense if it were your way.

I near enough did what you recommended already, but i dont think i clarified what i wanted judging by your response.

>>If I understand you right you want a material with 100 % diffuse transmittance.

I am after a material with 100% diffuse reflectance

My material,reflector.rad

void plastic reflector_mat
0
0
5 1 1 1 0 0 

reflector_mat ring reflector
0
0
8 0 0 0
  0 -1 0
  5 0

An example of one of my xforms,

!xform -n reflector -t 0 0 10 -rz 38 -rx -48.8 reflector.rad

These angles are following the azimuth and altitude of the sun, i used rz and rx because of the way my ring was made. I have made my plastic material with a 0,0 spec and roughness value to get a perflectly reflecting diffuse surface (r,g,b are 1,1,1). Im now aim to look directly at my surface and measure the luminance from it.
  
There isnt really a question in this email, just thought id reply to yours, thanks for your help!

Chris


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