[Radiance-general] trans material - tspec comparison

[Shrikar Bhave]

Hello All,

For tspec comparison,  I rendered the same scene for four different tspec
values of 10%, 50%, 90% and 100% (ideal diffuser).

I was expecting varying amount of diffusion, but I am getting puzzling
results. only 100% (ideal diffuse) value returns no direct sun-patch. All
the other values show a clear sun-patch in the space.

Any clue why this is happening? Would you expect such results? Everything
else is constant in the model. (images are attached)

Thanks,

Shri
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