Hi Germán,
Why not use a tensor tree output of genBSDF in this case? High resolution on incoming and outgoing angles where it matters is why it was developed. You can use the C routines to query the TT directly, or use bsdf2rad to generate a Radiance model for visualization.
Cheers,
-Greg
···
From: CHI-German Molina <[email protected]>
Date: February 14, 2014 8:17:12 AM PSTHi Lars, Thanks a lot for the quick answer, but I think my question was not really clear.
What I want to achieve is to get the directional transmitance from" any" angle. Interpolating would allow me getting a continuous (although not really exact) value. This is mainly for visualization purposes, not really for getting exact values. By increasing the number of patches I would have a better resolution, but still I would have "bins" and not a continuous value.
I hope is clear. If it is too hard (i.e. there is not any program that does it for me), I can just increase the number of bins, and just smooth the final image.
Thanks a lot!
Germán
2014-02-14 12:01 GMT-03:00 Lars O. Grobe <[email protected]>:
Hi German,there will be no light loss. However interpolation does not increase resolution. Think of it as if you were taking a picture with a smartphone from the 90's - the overall average luminance may be correct, but you will never be able to add information on detail in between the pixels by interpolation. So if you want / need high resolution, run genBSDF accordingly.
Cheers, Lars.
> By the way, my idea would be to:
>
> 1.- genBSDF the BSDF of a product (klems basis, maybe Klems MF:N)
> 2.- from that matrix, interpolate and generate plots.
>
> I will also have to deal with the loss of energy due to sharp light sources...? That is something that I do not understand yet.
>
> THANKS AGAIN, any comments welcome.
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