[Bf-vfx] HDRI (paper on capture techniques and more)

[Dalai Felinto]

Hi there,

I ran into this paper which gives a very complete overview of different
techniques for environmental lighting capturing, comparisons, ... for
example it compares to use of mirror balls, fisheye stitched images or
professional all-in-one equipments.

http://www.hdrlabs.com/tutorials/downloads_files/HDRI%20for%20CGI.pdf

I thought that could be of use for Mango team.


* note: I'm exploring recently building spherical panoramas for lighting
AND for background plate. That is a bit different from Mango that needs IBL
(Image Based Lighting) but not necessarily the background part of it. This
paper may still inspire some ideas though.

* note2: a recent capture we took here with 6 (side with zenith) + 4 photos
(nadir) . We are quite happy with the LDR (and it's damned fast as a
workflow), but the HDR is yet to be mastered (and Hugin is not working well
for this):

http://dalaifelinto.com/ftp/impa/ldr_25.jpg (2K)
http://dalaifelinto.com/ftp/impa/ldr_100.jpg (8K)

Cheers,
Dalai
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