[Radiance-general] Re: COMBINING PHONG SMOOTHING AND UV BITMAP MAPPING AT FACE LEVEL

[radiance-general@radiance-online.org]

Hi John,

If you can run Radiance 3.5 on Unix, you will have access to the
new "mesh" primitive, which permits both (u,v) local coordinate
mapping and Phong surface normal interpolation.  You can convert
from Wavefront .OBJ files using the new "obj2mesh" program.  See
the following link for details:

  http://radsite.lbl.gov/radiance/man_html/obj2mesh.1.html

Unfortunately, there is a bug in the official 3.5 release in
the index computation for (u,v) coordinates, and you will need
to download and compile the most recent version of the source 
code from radiance-online to get this to work:

  http://www.radiance-online.org/software/

It does not compile on Windows currently, so if you require
a working Windows version, you'll have some time to wait...

-Greg

Quoting Digital Architectural Illustration Services 
<Daiservices@btinternet.com>:

> Dear RADIANCE users
> 
> Thank you for your assistance with my previous request.
> 
> I have been attempting to combine two useful rendering features of
> RADIANCE: phong smoothing and UV bitmap mapping at face level.
> 
> The techniques at achieving either have been established, but I
> have attempted to bring them both together to refine the quality of RADIANCE
> renders.  I generally use RADIANCE for architectural illustration work and I
> am attempting to derive the most out its material rendering capabilities.
> 
> Please visit the following hyperlink on my Internet site to view a gallery
> of my rendering attempts and the problem discussed in greater detail.
> (Previous problems with my Internet site have been corrected).
> 
> www.daiservices.btinternet.co.uk/Radiance/Radiance_v3_5_UNIX/Phong_shading_a
> nd_bitmap_textures/Phong_shading_and_bitmap_textures.htm
> 
> Assistance from users is most appreciated.
> 
> Kind regards
> 
> John MacKenzie Graham
> Digital Architectural Illustration Services