[Radiance-general] applied material to all faces of a genbox

[steve michel]

For any interested , I too found that documentation useful to 'unblock' my initial difficulty with image mapping.

BTW Matiu Carr's Image mapping has a snippet of the picture.cal function code. This documentation is helpful but I found out the latest picture.cal packaged with radiance3.8 file has commented lines in picture.cal describing what each item does in the function.

Now Im wondering if there is a valid way of mapping a panaromic pic for a view through those wonderful daylight views we love so much.
The doc shows mapping on a tube with cyl.cal as way of doing just that. But that might interfere with skyglow and ruin the lux readings? Would a HDR mage mapped to the sky itself with sky luminance values 'indexed' to the bitmap's rgb values achieve a more accurate result?? 

Steve



----------------------------------------
> From: thdyoung at mac.com
> Subject: Re: [Radiance-general] applied material to all faces of a genbox
> Date: Sat, 3 May 2008 09:51:14 +0100
> To: radiance-general at radiance-online.org
> 
> hi Axel
> 
> i've printed the pdf out and am now going to log-out and read it over  
> a cup of coffee in good ol' Kentish Town Road.
> 
> Many thanks.
> 
> regards
> 
> tom
> 
> On 2 May 2008, at 22:46, Axel Jacobs wrote:
> 
>> Hi Tom,
>>
>> there is a really well-written document on the Radiance FTP site by
>> Matiu Carr titled 'Image Mapping'. It is in some obscure compression
>> and format (uuencoded Word 2.0 for Mac). You may pick up a PDF from
>> here:
>>
>> http://luminance.londonmet.ac.uk/pickup/image_mapping1.pdf
>>
>> Cheers
>>
>> Axel
>>
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