[Radiance-general] glare analysis

[Reinhart, Christoph]

I agree with Lars. I would rather re-render the images. 

Too bad that I missed the Radiance workshop. I was in Germany celebrating my Grandpa's 95th birthday.

Christoph 

-----Original Message-----
From: Lars O. Grobe [mailto:grobe at gmx.net] 
Sent: Monday, August 29, 2011 10:18 AM
To: Radiance general discussion
Subject: Re: [Radiance-general] glare analysis

Hi Dharam,

I guess you would be able to implement a reprojection for the images, either using Radiance's tools or any other software. You could e.g. 
start with vwrays -vta (...), which would give you for each pixel of your required -vta-projection the corresponding vectors. Using rcalc, you could calculate backwards at which pixel-coordinates in a vth-projected image of given dimensions the pixel-value for this direction is found. The problem is that there will be some interpolation needed in the process. I am not sure whether this will be faster then re-rendering the images. Did you keep all the files for the renderings, especially the ambient data? Depending on how you did the renderings, doing a second run with only changed view-parameters, but existing ambient cache data could be very quick.

Cheers, Lars.

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