[Radiance-general] glare analysis

[Lars O. Grobe]

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.