[Radiance-general] error no valid view specified

[Lars O. Grobe]

Hi,

as you showed in your email, there was no view information in the image in the beginning (see getinfo output). Scaling the image down will not magically create that missing information.

If you know the vertical and horizontal view angles, you can add them to the image header. Radiance comes with a tool "vinfo", which allows you to edit the image header in the editor "vi". An example view line taken from an image I happen to have here is:

VIEW= -vtv -vp 0.412249 3.5 1.5 -vd 0.39426 -0.911112 -0.2 -vu 0 0 1 -vh 75 -vv 75 -vo 0 -va 0 -vs 0 -vl 0

So the syntax is what you know from writing view files. Of course, you must KNOW (not guess, copy, assume) the information on the view when manually editing it, otherwise this will result in entirely random results when you do glare evaluation using it.

Cheers, Lars.

> Hi,
> I have resized an image, i am not able to get the details of the hdr image and the lighting and glare values.Some of the commands are shown below:
> 
> C:\Users\Student\Downloads\EVALGLARE>getinfo -d newshdr.hdr
>  newshdr.hdr: -Y 1632 +X 2464
> C:\Users\Student\Downloads\EVALGLARE>pfilt -x /3 -y /3 newshdr.hdr > snewshdr.hdr
> C:\Users\Student\Downloads\EVALGLARE>evalglare snewshdr.hdr
> error: no valid view specified
> C:\Users\Student\Downloads\EVALGLARE>evalglare -d snewshdr.hdr
> error: no valid view specified
> 
> Please help me.
> Nithya Merin
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