[Radiance-general] about file *.vf in radiance software

[imenslama at voila.fr]

hi,
thank you to Axel and Roberts for all these clarifications.
imène


> Message du 17/07/12 à 21h57
> De : "Axel Jacobs" 
> A : radiance-general at radiance-online.org
> Copie à : 
> Objet : [Radiance-general] about file *.vf in radiance software
> 
> Hi Imene,
> 
> >> in Radince Tutorial given in this site :
> >> http://www.jaloxa.eu/resources/radiance/documentation/docs/radiance_tutorial.pdf
> >> and in page 28, after creating scene.oct, I try to make : rvu -vf
> >> views/nice.vf scene.oct but i have this message : cannot open view file
> >> "view/nice.vf", so how to create a file nice.vf and what are its parameters?
> >> thank you
> >> Im?ne
> 
> > Did you download the tutorial files? They can be found here:
> >
> > http://www.jaloxa.eu/resources/radiance/documentation/docs/radfiles_tutorial.zip
> >
> > I believe that this has what you need to work through the tutorial
> > including views/nice.vf.
> >
> > -Jack
> 
> Just to add to Jack's and Thomas' replies to your question (I'm assuming 
> you're using a UNIX version of Radiance). You're probably wondering now 
> how this view file was created in the first place.
> 
> If you run
> $ rvu scene.oct
> the interactive Radiance scene viewer rvu is launched with your scene in 
> it. BTW: If you are reading some VERY old documentation which is still 
> out there on the Internet, the command would be 'rview', not 'rvu'. You 
> can now use the command prompt at the bottom of the rvu window to move 
> the camera around. A list of the most useful rvu commands is in the 
> table on p18 of the Tutorial. Apart from 'aim', which is always handy, 
> the commands I use most often are:
> 
> - when inside a room: 'rotate'
> - when looking from the outside: 'pivot'
> 
> The tricky bit is always to get the view point right. If you are inside 
> a room, a good starting point is to identify a good view point (think 
> tripod and camera) by looking at your plan and elevations/sections 
> which, of course, you have at least as scribble on a bit of paper.
> 
> For external views, a good start is to first run
> $ objview scene.mat scene.rad etc
> 
> objview takes the material and scene files, adds a few light sources, 
> compiles an octree, and then calls rvu. Now use 'pivot' (and the other 
> rvu commands to move around the model. Once you have a good view, save 
> it like this from the rvu prompt:
> : view views/nice.vf
> : q
> 
> You can now run rvu to look at the scene under your proper light 
> sources, rather than the ones objview puts in:
> $ rvu -vf views/nice.vf scene.oct
> 
> Or, you can run
> $ rvu scene.oct
> and
> : last views/nice.vf
> 
> Hope this helps
> 
> Regards
> 
> Axel
> 
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