[Radiance-general] animation format

Tue, 11 Feb 2003 13:17:31 +0530

hi Greg,
thanx for the previous mail abt generating the frmaes for animation.i have
generated the frames , could u please guide me how to convert them into mpeg
format or any other video format . is there any software available in linux
that does this .
Also , i want to simulate a fish eye lens , i want to place the camera with
fish eye lens on the ceiling so that i can get the view of the whole room
which later i want to do some image processing on it .
so if u could send me the details abt fish eye lens , it would be of great
help
thanking u
gurneet
----- Original Message -----
From: "Greg Ward" <[email protected]>
To: <[email protected]>
Sent: Wednesday, November 27, 2002 11:12 PM
Subject: [Radiance-general] Re: Rendering Panoramas


> Hi Lars,
>
> Rob has some good tips about using rad to generate rendering options
> using the OPTFILE setting, and I use this feature a lot, myself.  There
> are many ways to run the rad command, and the man page is the best
> place to look for understanding these.  In its most basic form, it acts
> like a simple makefile to build an octree, optionally running mkillum,
> and maintain a set of rendered and filtered pictures.
>
> However, if you're doing a set of runs over different lighting
> configurations, scene alternatives, etc., you often need a lot more
> than rad can offer in terms of scene building.  I sometimes use a
> makefile to maintain the various octrees I use based on scene input,
> then employ a rad input file that specifies only the OCTREE setting --
> no explicit scene files.  This can also be specified on the rad command
> line, so a single rad input file can suffice for many scene
> alternatives.
>
> For generating animations, the ranimate program does a reasonable job,
> though it really needs updating for running animations over a network
> now that rsh no longer exists....
>
> With regard to fisheye projections, the -vta option can go up to a 360
> degree field of view, where you get a circular image whose
> circumference is essentially a single value corresponding to the
> direction opposite the -vd parameter.  I don't know anything about
> ptviewer, or the kinds of projections it uses.  You may need to write a
> script and pass it to rtrace with the -fac (and -x & -y) options to
> take ray origin and direction on the input and produce a color picture
> on the output.  Using this method, you can get any projection onto a
> rectangular image that you can describe mathematically.
>
> -Greg
>
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