[Radiance-general] Ranimate / Mkillum issue

[Greg Ward]

Hi Mark,

> From: "Mark de la Fuente" <MdelaFuente at wmtao.com>
> Date: April 18, 2004 9:50:58 AM PDT
>
> ** Proprietary **

Huh?  If this information is really "proprietary," the last thing you 
should be doing is posting it to a public discussion list.  I assume 
you meant another word, here.

> [...]
> The problem is that the illum.dat files are not being updated for each
> image and considering the fact that the sky is changing for each frame,
> it seems to me like they should be.  Perhaps ranimate was really only
> meant to deal with static lighting scenes with movable objects/camera
> positions?

Indeed, ranimate's support of changing illumination and geometry is 
minimal.  You are responsible for any frame updates yourself within 
your "genoctree_a.script" file.  You are free to use rad to help you 
with this.  Your script file currently changes the sky and expects 
ranimate to figure out what that means, but how could it?  What you 
need to do is make the octree created by rad depend on some file that 
is altered in your script, like so:

	frame=$1
	time=`ev "5.25+($frame/4)"`
	gensky 3 21 $time +s -a 38.7 -o 90.5 -m 90 > sun.rad
	rad -v 0
	cat ./octree/lobby_a.oct

Then, to "lobby_a.rif" you should add:

	scene= sun.rad sky.rad

Your current rad input file is broken in the sense that it doesn't have 
the information it needs to generate correct illum's.  This is where 
your problems began.

Hope this helps.
-Greg