Hi,
When I render an animation using radiosity I need to recalculate radiosity
information for each frame. This causes a very long time to render the
animation. And the question is: It is possible to create an animation using
radiosity without recalculating the radiosity information for each frame? It
is possible to reuse radiosity information from previous frames?

The animation is an indoor which the camera is the only thing changing its
position.

Regards,

Joel.

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JSR nous apporta ses lumieres en ce 17-01-2007 10:54:
> Hi,
> When I render an animation using radiosity I need to recalculate radiosity
> information for each frame. This causes a very long time to render the
> animation. And the question is: It is possible to create an animation using
> radiosity without recalculating the radiosity information for each frame? It
> is possible to reuse radiosity information from previous frames?

> The animation is an indoor which the camera is the only thing changing its
> position.

> Regards,

> Joel.


You need to save the radiosity information (ex.: save_file "MyRad.dat")then to 
read it back for the next frame (#if(frame_number>1)load_file "MyRad.dat" #end). 
The next frame will still collect some more radiosity samples, but those can, in 
turn, be saved with the previous ones. That way, each frame will need to 
calculate less radiosity data than the preceding.
In each frame but the first, set always_sample off. If there is need for more 
samples, more will be taken. You can also reduce the other parameters a bit.

-- 
Alain
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Thomas Jefferson

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