do you pre calc the light cache separately or not

[pg1]

The help file - rendering a walk through animation, breaks down into 3 parts

Calculating the light cache (Light cache first and second bounce, then save it)
Calculating the irradiance map (Irmap first lload pre-saved light cache for second)
Rendering the final animation

The help file also says
There is no difference between light caches computed for primary bounces (direct visualization) and for secondary bounces. You can safely use light caches computed in one of these modes for the other.

So why calculate it separately?

where I am working we do a 2 step process

the light cache and irmap at the same time
Calculating the light cache for second bounce (fly through and save) Calculating the irradiance map for primary bounce

Then
Rendering the final animation

This is the same 2 step method outlined in the new help file entry- Rendering an animation with moving objects II
Although this is about the new animation modes for the Irmap it is a 2 step process not 3 steps like the- rendering a walk through animation Help file
This seems to work fine so is the help file- rendering a walk through animation out of date?

The same question (more or less got asked in this thread)

http://www.chaosgroup.com/forums/vbu...ht=camera+path

[tammo]

I have just tried this two step method and it works!

Calculating the light cache and irmap at the same time looks exactly like if you do it in two seperate passes.

Thanks for saving me some time on the next projects!

[pg1]

no problem tammo glad to help

[MegaPixel]

Do you calculate the LC on Flythrough mode or Single Frame mode when doing the 2-step process? Can Single Frame mode with IR be made to produce flicker free results?

[pg1]

flythrough mode for light cache and as long as you tick use camera path with irmap you can use single frame

[cashgrow]

thought lightcache should also be - Singleframe with camera path ticked.. ?

this works for flickerfree flythroughs.. is it the same?