[Radiance-general] sharing the ambient cache

[Rob Guglielmetti]

Greg Ward wrote:

> Hi John,
>
> Just goes to show, when it comes to the older algorithms, it's best  
> to follow my old advice rather than my new advice...  Clearly, I  
> thought about this more carefully before, and there are good reasons  
> for not changing the -ar parameter in subsequent runs.  I think the  
> artifacts you're seeing are due to the mix of new values and older  
> ones, both of which get included in the interpolation step.  The new  
> values cover a wider area than the old ones (and wider than they  
> should).  The splotchy look is due to the way the interpolation  
> algorithm works, and is even worse than I'd expect from reducing the - 
> ab value.

Hi gang,

Thanks to everyone who got involved in this thread.  John, your analysis 
proves what I had been fearful of.  Very interesting!

Radiance: You'll never quite master it (but you'll have fun along the way).

- Rob Guglielmetti