[Radiance-general] rendering large space with small detail

[Rob Guglielmetti]

On May 20, 2009, at 9:19 AM, Evangelos Christakou wrote:

> Hi,
> Thinking about the difference between photorealism rendering and light
> visualization related in RWR chapter 1, pag 4 and 5. I'd like to
> elucidate some questions about this topic:
> Doing so, ( procedures included below by example), is still a
> phisically based simulation?
> Is it a valid procedure to predict how natural light behaves inside  
> this space?
> Is it a valid method to get fast, acurate and predictive daylight  
> calculation?

Hi Evangelos,

I'm a little confused by your email. Are you asking about the validity  
of things such as mkillum in a predictive lighting calculation?  
Because mkillum is most definitely a physically-based approach. As  
with any simulation method, the user and his or her assumptions factor  
into the equation, but using mkillum to essentially bring the direct  
calculation closer to the surfaces of interest, when properly used, is  
most definitely a valid procedure.

- Rob Guglielmetti