[Radiance-general] Re: Cumulative calculations of irradiance

[Iván Pajares Sánchez]

>
> Hi Iván,
>
> Regarding your calculation of kWh / m2, you should probably use -m  
> 0.0005 if you are adding up values every half hour rather than once  
> per hour.
>   
Absolutely, I was testing with 1 hour intervals then going up.
> As for the -i option not doing quite what you want, glass and other  
> transparent surfaces are excepted for this calculation and pass  
> through to whatever lies beyond.  
For the moment my model is a sort of a 'cardboard' model to estimate 
incident irradiance on exterior-yet-undefined surfaces.
> Under circumstances where you are  
> after a rendering of visible surfaces, this is usually preferred.  To  
> get the irradiance on every surface regardless of type, use:
>
> 	vwrays -x xres -y yres [view options] -fd \
> 		| rtrace -fd -h -opN scene.oct \
> 		| rtrace -fdc -I `vwrays -d -x xres -y yres [view options]`scene.oct \
> 		> irradiance.pic
>
> Vwrays produces the view rays, which the first rtrace very quickly  
> turns into intersection points and surface normals.  These are then  
> passed to the second rtrace as irradiance measurement points.  The  
> second invocation of vwrays in backwards quotes is simply there to  
> tell the second rtrace the image dimensions.
>
> I hope this helps.
> -Greg
>
>   
Thank you for your help Greg. Let me add another question:

the vwrays lines you sent uses inline commands which I cannot mimic in 
windows shell, can someone pont me to some source on how to place 
'inline' commands in windows shell commands? (using F Anselmo's Mingw 
Radiance binaries)

Thanks again.

Iván