On 1/3/26 13:41, Alain Martel wrote:
> When you use count, the count value is the total number of photons to be 
> shot, distributed between all targets and all lights. The area, or 
> angular size, of the targets also play a role. A big target will tend to 
> get more photons than a small target next to it.
> 
> The photon shooting always try to keep the photon density constant 
> between all targets.
> 
> count 1 000 000
> two lights and two targets of roughly the same size, and each light will 
> shoot about 250 000 photons at each target.
> 
> Have three targets, and you shoot about 166 666 photons per light at 
> each target.

Thank you, Alain. More I didn't know! :-)

Bill P.

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