caustic subdivs & points

[duduchier]

Hi,

 

I'm having huge difficulties with caustics...

 

I'm using caustics with a high caustic subdivs amount : 40000 from one Target Dir light.

I can see the caustic patterns appearing properly.

 

After a while, the process ends leaving only many separate points. I want much more points. I though subdivs at 40000 was enough... When I increase the subdivs amount, for instance 50000, I get nothing at all.

 

I also set "Max photon" to 0 and "Max density" to 0. Trying other values does not change much.

I set "don't render final image".

 

Do you have an idea how to increase the amount of points (photons?)?

 

I'm using 3DSmax 2013 with Vray 2.3.

 

Thanks for you precious help !

Edited August 14, 2012 by duduchier