how to render all at the same time?

thanks for your reply, it's really a big help.
thanks for pointing out for the flat lighting, actually i didn't use daylight for the first render. I still trying to figure out how to make some light casting through the opening where the stair come down.
As for the low poly, i guess i will need to ...

any comments?

I'm using nVidia Nvidia N11M-GE1 (Driver)
Release Date: 11/29/2010
Version: 189.99, A02
http://support.ap.dell.com/support/down ... id=&impid=

any suggestion?

anyone could help?
octane demo can't seem to detect geforce 310m on my vostro 3400, is it due to optimus?



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thanks for all of the suggestion.

thanks for the advice
If I get a desktop instead,

512MB PCIe x16 nVidia Quadro FX580, DisplayPort,DVI Capable
Intel(R) Core(TM) i5-750 (2.66GHz,8MB)
4GB, DDR3 non-ECC SDRAM Memory1333MHz, 2X2GB

But when I check the FX580 have even less cuda cores (32 cuda cores) and lower memory
Even FX1800 would ...

I would like to know if I use
Nvidia® Geforce™ GT 330M, 1GB Graphics
Intel® Core™ i5 460M (2.53GHz base, up to 2.8GHz, 2C/4T, 3MB L3)
3GB (1X2G+1X1G) DDR3-1066MHz SDRAM, 2 DIMM

Would octane be fast enough on this laptop?

Thanks in advance for any advice