hdri renderings

[mitviz]

does using a hdri in combination with the corona sun produce more noisy results than just the sun alone?

[maru]

I don't think it should produce more noise. Unless you are using Vray HDRI loader to load the HDRI - it is known to cause troubles. Or if you are using Corona Sun with no skylight at all - then I would say the sun with no sky could produce more noise than sun+hdr.

[mitviz]

actually i wad using the vray hdri loader, i have to run more tests, i am trying to render 5k images in a reasonable time frame but so far i see for an exterior scene it needs atleast 3 hours to give me what i need