Render West Park Admin Level

nicstt

Link to item

http://www.daz3d.com/west-park-administration-level

Trying to figure out if there is some setting I am missing under Iray.

Iray INFO - module:category(IRAY:RENDER): 1.0 IRAY rend info : Device statistics:
Iray INFO - module:category(IRAY:RENDER): 1.0 IRAY rend info : CUDA device 0 (GeForce GTX 970): 15000 iterations, 32.376s init, 1544.528s render
Total Rendering Time: 26 minutes 18.65 seconds
image 800x450

One light (other than environment from iray), I've also tried more lights and it gets worse if anything not better but not much difference.

Notice it did 15000 iterations and it's stlll noise; wondering if a way of speeding it up.

I've tried removing all unrequired geometry and it makes no difference to the times. Or nothing that couldn't be explained by the simple fact repeating will give different results.

I've rendered scenes with two and more figures in it, and at a highre resolution and nothing like this time v quality.

I really like the West Part items, very atmospheric, but it makes em time-consuming to use.

nicstt

One thing I realised I hadn't done, was use a plain instead of adding the light mat to the provided geometry.

Below is the result of using a plain positioned approximately where the lights are.

Iray INFO - module:category(IRAY:RENDER): 1.0 IRAY rend info : Device statistics:
Iray INFO - module:category(IRAY:RENDER): 1.0 IRAY rend info : CUDA device 0 (GeForce GTX 970): 2959 iterations, 32.178s init, 281.953s render
Total Rendering Time: 5 minutes 15.90 seconds

As you can see, it is much faster, and by a huge amount.
EDIT:
And it does it in 2959 iterations, not 15000.