meeting room

[talats]

prerender 1,2,0.01;gradients_neighbour 0.1

What does it means? And what it does exactly?

better is:

prerender 1,2,0.05;gradients_neighbour 0.05



switch`s prerender:

1 - percent detection (1 is 100% , 0.5 is 50% of all samples) best is 1

2 - how many passes (1 is default , this no work, 2 is two passes - You recive extra samples), I thing 2 or 3 is maximum

0.05 - treshold of detection (smaller bigger dettection)


gradients_neighbour 0.05 - blurr engine for samples (0.1 small blurr but faster render, 0.01 stronger blurr but slower render)


Now when You recive new extra samles You can use smaller FG in Kray for example:
prerender 1,2,0.05;gradients_neighbour 0.05 You can use FG 200/600 min/max spacing 40/1000 , FG blurr 0 (or small 1-2)

Now render is very fast (becouse You have small FG) and You have good GI shadows silimar to QMC.
Of coarse You need experiment with this. You can use 10 passes:
prerender 1,10,0.05;gradients_neighbour 0.05 and after that very small FG: 10/50
And ultra fast AA and blurr becouse AA depeds from FG (small FG - fast AA, blurr etc...)

Jhony, thanks a lot, really... Without you and some other guys, I would be lose.

[talats]

about AA

Wich is the best parameters to get quality but also speed in rendering?
rignt now I'm trying with Box Filter, grid 3, radius 0.5, threshold 0.002... The quality is almost like the high preset but the rendering time is too high (rendering resolution 1600 x 875)

[Janusz Biela]

for small renders : under 1000 pix best for me is FSAA G5 BOX 0.6 - 0.7 Rotate
for bigger renders: FSAA G3 BOX 1.0 Rotate

[talats]

I've applied the settings you gave me... But the rendering is still too slow (about 40 minutes) and the AA seems to make the image little out of focus... And I still have splotches... anyway, take a look

[jure]

Better yes. 40 min slow? On what computer?

The render is too soft yes. Too big AA filter size? Splotches will go away if you use more FG rays. But be careful! Prerender currently only works without shared GI mode.