Plants killing render times

[NiGMa]

Hi,

I am having a problem with my external architectural renders.

I can set the global kray setting to high and render without plants and it will render in probably 2hrs, but with plants turned on, that turns into 8-10hrs. To me, kray shouldn't spend so much time on bouncing lights around the inside of the plants. Does anybody know how to limit the number of bounces or quality of certain objects? that would really help me out. =)

Thanks

[NiGMa]

correction.. it takes about 16 times longer to render with plants on, the anti-aliasing step takes the longest.

NiGMa

[jure]

Yes AA on plants is problem at the moment. G. is trying to optimize that...

You can try rendering exterior with precomputed filtered, wtih raytrace direct light turned ON.

This will render very fast and it may be enough if you don't need very fine shadows.

[NiGMa]

Thanks Jure, Do you mean to render the whole image in Precomputed? wouldn't it have splotches everywhere? or were you thinking that I would only use the plants from that render, I mean cut them out and place them on the house render?

Does anybody else has any other ideas? which setting would have most effect on this? spatial tolerance? FG?

What is raytrace direct light turned ON?

[NiGMa]

ok guys, I have another question,

I have a new job where I will need realistic trees in front of a high rise, problem is though is that its an animation. So I need a fast realistic tree solution, would it be possible to render in two passes one without trees and one with? maybe trees would render fast if I turned a certain setting lower? what would this setting be? spatial tolerance?

Please help, thanks guys

NiGMa

[NiGMa]

Wow, Jure, I just found out what you meant by Precomputed Filtered with Raytrace ON, it is super fast for trees! The only thing is there a few splotches, I will be trying to use this for the new job I have. =) Thanks for the tip!

NiGMa

[jure]

You will be able to reduce spoltches by increasing N and/or precache blur in photons tab.

cheers!

[sarford]

ok guys, I have another question,

I have a new job where I will need realistic trees in front of a high rise, problem is though is that its an animation. So I need a fast realistic tree solution, would it be possible to render in two passes one without trees and one with? maybe trees would render fast if I turned a certain setting lower? what would this setting be? spatial tolerance?

Please help, thanks guys

NiGMa

I think the best solution would be to render the trees and reflections (those reflections wich would have the trees in them) in LW, that way you'll have the alpha maps to seamlessly comp your trees in the kray render. Kray doesn't render alpha yet as far as I know, though it is planned.