plants, flowers and rendertime ?

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mk
Posts: 28
Joined: Fri Jun 20, 2008 5:27 am
Location: Toulouse - France

plants, flowers and rendertime ?

Post by mk »

Hi guys,

I would like to know if I add plants ( leafs) to my scene. Will my render take huge time to render than without plants ?
What's the best technique to save rendertime ?

Is Kray able to handle tiny polygons, and bypass intense computing on this kind of small polygons ?


thanks
darickster
Posts: 64
Joined: Wed Nov 28, 2007 10:39 pm
Location: NL

Post by darickster »

No, kray can handle plants very well, still speedy..

http://www.kraytracing.com/wiki/index.p ... ay_Shaders

'control FG rays' in kray shader will let you specify how much final gather rays are used per surface, try not to use translucency or your rendertimes will go through the roof, use instancing when possible. Not sure what you mean by small polygons, spatial tolerance handles the amount of detail in a cached render. Try to avoid fullframe antialiasing.

cheers

ric
mk
Posts: 28
Joined: Fri Jun 20, 2008 5:27 am
Location: Toulouse - France

Post by mk »

Nice advice about the shader.
about small polygons, I am talking about Plants(some plants have small leafs ) I tought it may take a lot of time to calculate GI.

But what do mean by 'avoid full antialiasing'. What is your setup for aliasing?

Thank you, it was very helpfull
mk
jure
Posts: 2142
Joined: Thu Jun 02, 2005 6:53 pm

Post by jure »

I use KraySurfaceOptions shader on my plants, I unceck caching and leave FG settings at default... Renders nice and pretty quick too.
- Jure
darickster
Posts: 64
Joined: Wed Nov 28, 2007 10:39 pm
Location: NL

Post by darickster »

I meant FSAA, although for animation it is still an option (and when using DOF)

rendertimes can be hugely influenced by the settings in the sampling tab. A good staring point would be the tip Pavlov gave, to set it to custom and enter 0.1 in every slot and 1 if 0.1 isnt accepted (thats for stills). Do some experiments with that. I can only give advice on image rendering, as i dont do animation a lot.

Just look how much is marked for antialiasing during render, i personally like a bit of grain in my images i dont want every pixel to be smoothed out, especially not on textures.

Kray works miracles for us, at least now 3d plants become an option..


Jure: when are the presets being updated? :wink:

cheers

ric
jure
Posts: 2142
Joined: Thu Jun 02, 2005 6:53 pm

Post by jure »

darickster wrote:
Jure: when are the presets being updated? :wink:

cheers

ric
Was starting working on them just recently but I had to put it off because of some other things... Hopefuly i can make them till next OB though. Suggestions are always welcome though.
- Jure
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