Creating and rendering realistic grass

[Isdrasil]

Is there someone who could help me or give some tips? I have some projects for an architect/design company and I want to have realistic grass in a scene of a small street/area.

Everytime this is buggin me again! I used hair&fur, but it is very heavy and i cant get the result i need. now I'm trying to scatter mrProxy's from a 0,5 x 0,5 mtr across the planes. but when rendering it stops at 5,7% of GI. "running out of memory" it says. grass-o-matic is also in the list of things-to-do. but the program also creates a lot of polys.

Also without the grass my scene is already 6.000.000 polys and I have yet to add the trees and bushes!
All together will go to approx 15-20 million polys!

So who can help me out??? The time is slowly ticking away, so I dont have much time left for experimenting...

edit: I'm using 3ds max 2010 and mental ray

[Isdrasil]

This is somewhat the scene I have to adjust (it will be much more open and thus more things to render)



I've created grass before with displacement but somehow it doesnt work in my scene now. Maybe because of an other object (the walkways) that uses displacement???

[tamagochy]

use hair and fur and convert to geometry around camera
or use scater

[Isdrasil]

ok thx! I'll give it a try and I'll keep you posted! (Hope this works!)

[Isdrasil]

Ok, I fiddled around with the hair&fur modifier and came to this result! this is just a plane 1m x 1m with 5000 hairs. for a good grass color i used a map on the tip and root color with the color adjusting green and brownish. for render speed less segments and specular. Also for some better placing and cover from the groundplane I adjusted the Multistrand params.

As you see the standard "tall grass" preset needs a lot of adjusting! I did this on my crappy laptop, so let's see what happens if I cover 50m2 with grass on my workstation.

I'll keep you posted!

[tamagochy]

use geometry near camera, in meddle distance use hair and fur with low count as u can for better look and far distance use a displace or bitmap ))
or u can render passes with grass depending from distance : near, meddle, far distance and compose it

[Isdrasil]

well, i tried it all but now i have i breakthrough! I've integrated Vue in my scene! speeds up my renders and uses less RAM. now rendering a scene in 15 minutes what used to be 10 hours!!!

does somebody have a tutorial about Vue in 3ds max???

[Dyablo213619]

you can also render it then just add ot with photoshop, If its a still Image its pretty easy to just add it in with Photoshop. And it saves you alot of headaches and time!

[prince tausif]

i used a map on the tip and root color with the color adjusting green and brownish. for render speed less segments and specular. Also for some better placing and cover from the groundplane I adjusted the Multistrand params.

[ronel]

since you are using mental ray...use mrProxy on the grass

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