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Grass - After Effects?
show user profile  cbflex
Does anyone know of any plugins or ways of maybe creating grass in After Effects?
So lets say I create a scene in 3ds max, render it out. Maybe there are rolling hills, or a mountain, or just endless plains, and I want to create grass on this land. And lets say in 3ds max, the camera moves forward and about.
Is there way I can some how get After Effects to just render the hair on whereever it should appear, with the camera movement and lighting it should have?

I know this would not work well with reflections, so that if in 3ds max I put a mirror in front of some blades of grass, there would definately not be reflection of them, which sucks.
Any advice?

I'm asking this because i'm looking for ways to render long long endless fields of grass and wheat, in a short amount of time. I'm not talking like 5 seconds, but hopefully 60 minutes or less per frame in 1280X720 using Mental Ray. Willing to convert to Vray if I must.

I'm running this on 32 bit, 4gb ram, dual core 3.33 ghz.(yea I do need an upgrade as well)

Anyways, any ideas on doing this in video rather than 3d?
read 545 times
11/3/2011 5:50:49 PM (last edit: 11/3/2011 5:50:49 PM)
show user profile  Dr. Jim
There isnt.
AE is only a 2D app that can position 2D planes in 3-space.

so ae cannot 'cover' a 'render' of geometry with grass.....especially with regards to cam movement and such.

read 542 times
11/3/2011 5:53:23 PM (last edit: 11/3/2011 5:53:23 PM)
show user profile  killerbee2

It depends on the scene, so to a certain extend you can. If you have the tools & knowledge and know the restraints. render out a normal, shadow and uv-pass of your scene so you can retexture & relight your grass texture.

2. In ae comp a grass texture

3. experimental but might work : export your terrain to obj and use it in trapcode form to generate grass sprites. Export lights and camera from max to ae. Use a Z-buffer in form to mask out rendered geometry

read 523 times
11/3/2011 9:07:54 PM (last edit: 11/3/2011 9:08:45 PM)
show user profile  Dr. Jim are high again.
I think he wants to render faster,....not 100X longer.....
read 520 times
11/3/2011 9:17:27 PM (last edit: 11/3/2011 9:17:27 PM)
show user profile  killerbee2
he just asked if it's possible so my answer is not irrelevant.

read 517 times
11/3/2011 9:19:04 PM (last edit: 11/3/2011 9:19:04 PM)
show user profile  cbflex
Ok, so here's a new question. I've come to the conclusion that I'm just going to have to deal with my slow machine that renders all the hairs i want that slow.
Here's my outdated system specs.

Windows xp 32bit
dual core 3.33ghz
4gb ddr2
geforce gtx 260 812mb

Right now I'm trying to render a scene with like 40,000-80,000 hairs spread out like a wheat field. To put it simply, my frames just dont render. They take over a day to get even half a frame done/
And this is with my hairs at like 1-2segments using mental ray. I know I'm doing everything right, my system just is outdated.

I'm thinking of moving to this kinda system. Let me know your thoughts.

Windows 7 64bit
quad core 3ghz (unless you can recommend something better. I know AMD has 8 cores, but it's made for video games. Thoughts?)
16 gb ddr3 ram
and a $350-400 workstation graphics card. (Is this a good price? I don't think I can spend like $2000 or more on a workstation graphics card)
read 491 times
11/4/2011 9:01:33 PM (last edit: 11/4/2011 9:01:33 PM)
show user profile  Dr. Jim
Take a look at this.

I might suggest you go this route if you need to. Not sure if its part 1 or 2,....but using the Vrayproxies (and Vray ofcourse) makes all the diff.

Yes,.....your machine is slow. But this technique works quite quickly....

Recomment somthing better? You give us no budget?
IMHO a single quad is not worth it,....will be outdated soooo quick. Dual quad at minimum,....or maybe a singe hex core. Or better yet a dual hex core.

'workstation' gfx card? Most of us can do very well with GTX nvidia series,.....maybe a GTX580..... Quadro's are cool.....but I hear alot the power is in the drivers...and the performance is not proportionate at all to the huge price increase.
Hardware gurus will chime in shortly......
read 486 times
11/4/2011 9:12:37 PM (last edit: 11/4/2011 9:12:37 PM)
show user profile  cbflex
Thanks for the quick response.

Can you maybe explain more on using Vrayproxies. I'm actually converting the scene to Vray but I'm not familiar with the technique your mentioning. I know vray proxies are the same idea as mental ray proxies.
Are you saying that In another max file I create a huge plane with vray fur attached to it with 80,000 hairs or whatever, and then in the original 3ds max scene, I import that in as an xreffed file?
If this is wrong, can you explain or point me in the right direction of a tutorial?

I don't want to spend more than $500 on a CPU, and I feel like even that will expire soon. Wouldn't it be better to just get an AMD processor with 8 cores for the same price or greater than an Intel?

So your saying that the tremendous price difference in video cards to workstation cards is not proportional to the performance increase.
read 478 times
11/4/2011 9:42:33 PM (last edit: 11/4/2011 9:42:33 PM)
show user profile  Dr. Jim
ack....sorry dude,...I meant to post a link:

THere is a part 1 and a part 2 linked here.

This technique is very good.

CPU's? I dont know mate.....just seems like the 4 cores are on their last legs....who knows. I dont think throwing $500 is gonna help you much.

And correct a 2K Quadro aint gonna be much better than a $500 GTX.....theres alot of info on this,...depends on what you are doing,..etc.
I am not a hardware guru.,.....others will hopefully chime in.
read 422 times
11/8/2011 3:41:57 PM (last edit: 11/8/2011 3:41:57 PM)
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