are you a hair department user?

[Gromhelm]

hi,

1. try to use textures/shaders for the grass far away

2. correct the normals of all polygons where the grass grow

3. use only 1 polygon for every grassstangle and make them thinner

4. use a texture with a little bit transparency

hope this will help you...

[squidinc]

the file is huge because of all that geometry, have you tried using textures for the grass instead?

[miloszwl]

although i haven't been using hair department for a long time i have no problems with creating grass in it.

i think You problem might be connected with bad use of hypernurbs. and about size - get used to it, grass is saved as polgynos so it takes some space :rolleyes:

check my attached file for a sample of grass i use for my projects

[tcastudios]

As Q´s about grass and making furs and/or hair comes up frequently and have to strongly recommed Paul´s SolidSplinePro.
You´ll get renders in seconds instead of minutes or even hours.

This is a quick example using Hairdept/SSP.
It took about 20 sec to render incl a sunlight with hard shadow.

http://w1.185.telia.com/~u18502924/CinemaScenes/SolidGrass.jpg

To Paul´s Plugins (http://www.tools4d.com/)

Cheers
Lennart

[miloszwl]

sure but You have to pay for it :rolleyes:

[tcastudios]

Yup. But it is the best time saver, all categories.
You´ll get a superslick viewport (no polys) and rocketfast renderings.
If I had to choose only one plugin, this is it.

Lennart

[anibalin]

thank you very much for all your replies mates| the solidsplinepro looks interesting, (having quick renders its a huge asset).

[abstrax]

Hi,

are you using release 8.5? Then I have something for you:

http://home.arcor.de/marcus.spranger/solutions/Gras2.jpg
(http://home.arcor.de/marcus.spranger/solutions/Grass.c4d (http://home.arcor.de/marcus.spranger/solutions/Gras.c4d) - 259 kb)

http://home.arcor.de/marcus.spranger/solutions/GrasBerg.jpg
(http://home.arcor.de/marcus.spranger/solutions/GrasBerg.c4d - 228 kb)

What's that? Well, what you see here is a mulit-layer material (made out of several copies of an object). There is no real grass geometry.

How can you apply it? Download the following file:
http://home.arcor.de/marcus.spranger/solutions/GrassMaterial.c4d (http://home.arcor.de/marcus.spranger/solutions/GrasMaterial.c4d)

and add it to your document.

Duplicate the surface, where the grass should grow (e.g. 8+1 times or 12+1 times). Put the duplicates under the null-object "Grass". The original surfac should be hidden. There are 4 grass materials (Grass1 to Grass4) and one ground material for the bottom layer. Those materials have to be distributed top to bottom over the duplicates (see Grass.c4d). The last layer should get the "Ground" material.

The null-object "Grass" has several user data fields. With the first four ones you can control the distribution of the duplicate layers and their textures. With the other ones you can control the color, noise "hardness" and noise scale and noise detail reduction.

The grass is nothing else than stretched noise, rendered "volumetric" by duplicating the layers.

If there are more questions, feel free to ask.

Ciao,
Marcus

[anibalin]

another interesting solution | good idea indeed. gonna give it a shot too :) | thanks for sharing.

[JoelOtron]

I posted this on another board for almost the same question. This is just a series of spheres with fresnel on the transparency channel. COuld use some tweaking, but not a terrible start:

http://www.betatronstudios.com/test/grass2.mov

Here are project shots:

http://www.betatronstudios.com/test/editor_spheres.jpg

http://www.betatronstudios.com/test/settings.jpg

HTH

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