Artifical Turf?

[tlehnhaeuser]

I am trying to figure out which shader along with the settings that would give mne the best artifical turf "texture".

I am lloking to replicate the grass in Yankee Stadium as shown in picture below

 

 

The image below shows my attempt using a Cellnoise which brings up a point. The "sclae" of the noise is differnt on each surface even though applied at part level. Is there a way to make it uniform?

 

 

 

 

thanks

Tom

 

[Guest John Wright]

Tom

 

2 solutions

 

1. Create a 3D curve about 50mm long, sweep a section along it. Lean it over about 30 degrees to the vertical, then repeat with the triball a few million times

 

2. Use th Image setting in the shader - and apply an image to the surface - I have seen lots of turf images on the web.

 

The latter may be quicker! - however at the moment the shader doesn't save the image path nor will it add it to a new smartpaint catalog entry. Using the image is very much like life used to be! just nicer.

 

John

[Bryan Cargill]

The material appearance is the combination of the shader settings and the coordinate mapping. The coordinate mapping will change the scaling and orientation. UV based coords will seem to have a different scale and orientation for every face. XYZ based coords will not. The local coordinates are probably what you want-- as opposed to natural UV or cylindrical, spherical, etc...

You can control the coordinate mapping at the bottom of the shader dialog.

[tlehnhaeuser]

The material appearance is the combination of the shader settings and the coordinate mapping.  The coordinate mapping will change the scaling and orientation.  UV based coords will seem to have a different scale and orientation for every face.  XYZ based coords will not.  The local coordinates are probably what you want-- as opposed to natural UV or cylindrical, spherical, etc...

You can control the coordinate mapping at the bottom of the shader dialog.

19821[/snapback]

 

Thanks Bryan

I'll look into it.

Tom

[Guest EricFoy]

Tom:

 

Are you still looking for some grass? Let me know, and I'll package up the image and bump maps that I used here. I think it looks amazingly stadium-like; quite by accident, too.

[dhovatter]

How often do you need to mow that.

Looks very real.

Dallas

 

[tlehnhaeuser]

Yes Eric,

I would certainly love to have it for my library even the project at hand is complete.

Thanks

Tom

 

[Guest EricFoy]

Okay, Here are some grass images I got from a free source on the web (can't remember where right now). The one I have called grass5 came with a bump map, grass2 did not. To be honest, I haven't really psyched out the effectiveness of the bump map, but there it is. Let me know if you run across any outstanding effect with it.

 

The shots I posted above were done using grass2, which I like a lot better than grass5. I don't think grass5 will give you that nice stadium effect, which is really just a result of grass2's non-uniform tonality. Works kinda nice, I think.

 

These are some renderings with each grass file, both using the same bump map.

grass.zip