Grass model things on custom textures

[LightningX151]

How can i make my custom grass texture to have these grass model things:
[img_thumb]http://img15.imageshack.us/img15/5276/thisna.jpg[/img_thumb]

[Firegod522]

Those are detail sprites. Take a look at this.

[url]http://developer.valvesoftware.com/wiki/Detail_props[/url]

[LightningX151]

[QUOTE=Firegod522;20047051]Those are detail sprites. Take a look at this.

[url]http://developer.valvesoftware.com/wiki/Detail_props[/url][/QUOTE]

Thanks !