And the image pack if you want to convert it to PSP, Gimp, or some other program, is here! If you do, upload it, credit and link to these brushes, and tell me so I can link it from here! A lot of people have downloaded these and still are, so I'd like to keep an index of what programs we've made it compatable for right here!
Here is a set of grass brushes. As it says on the image, NO CREDIT NECESSARY.
Because, see, today I set out on a mission--grass brushes. You know, a few lines each that didn't require credit. EVERYONE WANTS CREDIT. (sobs) Why? No bloody clue, this only took me a few minutes...
Anyway, fav if you download/use. That's all I want! Really! I don't care about credit, I don't care if you show me what you did or not. They're small, but go ahead, use them commercially if you really want, use them off DA, use them in your webcomic (I use them occasionally in mine, Between Places... it's actually why I made them...), or whatever. I don't care. I encourage it! If you use them on DeviantART, however, I will favorite whatever you've done with them if you show me.
Don't repost and claim as your own.
Depends on what you mean by 'work for me'. They should work in any version of Photoshop as they are not dependent on any fun features, and the image pack will allow you to install it in any program with a bit more effort. However, they may not 'work for you' in that, as I made them at 18 with my first tablet and an ancient Photoshop and uninspired lack of talent, they are not exceptionally GOOD brushes. 12 years of perspective has led me to personally find these brushes to be useless and uninspired choices compared to my current techniques, but, they are free for anyone, so they still get occasional traffic. I have posted one of the grass brushes I have recently made but it's for Clip Studio Paint, the program I now use. But to be honest with you based on my current workflow I wouldn't choose a grass brush, I would choose a full seamless grass texture fill and draw in any individual grass bits I need to stand out or overlap without using a brush, or only using a brush to gain a paint-impersonating texture to my stroke. This technique may work better for your style of 3D + photo manipulation as well.
This old brush set, I would recommend it to be used for painter rather than photo manipulators because of the flat color, it will stand out as being a brush over a photo unless you go to some effort to add some shadow and lighting. The CSP brush I posted much more recently has built in lineart and shading, making it more of a complete grass stamp, whereas this brush set gives a quick texture for a digital painter who isn't choosing a photographic texture, as you would be. So, I suspect it won't work well for your creations, but feel free to use it however you'd like as of course it is a free tool for all. Best!