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AutoGrass 是一款运行在 3dsMax 并且结合 V-Ray 渲染器让你一键解决生成逼真草地的插件，通过对多核处理器和内存的优化，AutoGrass 能以最高效又经济的方式生成 3D 形式的草地场景。同时插件还内置了 11 种草地预置，使用时只需要选择适合自己的预置就能制作出满意的草地效果，是个值得拥有的经典插件。
Autograss is your one-click grass solution for V-Ray

Select your object, click Autograss, and you're done. You've got photorealistic grass that renders in V-Ray for 3ds Max.

Advanced multi-threaded memory management

Autograss uses Happy Digital's advanced memory management system. That means Autograss uses only a fixed amount of RAM no matter how much grass is in the scene, whether it's a one-acre lawn or an entire golf course. No crashes, no nonsense. And it's fully multi-threaded, so all your cores are driven to their full potential.

Realistic grass presets

Autograss includes eleven preset grass types covering the most commonly used grasses. You don't need to model any grass. The scientists at Happy Digital studied radiometrically calibrated photographs to ensure the grass presets have true-to-life shape and color when used with V-Ray's physical cameras and sun / sky system, from sunrise to sunset. In addition to these presets, Autograss provides you with mapping and variation to produce special effects like worn-out trails and lawnmower paths.

AutoGrass安装方法：

1. Run redirect_activation.cmd with *admin* privileges
   or add the following line to your hosts file:
   127.0.0.1               www.happy-digital.com

2. Start keygen.exe. Leave it open while installing Autograss.
3. When prompted for order number and e-mail, enter what you
   want and press next. A license will be automatically sent
   by the keygen.