Grass does not show up in the visualization

[Gleb1]

Hello. I have this problem: I use a special 3D grass cover, but on the visualization it looks flat and not volumetric.
How can I fix it?

[Barry Kelly]

Is the 'Grass' option turned on in the photorender settings?

Most of the pre-set scenes will probably have this turned off.

Barry.

[Lingwisyer]

Do note that turning on grass will murder your render times...

[Erwin Edel]

You might want to only use the 3D grass up close to the camera.

Even a simple grass texture on a huge bit of terrain increases rendering times dramatically.