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This material uses two Layers, the top Layer has a Layer opacity mask set to use UV channel 1 to give some variation in color over the grass surface. See the Grass page in the documentation section for more info. 

 


Grass typeImageParameters


Wild Grass

The randomness of the natural grass is achieved
by using high Variation percentages for Length,
Angle and Bend.


  • Type: Flat
  • Points per Blade: 4-10
  • Density: 3000
  • Length: 7.5 cm
  • Length Var: 60%
  • Rooth Width: 6 mm
  • Tip Width: 2.5 mm
  • Initial Angle: 60º
  • Initial Angle Var: 50%
  • Start Bend: 40%
  • Start Bend Var: 25%
  • Bend Radius: 5 cm
  • Bend Radius Var: 50%
  • Bend Angle: 80º
  • Bend Angle Var: 50%


Golf Green

To get the characteristic golf green look
(very dense, short, but also chaotic), a strong and
homogeneous Cut Off is important and a large
Initial Angle Variation setting.


On such a short grass, the Flat primitive works
fine and renders faster.
 
For a less perfect golf green, set Cut Off to 100% (which
means the full length of the blades will be rendered) and
increase the Length Variation.

 



  • Type: Flat
  • Points per Blade: 4-6
  • Density: 150000
  • Length: 1.5 cm
  • Length Var: 20%
  • Rooth Width: 2 mm
  • Tip Width: .5 mm
  • Initial Angle: 70º
  • Initial Angle Var: 50%
  • Start Bend: 40%
  • Start Bend Var: 25%
  • Bend Radius: 1 cm
  • Bend Radius Var: 25%
  • Bend Angle: 90º
  • Bend Angle Var: 25%
  • Cut Off: 65%
  • Cut Off Var: 15%
 


Tall big grass

Even for large bendy blades of grass, with enough
Points per Blade, the Flat primitive looks perfectly
smooth, and renders faster than the Curve primitive.

The large height of this grass needs a larger Bend Radius
to make the blades bend slowly over a large radius.
  • Type: Flat
  • Points per Blade: 10-16
  • Density: 2500
  • Length: 40 cm
  • Length Var: 30%
  • Rooth Width: 11 mm
  • Tip Width: 3 mm
  • Initial Angle: 80º
  • Initial Angle Var: 25%
  • Start Bend: 30%
  • Start Bend Var: 25%
  • Bend Radius: 25 cm
  • Bend Radius Var: 25%
  • Bend Angle: 80º
  • Bend Angle Var: 25%


Fast Generic Grass for housing projects

On projects where the grass is not the focus,
you can save a lot of Ram and render time by
optimizing the grass distribution with the Level of
Detail settings, depending on the size of your scene
and what the camera sees.

  • Type: Flat
  • Points per Blade: 4-8
  • Density: 4500
  • Length: 5-10 cm
  • Length Var: 50%
  • Rooth Width:5 mm
  • Tip Width: 2 mm
  • Initial Angle: 80º
  • Initial Angle Var: 40%
  • Start Bend: 30%
  • Start Bend Var: 50%
  • Bend Radius: 10 cm
  • Bend Radius Var: 30%
  • Bend Angle: 80º
  • Bend Angle Var: 40%

 

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