Image courtesy of Marcin Jastrz?bsk
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As this primitive is made of straight segments of a cone, the number of Points per Blade define the number of straight cone segments in each blade. You may determine the number of segments you need depending on how it looks from your camera view. The more segments, the smoother the cylindrical blades will look, but you will also increase the demands of RAM usage that is needed to render your scene.
Cylinder primitive using 16 points per blade
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Several MaxwellGrass modifiers being applied on the same ground geometry (screenshot from Studio)
Two independent grass modifiers applied together to the same ground geometry (hidden here) to create a more natural look by generating a mix of two different grass species
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Grow Towards World-Y NEW IN MAXWELL 3.2
This value percentage allows you to define if you want the main growing direction of the blades to will grow completely vertical towards the world-Y axis (when set to 100%) like the natural phototropism in plants no matter the ground surface orientation, to grow according the custom Initial Angle defined below ignoring the world-Y direction perpendicular to the "ground" surface (when set to 0%) or a combination of those two criteria. any value in between. The rest of the angle parameters will be applied after this main growing parameter; so the Initial Angle will mean a deviation from this main growing direction, as well as the Initial Angle Variation.
Grow Towards World-Y = 0% Grow towards World-Y = 100% Grow Towards World-Y = 50%
Initial Angle
The initial angle at which the blades will grow. Default is 80 60 degrees. Values range from 0 to 90 degrees.
Initial Angle variationVariation
Randomize the growth angle by a percentage of the initial angle variation. For example if the initial angle is set to 70 degrees and variation is 10%, the angle will be randomized between 63 and 77 degrees.
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| Tip |
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For a tutorial on creating an angle map in Photoshop, see the Grass Tutorials page in the Tutorials section. Two Photoshop actions are also available on that page to automatically create an angle map from a black & white drawing. |
Bend parameters
These parameters control the bending of each blade, at what length it starts bending, the angle it bends, and the bending radius.
Bend parameters: Start, Angle and Radius
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The Cut Off feature allows you to cut the grass as if it were mowed, producing and abrupt cut.
Different values for Cut Off
Cut Off
The length of the blade (in percentage) at which the blade will be cut. The blade grows as usual until this point, after which it will be cut. A value of 100% will let the blade to grow up to its nominal length (no cut at all), while a value of 0% will cut the blade at its very birth (at zero length).
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Adjusting the grass display settings to display just 10% of the generated fibers in the viewport (screenshot from Studio)