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Distribution mode – Allows selecting between different distribution modes.

Random – Scatters randomly on all mesh and closed spline distribution objects.
UV – Uses the distribution objects' UVW mapping to scatter the instances in regular patterns.

Count – Defines an exact number of instances to scatter overall. When the Per square option is enabled, scatters instances per area, defined by density. The number is always limited by the Config Max. limit option.

Per square – When enabled, the number of instances to scatter is defined by density (Count per square having the given edge length). The number of instances is always limited by the Config Max. limit option. The specified value is the edge length of a square, which defines an area for computing the scatter density.

Distribution – Specifies a texture map or shader used for instance distribution. White areas of the texture are treated as maximum density, and black areas are treated as areas with no instances.

Pattern – Allows to select between different distribution patterns.

Grid – Rectangular grid.
RunningGrid – Rectangular grid with every other row offset by half of the grid spacing.
HexagonalGrid – Hexagonal point arrangement.

Use planar mapping – When enabled, simple planar UVW mapping is applied to the distribution object and used instead of its existing UVW channel.

Spacing U – Scales the pattern in the U axis - 100% spacing makes the pattern occupy the whole 0-1 UV space; with 50% spacing, the pattern gets repeated 2 times in U.

Spacing V – Scales the pattern in the V axis - 100% spacing makes the pattern occupy the whole 0-1 UV space; with 50% spacing, the pattern gets repeated 2 times in V.

Jitter U – Randomly jitters each instance in the U axis, with 0% being entirely deterministic placement (no jitter) and 100% being entirely random placement.

Jitter V – Randomly jitters each instance in the V axis, with 0% being entirely deterministic placement (no jitter) and 100% being entirely random placement.

Offset U – Offsets the pattern in the U axis. Each 100% added or subtracted moves the pattern by one entire repetition - which means that, e.g., 0% and 100% offsets yield the same result.

Offset V – Offsets the pattern in the V axis. Each 100% added or subtracted moves the pattern by one entire repetition - which means that, e.g., 0% and 100% offsets yield the same result.

Lock V – Locks the V coordinate for Spacing, Jitter, and Offset to the same value as the U coordinate.

SLOPE

Enabled – Toggles the slope parameter on and off. Slope allows scattered geometry to be removed based on the angle of the underlying geometry. If an area is outside the range defined in this rollout, geometry is removed from it. This is great for realistically simulating steep mountains, as there is no greenery on the steepest slopes.

Up mode – Allows selecting between different modes for the up axis. See the Slope Up mode example.

Local – The up vector of each individual distribute-on object is used to define the slope limitation.
World – The world Y-axis up vector is used for all distribute-on objects to define the slope limitation.

From/To – These values set the range of angles, measured in degrees, between either the Local or the World up vector and the surface normal. Determines how steep the surface can be before instances are filtered out. Instances scattered outside of this range are erased. See the Slope example.

ALTITUDE

Enabled – Toggles the altitude parameter on and off. Altitude defines a height range (in cm) for the scattered geometry to distribute on. Any geometry outside the range is filtered out. See the example for more.

Coord. space – Determines whether Local or World coordinate space is used for the height range.

From/To – Defines the minimum and maximum height of the range. Any geometry below or above this is filtered out. 

Falloff – Smooths out the altitude cutoff, allowing for a gradual fade-out. Use the curve control to define the transition. For further controls, open the menu. Additional points can be added by holding Ctrl and left-clicking anywhere on the curve. See the example or more.

TRANSLATION

From/To – Specifies the translation range for the X, Y, and Z axes, in world units.

Texture – Specifies the texture map or shader to use for translation.

Stepping – When nonzero, switches the random translation from a continuous to a discrete one, with steps specified by this parameter value. The From and To values are still used as bounds. This effect is used only for the selected axes.

Step in X, Y, Z – Defines the axes affected by the Stepping value.

ROTATION

From/To – Specifies the rotation range for the X, Y, and Z axes, in degrees.

Texture – Specifies the texture map or shader to use for rotation.

Stepping – When nonzero, switches the random rotation from a continuous to a discrete one, with steps specified by this parameter value. The From and To values are still used as bounds. This effect is used only for the selected axes.

Step in X, Y, Z – Defines the axes affected by the Stepping value.

Normal vs. Y – Defines the instanced object's orientation, using the base object's normals. A value of 1 means instanced objects remain vertical, regardless of the base object's normals direction, while a value of 0 means instanced objects are oriented according to the base object's normals.

Preserve model rotation – When enabled, instances preserve the original rotation of their models (instanced objects). Otherwise, the original rotation is ignored.

LOOK AT

Enabled – Turns the Look at option on. Look at rotates the scattered geometry so that the defined Look axis is always pointing toward the Target object. Even if a Target object is selected, the scatter geometry does not follow it unless this box is clicked. See the Look At example for more.

Target object – Determines the object that the scatter geometry uses as a guide. Drag and drop onto the field or use the eyedropper tool.

Look axis – Determines which axis of the scattered geometry looks at the Target object.

Horizontal – Binds the scattered geometry to the surface of the Distribute On object, only rotating around the axis which is perpendicular to the surface when following the Target object.

Falloff distance – Determines the distance around the Target object that affects the scattered geometry. Geometry outside of this perimeter does not look at the target. See the Falloff distance example for more.

SCALE

From/To – Specifies the scale range for the X, Y, and Z axes, in percent.

Texture – Specifies the texture map or shader to use for scaling.

Stepping – When nonzero, switches the random scaling from a continuous to a discrete one, with steps specified by this parameter value. The From and To values are still used as bounds. This effect is used only for the selected axes.

Step in X, Y, Z – Allows defining the axes affected by the Stepping value.

Uniform – When enabled, instances get scaled in all axes using the values for the X-axis. When disabled, each axis uses independent values.

Preserve model scale – When enabled, instances preserve the original scale of their models (instanced objects). Otherwise, the original scale is ignored.