Parent Settings

Many settings can be affected by its parent layer's settings. Depending upon the setting the layer's setting is either added to or multiplied by its parent's setting. If by default the value is 0 on the Group layer then it will be added to its children's settings (Seed, Offset, Distance Min). If the value is 1 by default on the Group layer then it will multiply its children's settings (Scale, Viewport Amount, Preview Radius). Rotation should be thought of as additive.

Settings

Distance Mininimum

How close each object can be. See the Distance Min setting of the Distribute Points on Faces node in Blender's Manual

Only visible if Use Asset Radius is disabled

Use Asset Radius

Use the largest radius of each of the Layer Objects as the Distance Minimum setting ensuring the minimal amount of overlap between Layer objects in this layer

Asset Radius Offset

Vary the minimum distance outside of each object's radius.

Only visible if Use Asset Radius is enabled

Render Target (Non-Group Only)

Maximum number of instances. A Distance Minimum greater than 0 may produced significantly less than the Render Target

Use Density

Use a target density setting instead of target amount ie how many per Blender unit instead of how many total. Useful for grass or forests

Density Target

The amount per Blender unit, though this is impacted by Masks and Distance Minimum

Scatter Amount (Group Only)

Vary the amount of scattered assets per child layer

Seed (Location)

Randomize the location of each object

Viewport Target (Non-Group Only)

Maximum target number of instances allowed in the viewport. Will render full amount.

Viewport Amount

Percentage of particles to display in viewport

Preview Radius

Set the radius of each particle sphere for when displaying the spheres in the viewport

Normal Blur Amount

Smooth out the normals in order to get less chaotic normal rotations. This will effect any settings that deal with normals.

Offset

Offset (Minimum)

How much to offset each asset. This value acts as the minimum offset value if randomize is greater than 0.

Along Normal

Amount the Offset value should follow the underlying face's normal direction versus the up direction.  This is effected by the Normal Blur Amount.

Max Offset (Randomize)

The maximum value relative to the Offset value an instance can be offset.

Randomize (Amount)

Amount to randomly offset assets

Seed (Randomize)

Changes the randomize amount for each asset's offset

Scale

Scale

Amount to scale each asset

Use World

Keep asset scale the same regardless of object scale

Minimum (Randomizing)

The minimum size to randomly scale to relative to the Scale value

Maximum (Randomizing)

The maximum size to randomly scale to relative to the Scale value

Randomize (Amount)

Amount to randomly resize assets

Seed (Randomize)

Changes the randomize amount for each asset's scale

Rotation

Rotation

Amount to rotate each asset. The Z axis value is the setting in the header of the Rotation dropdown. The X and Y axis values are inside the Rotation dropdown.

Normal Amount

Amount to align the assets to their face's normal. This is effected by the Normal Blur Amount.

Minimum (Randomize)

Minimum amount to randomize rotation

Maximum (Randomize)

Maximum amount to randomize rotationn

Randomize (Amount)

Amount to actually randomize. Randomization is relative to the Rotation value

Split Randomize Amount

Set the amount of randomization per axis

Seed (Randomize)

Changes the randomize amount for each asset

Snap To

Round each asset to the nearest multiple of the degree. Ex: 180° will snap assets to either 180° or 0/360°. Whichever is closest.

Child settings of anything greater than 0° will override its Parents' Snap To settings. There is no combining of the values.

Rotation Modifiers

See the Rotation Modifiers page.

Layer Objects

See the Layer Objects page or Scatter Object Materials page.