Controls the shape of the generated point clouds. Use Sphere if you need the points at the center of the explosion or Line when you need points in the rising mushroom cloud.

The starting size of the burst in which points will be scattered. A size of 1 means the diameter of the burst is roughly 1 unit.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

This vector defines the normal direction to the horizontal plane; azimuth angles are measured within this plane. When Shape is set to Sphere, this vector also corresponds to spread angle of of 0. When using the Line Shape, the point cloud will align with this direction.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Controls random scattering of points. Change this value to obtain different point clouds.

The number of points to generate per input point. Increase this parameter to scatter more points.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

When Shape is set to Sphere, it sets the minimum angle the scattered points can spread out from the burst’s direction vector (as set by Direction). Set Guide Display to Distribution Guide to help visualize the given angle.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

When Shape is set to Sphere, it sets the angle the scattered points can spread from Spread Start Angle towards the opposite of burst direction (as set by Direction). Set this to 180 degrees on a node with default settings to make the points scattered all around the input point. Set Guide Display to Distribution Guide to help visualize the given angle.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

When Shape is set to Line, the points are scattered around a line representing the burst direction (as set by Direction). This parameter sets how far away this line should be created from it’s input point in world units.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

When Shape is set to Line, the trails are generated around a line representing the burst direction (as set by Direction). This parameter sets the length of the line in world units.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Azimuth controls how points are scattered around the burst direction (as set by Direction), therefore you can use it to generate points only on a desired side of the burst. By default, the value of 0 will create points on the +X axis and they rotated around the burst direction vector counter-clockwise as the value increases.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Azimuth controls how points are scattered around the burst direction (as set by Direction), therefore you can use it to generate points only on a desired side of the burst. Increasing this value will spread out the points from the Azimuth Start Angle around the burst direction both clock wise and counter-clockwise. A value of 360 means that the points will be created all around the burst direction.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Removes some of the scattered points based on a noise pattern. Use this to create more interesting scatter pattern. When this checkbox is turned on, Points per Point might need to be increased to compensate for the removed points.

Controls base feature size of the generated noise. The value applies to each axis.

The offset along the Y-axis. Change the value of the Offset if the current noise pattern is undesirable.

The scale increment between iterations of fractal noise. The higher the value the larger the “jaggedness” added to the output.

When Shape is set to Line, controls the radius the points can be scattered along the length of the line. When the ramp’s value is 1, the radius is equal to Initial Size.

Sets the length (magnitude) of the velocity vector for the scattered points.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Controls “verticality” of the paths for points further away from the center, when Shape is set to Line. The spread angle refers to the angle between the burst’s direction (as set by Direction) and a path’s starting velocity vector. Therefore, a spread angle of 0 will result in a path that’s aimed in the burst’s direction, and a spread angle of 90 will result in a path that starts out perpendicular to the burst’s direction. In the common case of Direction pointing away from Gravity, values near 90 will produce paths that are shooting out horizontally at the top of the emission line. Use the +/- button to quickly randomize the value per trail. The spread angle for the starting point of a path is fully determined by its distance to the burst center along the direction. When this distance is at Line Start or its sum with Line Length, spread angle will be set to Bottom Spread Angle and Top Spread Angle, respectively. The spread angle is linearly interpolated for distances between them.

Controls “verticality” of the paths for points closer to the center, when Shape is set to Line. The spread angle refers to the angle between the burst’s direction (as set by Direction) and a path’s starting velocity vector. Therefore, a spread angle of 0 will result in a path that’s aimed in the burst’s direction, and a spread angle of 90 will result in a path that starts out perpendicular to the burst’s direction. In the common case of Direction pointing away from Gravity, values near 90 will produce paths that are shooting out horizontally at the bottom of the emission line. Use the +/- button to quickly randomize the value per trail. The spread angle for the starting point of a path is fully determined by its distance to the burst center along the direction. When this distance is at Line Start or its sum with Line Length, spread angle will be set to Bottom Spread Angle and Top Spread Angle, respectively. The spread angle is linearly interpolated for distances between them.

When this checkbox is turned on, it changes the direction of the point velocities based on a noise pattern. Use this to randomize and create more variation in the directions velocities face.

Sets the strength of the noise. Higher values will produce more varied point velocities.

Controls base feature size of the generated noise. The value applies to each axis.

The offset along the Y-axis. Change the value of the Offset if the current noise pattern is undesirable.

The scale increment between iterations of fractal noise. The higher the value the larger the “jaggedness” added to the output.

When this checkbox is turned on, it changes the length (magnitude) of the point velocities based on a noise pattern.

Sets how much the length of the velocity can be scaled down from it’s original length. The value of 1 means, that no velocities will be shorter than their original length.

Sets how much the length of the velocity can be scaled up from it’s original length. The value of 1 means, that no velocities will be longer than their original length.

Controls base feature size of the generated noise. The value applies to each axis.

The offset along the Y-axis. Change the value of the Offset if the current noise pattern is undesirable.

The scale increment between iterations of fractal noise. The higher the value the larger the “jaggedness” added to the output.

Limits the magnitude of velocity. Use it to clamp the minimum or the maximum speeds.

Limits the minimum speed.

Limits the maximum speed.

Sets an attribute on scattered points, indicating in which frame each point is triggered. This value sets startframe on the incoming points before the scattering, therefore all points created from the same input point will have the same start frame. Use Offset per Point to vary start frame per scattered point. Use the button to the right of this parameter to visualize start frames for scattered points; grey points haven’t triggered at the current frame, while red ones have.

Click the randomization button on the right side of this parameter to randomize the value per incoming element. This will create/select a corresponding attribute adjust node to give you greater control over the parameter’s value.

Sets the maximum allowed start frame offset extension for each point. You need to turn on this checkbox to vary start frames for the scattered points generated from the same input point. This will set the offset value as unit of frames, when you only need couple of frames as offset. However, if you need an offset longer than a few seconds, As Time Duration might prove a better alternative. Random Distribution will pick startframe values between Start Frame and Start Frame + Extension per Point, which can be used when Shape is set to Sphere. Use Along Direction when Shape is set to Line to start the scattered points gradually along the burst’s direction (as set by Direction).

When Shape is set to Line, this ramp allows you to start the scattered points that are closer to the burst center first and gradually releasing the points as they are further away. The left side of the ramp refers to points that are the closest to the burst center, while the right side refers to points that are the furthest. When the ramp’s value is set to 0, it will set startframe to the value given by Start Frame. Where the ramp’s value is 1, it will set startframe to Start Frame + Offset per Point.

Copies custom created point attributes from the input points to the generated points. This will ignore copying all internally used attributes.

Only copy attributes whose names match this pattern. The default * copies all attributes. This will ignore copying all internally used attributes.

The point attribute storing the index number of the generated scatter point.

The attribute that can cause noise patterns to stick to each point. Generate noise pattern using this attribute to make sure the noise stays consistent on each point over time.

The point attribute storing the position of each scattered point along the burst’s direction (as set by Direction), when Shape is set to Line.

This will output the attribute used by Randomization by parameter. By default it will output an integer type point attribute trailid.