V4 - Spline Tools Function Library - Part 2

BPL-SDotSplineTools contains the functions needed to create the blueprints in this project. The functions can be used in any blueprint within a project were the library is present.

Part 2 covers Spline Segment and Spline Mesh nodes.

1. Placement Node - how many meshes will be placed on the spline (previous page)
2. Spline Segment - which part of the spline the mesh will be placed
3. Spline Mesh - how each of the mesh will be placed and with which material

• Rotate the entire spline by selecting the root of the blueprint
• The little squares represent the spline points. Click on them to move them around
• Use the 2 handles to rotate a spline point. Do not manually rotate the spline point itself
• Right click on the spline or spline point to add, modify or delete spline points

Blueprint Spline - Unreal Documentation

Total Spline Length

Always start with getting the total spline length from the Spline component then divide the total spline length if necessary.

Spline Segment A A

A - A will divide the segment into two equal sized halves.

Spline Segment A B

Divides the segment into two parts sized relative to the values set in A and B

Spline Segment A F

splits off a fixed segment at the end with the width set.

Spline Segment F A

splits off a fixed segment at the start with the width set.

Spline Segment A N

Adds N numbers of a mesh defined in Spline Mesh at the end of the segment. The remaining segment is provided in the output pin.

Spline Segment A N

Adds N numbers of a mesh defined in Spline Mesh at the start of the segment.

Spline Segment A B A

Divides the segment into a center segment with 2 equal sized segments on each size.

The size will be relative to the values entered for A and B.

Spline Segment A F A

Divides the segment into a fixed center segment with 2 equal sized segments on each size.

The size in the center will be fixed.

Spline Segment F A F

Splits off 2 fixed size segments on either end of the spline segment. Segment A will have the remaining size.

Spline Segment Repeater

Divides the segment into equal sized parts when combined with a For Each Loop

Scale to Fit adjusts the Segment Length to the closest value so the entire given spline segment will be used.

• Mesh On Spline
• Mesh On Spline with Transform

There is also an option taking a random element from an array of meshes or materials.

• Random Mesh On Spline

* Work in Progress

... To Transform Nodes

Type to transform into the search box to find these nodes.

They can be used to simplify the transform input if only one axis or transform type needs to be modified.

Additional Transforms

Random Offset Type

The values in the transform are used as a random range

• Location and Rotation: 25.0 will offset between -25 and +25
• Scale: 1.25 will scale between 0.75 and 1.25

Changing the Random Seed value will reshuffle the meshes and materials. The seed can only be changed in the Random Mesh On Spline node.

Material Parameters are always re-generated randomly when altering the blueprint.

Weight will be ignored at the moment.

• Random Material Color Parameter: colors
• Random Material Scalar Parameter: simple variables
• Random Material Vector Parameter: 2D-3D-4D Vectors