[TubeTrailMesh] represents a straight tube-shaped mesh with variable width. The tube is composed of a number of cylindrical sections, each with the same [member section_length] and number of [member section_rings]. A [member curve] is sampled along the total length of the tube, meaning that the curve determines the radius of the tube along its length.
This primitive mesh is usually used for particle trails.
If [code]true[/code], generates a cap at the bottom of the tube. This can be set to [code]false[/code] to speed up generation and rendering when the cap is never seen by the camera.
If [code]true[/code], generates a cap at the top of the tube. This can be set to [code]false[/code] to speed up generation and rendering when the cap is never seen by the camera.
Determines the radius of the tube along its length. The radius of a particular section ring is obtained by multiplying the baseline [member radius] by the value of this curve at the given distance. For values smaller than [code]0[/code], the faces will be inverted.
The number of sides on the tube. For example, a value of [code]5[/code] means the tube will be pentagonal. Higher values result in a more detailed tube at the cost of performance.
The baseline radius of the tube. The radius of a particular section ring is obtained by multiplying this radius by the value of the [member curve] at the given distance.
The number of rings in a section. The [member curve] is sampled on each ring to determine its radius. Higher values result in a more detailed tube at the cost of performance.
