Help Documentation is incomplete for a beginner at 6.4

[josemendez]

Hey Team,

The asset is really cool but I still have 1 similar doubt. When using Obi Roper Cursor to change the length. It either reduces the rope at the start or end.

Just place the solver at a different point in the rope, other than the start or the end. This is done by setting the cursor's "mu" property. See:
http://obi.virtualmethodstudio.com/manua...ursor.html

it also doesn't seem to work all the time. Not sure why.

Make sure the blueprint has enough pooled particles to increase the length of the rope. The default is 100, once the cursor has added 100 extra particles there will be none left in the pool and the rope will not extend further. See "pooled particles" in the blueprint:
http://obi.virtualmethodstudio.com/manua...setup.html

The Crain example is not apt since it extends the rope only at the end.

Nope, the Crane example extends the rope at the middle.

Note that when using a ObiRopeExtrudedRenderer to draw the rope, the mesh UV coordinates can be anchored at any point in the rope, but they must be continuous (see "UV Anchor" property of the extruded renderer).

This means that while you can physically insert new particles in the rope at any point along its length, the texture coordinates may be anchored at a different point, giving the impression that the rope is being resized in a different way. This is the trick used by the Crane example: the rope is extended in the middle, but the UV coords are anchored at one end, so the rope looks as if resized from one end. This is just a visual illusion: the texture coordinates "slide" across it to achieve this.

kind regards,