custom linerenderer [solved]

i want to create a dynamic trail behind an object (sword).

basically the unity linerenderer and trailrenderer dont quite do the job.

so can i acess and modify the linerenderer script somewhere?​

or what is the best practice to create and modify vertex data in realtime in unity?

any tip or link to documentation appreciated


what i am trying to do:
the trail is supposed to behave similar to a flag, meaning the quads span between the two ends of the blade.
adding a new quad which connects to the new positions every frame, removing (or recycling) one, scrolling uvs etc

 

i guess this is what i wanted:

https://docs.unity3d.com/ScriptReference/Mesh.html

 

i found and made what i was looking for
a quick rough implementation for other to use

needs to be attached to a GameObject with a Mesh filter and mesh renderer, p.e. the basic plane

overwrites the mesh content on runtime

 

Thanks for the script!! I wrote a complete multi line renderer from your script that combines, weld, optimize all vertices.

There are 2 small issues I have fixed.
1) The length of the horizontal UV's are too short.
2) the texture is mirrored

Code (CSharp):

1. uvs[i] = new Vector2(0f, (float)i / (float)vertices.Length);
2. uvs[i + 1] = new Vector2(1f, (float)i / (float)vertices.Length);

exchange with:

Code (CSharp):

1. uvs[i + 0] = new Vector2(1f, (float)i / (float)vertices.Length-2);
2. uvs[i + 1] = new Vector2(0f, (float)i / (float)vertices.Length-2);

Further your need:

Code (CSharp):

1. m_mesh.RecalculateBounds();
2. m_mesh.RecalculateNormals();