The color of urdf using common shapes is always black even if a material color specified

[marantos]

I am not an expert in Javascript but this assignment to null cause to get always the default color (i.e., black). After version 1.0.1, this function is introduced by splitting the above one.

I think, we can either add the colorMaterial as argument to that function, or re compute it as in the above function by using the visual arg.

ros3djs/src/urdf/Urdf.js

Line 97 in 7e61ef5

var colorMaterial = null;