solved Help me re: creating meshes from scratch

[djvs]

I'm completely in the dark when it comes to creating meshes from scratch. I figured it out as far as positions, indices, applying vertex data...I have this basic example, creating a barn-wall style pentagon from 5 x,y,z primitive vertex arrays -

var v2pent = (v3s, mesh) => {
  // clockwise from tl, 0 1 4, 1 3 4, 1 2 3
  var vtxdt = new BABYLON.VertexData
  vtxdt.positions = _.flatten(_.map([0,1,4,1,3,4,1,2,3], i => v3s[i]))
  vtxdt.indices = [0,1,2,3,4,5,6,7,8]
// these two lines added to try to debug, no help
//  vtxdt.normals = [0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1]
//  vtxdt.uvs = _.flatten(_.map([0,1,4,1,3,4,1,2,3], i => [v3s[i][0],v3s[i][1]] ))

  var mesh = mesh || new BABYLON.Mesh('t1', scene)
  vtxdt.applyToMesh(mesh, true)
  return mesh
}

It sort of works, but the meshes are always dark gray to black (not picking up light?), and more importantly right now, not coming up when they're the foreground-most mesh when calling scene.pick - the other pentagon wall behind it will pick it up first! Help very much appreciated - I've read pretty much all the relevant docs and am totally confused. I don't know if its the uv and/or normal calculation, or if there's some helper function in the library to generate those for me (besides just ComputeNormals)? Is it something I could solve with BABYLON.Mesh.DOUBLESIDE, or an equivalent?

The material used in this case is the following by the way:

var wallMaterial = new BABYLON.TriPlanarMaterial("metal", scene);
wallMaterial.tileSize = 12;
wallMaterial.diffuseTextureX = metalTexture;
wallMaterial.diffuseTextureZ = metalTexture;
wallMaterial.backFaceCulling = false;

 

(copy and pasted from my issue here https://github.com/BabylonJS/Babylon.js/issues/2735)

[djvs]

Well, looks like the darkness came from trying to override the default uv/normals, and the issue with the wrong wall being selected was my own fault on an unrelated issue.  

[GameMonetize]

The important thing is that you are unblocked

[djvs]

No kidding, I just completed that feature too.