Support huge breps

[didimitrie]

Some breps deserialise to huge speckle objects. Features include:

• holes
• lots of fillets
• maybe chamfers

[didimitrie]

Not really sure what's going on, but just the byte[] of this guy is huge:
RH5_ExampleBigHugeBrep.3dm.zip

Also generates a mesh of several zillion vertices, etc. whereas if you just mesh it normally with the default mid-way quality, you get 1/6th of that.

[didimitrie]

I've made a tiny bit of headway here:

Code for meshing:

MeshingParameters mySettings = new MeshingParameters(0);
mySettings.SimplePlanes = true;

Mesh[] meshes = Mesh.CreateFromBrep(x as Brep, mySettings);
var brep_mesh = new Mesh();
foreach (var mesh in meshes)
    brep_mesh.Append(mesh);

As you can see we get similar results to rhino's meshing with "fewest polygons" settings, which is what we're after.

This results in:

a total object size of approx 1000kb pre compression (700kb raw rhino size + 200kb mesh) vs old speckle converter obj size of more or less 1500kb.

If this holds, we're in for a size reduction of 30% (500kb) pre payload gzipping for this specific case.