public void AddGeometryResources(ModelRoot root, IEnumerable <SceneBuilder> srcScenes, SceneBuilderSchema2Settings settings)
{
// gather all unique MeshBuilders
var srcMeshes = srcScenes
.SelectMany(item => item.Instances)
.Select(item => item.Content?.GetGeometryAsset())
.Where(item => item != null)
.Distinct()
.ToArray();
// gather all unique MaterialBuilders
var materialGroups = srcMeshes
.SelectMany(item => item.Primitives)
.Where(item => !Geometry.MeshBuilderToolkit.IsEmpty(item))
.Select(item => item.Material)
.Distinct()
.ToList()
// group by equal content, to reduce material splitting whenever possible.
.GroupBy(item => item, Materials.MaterialBuilder.ContentComparer);
// create a Schema2.Material for every MaterialBuilder.
foreach (var mg in materialGroups)
{
var val = root.CreateMaterial(mg.Key);
foreach (var key in mg)
{
_Materials[key] = val;
}
}
// create a Schema2.Mesh for every MeshBuilder.
var dstMeshes = root.CreateMeshes(mat => _Materials[mat], settings, srcMeshes);
for (int i = 0; i < srcMeshes.Length; ++i)
{
_Meshes[srcMeshes[i]] = dstMeshes[i];
}
// TODO: here we could check that every dstMesh has been correctly created.
}
public void OnElementEnd(ElementId elementId)
{
Element e = CurrentDocument.GetElement(elementId);
if (e != null)
{
if (null == e.Category)
{
Debug.WriteLine("\r\n*** Non-category element!\r\n");
return;
}
}
if (_mesh.Primitives.Count > 0)
{
_scene.CreateNode().WithMesh(_model.CreateMeshes(_mesh)[0]);
}
Debug.Print($"ElementEnd {elementId.IntegerValue}");
}