public override void RenderScene(DB.View dBView, Autodesk.Revit.DB.DisplayStyle displayStyle)
{
try
{
if (primitives == null)
{
if (rhinoObject is PointObject pointObject)
{
primitives = new Primitive[] { new ObjectPrimitive(pointObject, pointObject.PointGeometry) };
}
else if (rhinoObject is PointCloudObject pointCloudObject)
{
AddPointCloudPreviews(pointCloudObject.PointCloudGeometry);
}
else if (rhinoObject is CurveObject curveObject)
{
primitives = new Primitive[] { new ObjectPrimitive(curveObject, curveObject.CurveGeometry) };
}
else if (rhinoObject is MeshObject meshObject)
{
AddMeshPreviews(meshObject.MeshGeometry);
}
else if (rhinoObject.IsMeshable(MeshType.Render))
{
var meshingParameters = rhinoObject.GetRenderMeshParameters();
if (rhinoObject.MeshCount(MeshType.Render, meshingParameters) == 0)
{
rhinoObject.CreateMeshes(MeshType.Render, meshingParameters, false);
}
var renderMeshes = rhinoObject.GetMeshes(MeshType.Render);
if (renderMeshes?.Length > 0)
{
int vertexCount = renderMeshes.Select((x) => x.Vertices.Count).Sum();
if (vertexCount > VertexThreshold)
{
foreach (var m in renderMeshes)
{
AddMeshPreviews(m);
}
}
else
{
var previewMesh = renderMeshes.Length == 1 ? renderMeshes[0] : null;
if (previewMesh == null)
{
previewMesh = new Mesh();
previewMesh.Append(renderMeshes);
}
AddMeshPreviews(previewMesh);
}
}
}
}
if (primitives != null)
{
DB3D.DrawContext.SetWorldTransform(Autodesk.Revit.DB.Transform.Identity.ScaleBasis(1.0 / Revit.ModelUnits));
foreach (var primitive in primitives)
{
if (DB3D.DrawContext.IsInterrupted())
{
return;
}
primitive.Draw(displayStyle);
}
}
}
catch (Exception e)
{
Debug.Fail(e.Source, e.Message);
}
}