Autodesk Forge import IFC failed

our customer try to show IFC model through method https://developer.api.autodesk.com/oss/v2/buckets/bucket_name/objects/model_name. IFC model is huge, about 100km, it is road design. He can't show it in Forge, he got error that model is empty, although it has 120MB. Model is in IFC4. Has You any documentation to supported IFC classes, or model size to show in FOrge ? He try to divide model to smaller parts, but nothing happen.

Milan Nemec, Graitec

Solution

A few things to check:

Did you call the conversion job to translate the IFCs to SVF first? Using this endpoint here?
Is the conversion completed? Try here to query the progress.
And if everything works out the manifest response should contain SVF derivatives similar to:

{
  "type": "manifest",
  "hasThumbnail": "true",
  "status": "success",
  "progress": "complete",
  "region": "US",

EDIT

For IFC models exported from Revit try switch to the IFC loader by specifying in your job payload:

{
    "input": {
        "urn": "dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6c2JzYjIzMzMvc2JiLmlmYw"
    },
    "output": {
        "formats": [
        {
            "type": "svf",
            "views": ["3d", "2d"], "advanced": {
                "switchLoader": true
              }
        }]