IFC-ZIP package MIME Type

Learn what model/x-ifczip identifies, how IFC-ZIP package files are encoded, and how Poly supports them.

MIME type details for model/x-ifczip

In active use
MIME typemodel/x-ifczip
Extensions
.ifczip
First standardizedUnknown
Created bybuildingSMART International
Browser support
Example applicationsIfcOpenShell, BIMcollab
Poly supportPartial. Poly recognizes this 3D media type and processes supported files.
Indexed by PolyYes. Poly indexes filenames and visual similarity for processed geometry; scene counts are displayed in Details.
Preview in PolyPartial. Poly provides an interactive preview for supported constructs.
Poly agentYes. An optimized rendition of the 3D object or scene is provided to the agent, allowing compact yet information-rich multimodal interaction with 3D files.

What does model/x-ifczip mean?

IFCZIP packages bundle IFC exchange data with related resources. This is useful when a model refers to images by relative path; buildingSMART documents textures located inside an IFC-ZIP package.1 The wrapper does not replace the contained IFC schema, release, or Model View Definition.

The associated extensions are .ifczip. The media type identifies the format family; it does not convert bytes or guarantee that a reader supports every entity.

Poly support

Poly can recognize this type as 3D content and index filenames and visual similarity for processed geometry; scene counts are displayed in the Details panel. An optimized rendition of the 3D object or scene is provided to the agent, allowing compact yet information-rich multimodal interaction with 3D files.

ConstructWhat to expect
Geometry and scene structureAvailable when import succeeds.
Materials and texturesDepends on source constructs and supported rendition features.
Lighting, cameras, and animationAvailable when present and supported.

Opening and conversion

Use a format-aware application when preserving editability matters. Conversion to glTF or OBJ can improve interchange for 3D viewing, while CAD and BIM workflows should retain the original schema and exchange context.

Footnotes

  1. https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2/HTML/schema/templates/image-texture.htm.
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