Mesh and scene import
Assimp Import
Import meshes, colors, materials and scene structure through the OCCT3D Assimp integration. Connect multiple asset formats to engineering applications.
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Import mesh assets and scene data
The OCCT3D Assimp integration reads mesh geometry, colors, materials and scene structure. It connects applications to the asset formats covered by the Assimp integration, providing a common entry point for mesh-based content from different tools.
Use it for engineering visualization, asset preparation and applications that combine CAD workflows with polygonal models. This component provides import; it does not add an Assimp export workflow.
Supported input formats
The OCCT3D data exchange catalog includes .blend, .3ds, .3mf, .ac, .amf, .ase, .dae and .x3d among the Assimp inputs. PLY mesh reading is also available through Assimp; browse PLY conversion guides. See the data exchange format catalog when selecting readers for a mixed-format pipeline.
Specify the file format and producing application during evaluation. Formats differ in the scene information they can store, so confirm the relevant geometry and attributes with representative assets.
Mesh, appearance and structure
| Imported data | Application use |
|---|---|
| Mesh geometry | Display and process polygonal models |
| Colors | Retain the visual identification present in the asset |
| Materials | Bring material information into the application’s appearance workflow |
| Scene structure | Keep the organization of objects for traversal and presentation |
Structure and appearance can be as important as the triangles themselves. A viewer needs to associate model items with their visual properties; an asset pipeline needs to retain the organization required by subsequent processing.
Connect imported assets to an engineering workflow
Start by reading the mesh and scene data, then inspect the structure, colors and materials used by the application. When conversion to another format is required, select a separate writer from the exchange catalog and check its output capabilities.
Mesh import does not reconstruct the original CAD surfaces or parametric feature history. For surface reconstruction from measured points, explore Surface from Scattered Points. For preparation of a watertight mesh from imperfect tessellation, see Surface Wrapping.
Evaluate Assimp import
Provide the asset extension, producing application and the scene information you need. Include typical mesh size, material requirements and the intended processing or visualization workflow.
Discuss Assimp integration or explore web CAD visualization.
Conversion guides by input format
Choose the Assimp source and then the separate output writer: Blender BLEND, 3DS, 3MF, AC3D, AMF, ASE, COLLADA DAE or X3D.
Mesh-capable STEP, STEP XML and DXF writers can carry these imported meshes into CAD applications. Scene and polygon writers provide other destinations. Each guide explains the geometry and attribute mapping to check; importing an authoring format does not preserve every authoring feature in the output.