← CAD and mesh conversion guides

OCCT conversion workflows

OBJ to glTF / GLB

Convert OBJ meshes to glTF or GLB for browser delivery. Check object structure, supported appearance and resource packaging in the output scene.

Build this conversion into your application with OCCT readers, writers and the commercial components identified below.

Ask about this workflow
Input interface
OCCT OBJ reader
Processing route
Mesh to mesh
Output interface
OCCT glTF writer

Prepare OBJ assets for scene delivery

OBJ-to-glTF conversion takes existing polygonal geometry into a scene format used by web and graphics applications. It can reuse the source mesh rather than passing through BRep reconstruction and tessellation. Choose glTF or GLB packaging according to the asset-loading workflow.

The conversion begins with the supported geometry and appearance read from the OBJ source. Associated material or texture resources must be available when they are needed by the import path.

Build a useful scene structure

Decide how source objects and groups should appear as scene items. Check their names, positions and orientation, particularly when several assets are combined in one application document. Preserve identifiers that the web application uses to connect a selected scene item to product information.

Appearance mapping should be evaluated with actual material examples. Source and destination material models are different, and a converter should not promise identical rendering under every lighting setup. Compare the properties supported by the reader and writer with the target viewer’s interpretation.

Verify loading and visual quality

Reopen the scene and inspect missing resources, geometry coverage, normals and material assignment. Measure asset size, first display and interaction for the devices that will use the result. If the source tessellation is coarse, converting it to GLB does not recover smooth CAD surfaces.

Light Web Viewer provides an integration path for browser inspection. For a wider collection of mesh input formats, Assimp Import can feed an application workflow that uses a separate glTF writer.

Conversion integration

Build a OBJ to glTF / GLB workflow

Share the source and receiving applications, representative files, required attributes and throughput. We can scope SDK evaluation or an integrated conversion service.