← CAD and mesh conversion guides

OCCT conversion workflows

STL to glTF / GLB

Convert STL meshes to glTF or GLB for browser viewing. Set model scale, create scene items and prepare geometry for the target viewer.

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

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Input interface
OCCT STL reader
Processing route
Mesh to mesh
Output interface
OCCT glTF writer

Put STL geometry into a web scene

STL-to-glTF conversion reads triangle geometry and writes it as a scene asset. GLB is the binary packaging option for the glTF workflow. This route gives an existing STL model a delivery format suitable for browser viewers and other graphics applications.

The geometry is already tessellated, so conversion can use the mesh directly. There is no need to reconstruct CAD surfaces merely to change the asset format.

Add scene organization from known information

STL does not supply a rich assembly tree, material model or dependable unit declaration. Establish the intended scale and identify how the application should name and organize the model. If the application adds colors, product identifiers or other properties, keep that enrichment distinct from imported data.

Multiple STL files can be incorporated into an application scene, but their relative placements must come from known coordinates or external records. The converter cannot infer an original assembly relationship from unrelated triangle files.

Evaluate the viewer result

Check orientation, normal appearance, visible surfaces and loading cost after writing glTF or GLB. A coarse STL remains coarse; a scene container does not recover smooth source geometry. Retain higher-detail input when close inspection is required.

Light Web Viewer provides browser navigation, measurement and sectioning capabilities for an integrated scene workflow. For an OBJ destination instead, see STL to OBJ. Choose the target around the receiving application’s loading and interaction requirements.

Conversion integration

Build a STL 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.