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Recommended GLB Export Workflow ​

Blender ​

Export Settings ​

File ‣ Export ‣ glTF 2.0 (.glb, .gltf)

  1. Selected Objects: Export only the selected objects.
  2. Vertex Colors: For models that do not use vertex colors, uncheck this option to prevent vertex colors from affecting the exported appearance.
  3. Animation Mode

Active Actions Merged: In this mode, the active actions on all objects are merged and exported as a single animation clip. Useful when exporting only one animation. Active action: the action currently activated in the Action Editor.

NLA Tracks: In this mode, each Non-Linear Animation track is exported as a separate glTF animation clip. Useful when exporting multiple animation clips.

  1. For all other settings, refer to the official documentation and adjust according to your specific needs: https://docs.blender.org/manual/en/latest/addons/import_export/scene_gltf2.html

Check the Model ​

  1. If the scene contains curves, text, or other non-mesh objects, select them, right-click, and choose Convert To → Mesh.

  1. Verify all transforms are applied. If not, press Ctrl+A, select the items to reset, and click Apply.

  1. Merge meshes: It is recommended to merge meshes that share the same material into a single mesh to reduce the mesh count on export. Select the meshes to merge, right-click, and choose Join.

  1. Check normals: Open the Viewport Overlays menu (top-right of the viewport) and enable Face Orientation. Faces shown in red have incorrect normals.

Enter Edit Mode, select the problematic faces, then go to Mesh → Normals → Flip.

  1. Apply modifiers: Manually apply modifiers before export rather than relying on the "Apply Modifiers" checkbox at export time. This ensures predictable geometry output, cross-software compatibility, and prevents export anomalies.

Check Materials ​

PBR Material

The core glTF material system supports the Metallic/Roughness PBR workflow via the following channels:

  • Base Color: Determined by the Base Color input on the Principled BSDF node. If not connected, the default color value is used. If an Image Texture node is connected to the Base Color input, that image is used as the glTF base color.
  • Metallic / Roughness: The Image Texture node's Color Space must be set to Non-Color.
  • Normal Map (Tangent Space, +Y Up): Connect the Image Texture color output → Normal Map node color input → Principled BSDF Normal input. Set the texture's Color Space to Non-Color.
  • Emissive: An Image Texture node connected to the Emission input of the Principled BSDF will be exported as the glTF emissive map.
  • Baked Ambient Occlusion: Connect to a custom node group named glTF Material Output.

Unlit Material

To export an Unlit material, use a Camera Ray Mix shader as shown in the diagrams below.

Standard Unlit material

Unlit material with alpha transparency channel

3ds Max ​

Export Settings ​

File → Export → Real-Time Exporter, or alternatively File → Export → Export (Selected) → GLTF

  1. File Format: Select GL Transmission Format.
  2. Export Set: Choose to export all objects in the scene, selected objects, or an object group. Exporting only selected objects makes it easy to control which models are exported.
  3. Export glTF Binary (.glb): Packages all data into a single GLB binary file.
  4. For all other settings, refer to the official documentation and adjust according to your specific needs: https://help.autodesk.com/view/3DSMAX/2027/ENU/?guid=GUID-5B4C8EC2-2230-4F9F-B3C6-48D9E347E37D

Known Limitations ​

  • No animation, skin, or morpher data is exported.
  • Hierarchies are flattened on export.
  • Vertex colors are not exported.
  • The exporter does not support nested multi/sub-object and shell materials past the second level of nesting.
  • Bitmap textures are the only supported map input for the glTF Material.
  • Bitmaps with the same name but different file types are not exported correctly (if the material has both a red.png and a red.jpg, only one bitmap will export).
  • Materials are not exported correctly when using multi/sub-object materials that have empty slots in the Multi/Sub-Object Basic Parameters rollout.
  • The double-sided material property is not previewed as expected when exporting only glTF materials connected to a Multi/Sub-Object material. Workaround: Export objects that are not connected to a Multi/Sub-Object material separately.

Check the Model ​

Modifiers are not supported at the modifier stack level. Convert all geometry to Editable Poly before exporting.

Check Materials ​

It is recommended to use the glTF Material: Material Editor → General → glTF Material.

Known Limitations of the glTF Material

  • glTF Materials only require RGB input (no Alpha).
  • Auto-packed textures generate their data based on the bitmap's "brightness" from an HSL perspective (MAXScript: color.value or color.v).
  • Using Multi/Sub-Object materials with empty material slots may result in incorrect materials on exported faces.
  • Packed textures must share the same dimensions and texture transforms; otherwise results will not display as expected.
  • When using Undo/Redo, the enabled/disabled state of some UI elements in the glTF Material may not update correctly. Fix by switching to a different material in the Material Editor and then re-selecting the original.
  • Although the "Unlit" preview will render emission/lighting in the active shading mode, it will not illuminate in a glTF viewer.
  • Packed textures must share the same dimensions.

Maya ​

Not supported. Please refer to the FBX Export process.

Cinema 4D ​

Export Settings ​

  1. Current Frame: Uses the current frame's pose as the rest state of the exported model.
  2. Skinning: Export models with skeletal animation.
  3. Bake Animation: Bakes the animation into keyframes on export, avoiding discrepancies caused by different software interpreting animation curves differently.
  4. Texture Size: You can resize textures at export time. Enable the Scale Textures option to change the output resolution. The maximum texture size supported by the platform is 2048 × 2048.
  5. For all other settings, refer to the official documentation and adjust according to your specific needs: https://help.maxon.net/c4d/en-us/Default.htm#html/FGLTFEXPORTER.html

Known Limitations ​

  • Due to slightly different material concepts, Cinema 4D and glTF may produce different visual results; material adjustments are usually required.
  • The texture interpolation setting in the Preferences menu will be applied during texture export.
  • Error messages that appear when importing a Cinema 4D–exported glTF scene into a glTF viewer are generally harmless; the scene will typically display correctly.
  • Node materials (Standard/Physical renderer) are not supported.
  • In glTF, textures for Reflectance Strength and Roughness Strength must share the same aspect ratio, as they are packed into a single bitmap on export. The same applies to Color and Alpha textures.
  • Multiple materials on different polygon selections of the same object are supported; geometry will be split into separate objects internally.
  • When exporting, avoid assigning different materials to polygon objects with joint animations attached — the joint setup will not work correctly.
  • Exported animation length is determined by the Time Min and Max Time settings in the Project Settings menu.
  • PLA (Point-Level Animation) points with zero weight or non-normalized weights are not supported by glTF. Workaround: assign those points to a root joint (dummy joint) before exporting.
  • Light sources are not supported for export or import.

Check the Model ​

Effectors and MoGraph objects are not supported. Convert them to polygonal meshes before exporting.

Check Materials ​

Use Standard, Physical, or Redshift materials. Ensure textures are directly connected to the material.

ZBrush ​

Not supported. Please refer to the FBX Export process.

Nomad Sculpt ​

Export Settings ​

  1. Include: Choose All, Visible, or Selected objects. Export only model meshes — do not export lights.
  2. Vertex Colors: Not needed for plain meshes or models with baked textures. Enable if the model uses vertex color painting.
  3. PBR Paint: Exports roughness, metalness, and mask painting. This is intended for re-import into Nomad only; other software will not recognize it. Recommended to leave unchecked.
  4. Normals: Exports the model's smoothing information. Enabled by default.
  5. Tangents: Controls how normal maps are processed so that different software can correctly display them. Recommended to enable.
  6. Textures: Enable to export baked texture maps. Note: this does not bake Nomad vertex color painting to textures. Enable this for models that have baked textures.
  7. For all other settings, refer to the official documentation and adjust according to your specific needs: https://nomadsculpt.com/manual/files#export

Use Decimate or Remesh to bring the polygon count within an acceptable range, then bake vertex color painting to a texture map.

Clone the model and hide one copy. Activate the visible copy — this will be the low-poly target for decimation and baking. ​

Switch to the Topology tab and use the Decimate button to reduce polygons. Set a percentage to control the decimation amount. ​

Click Unwrap UV. ​

Click Bake from Multires. The texture resolution can be set in the panel below. ​

At this point the high-poly mesh is hidden. When exporting, select Visible Only — this is convenient when the model has multiple objects. ​

Procreate ​

Procreate supports import/export as USDZ or OBJ only. glTF is not supported.

Export OBJ ​

Share → OBJ

The exported package contains an **.obj** file, an **.mtl** file, and a **textures** folder. Zip the entire package and it is ready to upload.