Hey there! I’ve dealt with this exact headache before when sharing Unity models with artists—nothing’s more frustrating than sending a model that shows up completely white without textures. Let me break down the steps to export FBX files with all your textures intact, plus some troubleshooting tips if you run into snags.

Step 1: Prep Your Model and Materials First #

Before you even hit export, make sure your setup is solid:

• Stick to the Standard Shader for your materials whenever possible. Custom or Unity-specific shaders might not translate well to FBX, leading to missing textures.
• Verify every texture (albedo, normal map, metallic, etc.) is properly assigned in the material inspector. Also, ensure all texture files are stored inside your Unity project’s Assets folder—external paths can break references during export.

Step 2: Use Unity’s Native FBX Export (Skip Third-Party Plugins First) #

Third-party export tools sometimes cut corners on texture embedding. Start with Unity’s built-in tool:

• Right-click your model (either in the Project window or Hierarchy if it’s placed in the scene) and select Export FBX.
• In the export dialog, focus on the Include section:
  • Set Materials to Embed—this is the critical setting. If it’s set to None or External, textures won’t be packed into the FBX file.
  • Set Textures to Embed too (though embedding materials usually pulls in linked textures automatically).
• Under Mesh settings, double-check that Tangents and Normals are enabled—artists need these for normal maps and other detail textures to work correctly.
• Hit Export and save the file to a location you can easily share.

Step 3: Fix Common Texture Missing Issues #

If your exported FBX is still white, try these fixes:

• Check for broken references: Pop open Unity’s Console window and look for warnings about missing textures or invalid material links. Fix these before re-exporting.
• Use standard texture formats: Unity’s internal .asset texture files won’t export properly. Convert your textures to .PNG, .JPG, or .TGA and re-import them into your project if needed.
• Rename duplicate materials: If multiple materials have the same name, Unity might fail to embed all of them. Give each material a unique name before exporting.
• Test in a 3D tool: Open the FBX in Blender, Maya, or a free viewer like FBX Review. Sometimes the issue is with the artist’s import settings, not your export—confirm the textures are actually embedded first.

Bonus: Advanced Export for Complex Models #

If you’re working with a model that has lots of sub-meshes or custom shaders, use Unity’s official FBX Exporter Package:

• Go to Window > Package Manager, search for FBX Exporter, and install it.
• This tool gives you more control over how materials and textures are packed, and it handles complex setups better than the basic export option.

内容的提问来源于stack exchange，提问作者Spyros