How to Fix Common 3D Generation Errors in Neural4D

Use the symptom below to find the most likely cause and the next action. A longer wait does not always mean a task has failed: an untextured base mesh takes about 90 seconds, while Texture and PBR add processing time.

Why was my Image to 3D task rejected?

Image to 3D accepts PNG, JPG, JPEG, and WebP files up to 20 MB. Replace an unsupported or oversized file, then submit the task again.

Also confirm that your account has enough Credits for all selected options. Credits are deducted when a task is submitted. Every repeated submission is charged separately.

Why does the mesh have holes, missing parts, or the wrong shape?

The model must infer hidden geometry from the input. A cropped subject, several objects, weak contrast, transparency, glare, or motion blur can make that reconstruction less reliable.

• Use one object and keep the complete silhouette inside the frame.
• Choose a simple background that contrasts with the subject.
• Use even lighting and avoid glass, chrome glare, and strong shadows when possible.
• For a specific existing object, provide a clearer reference instead of adding unrelated details to the prompt.

Then submit a new generation. A regular Text to 3D or Image to 3D model cannot be moved into Neural4D-2o for correction.

Why is my model an untextured white mesh?

If you did not select Texture, a white base mesh is the expected result. If you selected Texture or PBR, wait until all processing steps finish, then reopen the completed asset from the Assets Library.

If the saved asset is marked complete but still lacks the selected texture output, report the issue through the Feedback page.

What should I do when progress appears stuck?

An untextured base mesh takes about 90 seconds. Texture and PBR are additional steps, and a complete textured result normally takes more than two minutes. Complex tasks may take longer, so do not decide that a task failed based only on elapsed time.

1. Open the Assets Library and check whether the task completed or shows an incomplete state.
2. Open Account and review Usage History for the task charge and any Credits Return entry.
3. If the task failed because of a server-side error, wait for the automatic Credit return before submitting it again.
4. If the task stays unresolved, send the issue description, your contact information, and a screenshot to support.

Neural4D does not currently provide a way to cancel an active generation task.

Why can I not download a completed model?

Open the saved result from Assets Library and retry the download. If the session has expired, sign out and sign in again. You can also test another supported format to determine whether the problem affects one file or the entire asset.

Text to 3D and Image to 3D models support GLB, OBJ, FBX, USDZ, STL, and BLEND. See the format guide before converting a file in another application.

How do Credits work when a task fails?

For the complete refund rule, read Will My Credits Be Refunded if a Generation Fails?

When should I contact support?

Contact support@neural4d.com or use the Feedback page if a task remains unresolved, a server failure has no matching Credit return, or a completed asset cannot be downloaded.

Include a clear problem description, your contact information, and screenshots. A Task ID is helpful when available, but it is not required.