Stack overflow issue with model.

[coderextreme]

Please use this model in a safe environment. It currently creates a stack overflow condition in sunrize. Could be a pilot error. The model was exported from blender with an AI program, converted to .x3d with x3d-tidy, and converted to .glb with another AI program. Slop, yes, but it's written out with pygltflib.

John

HumanoidComplete.zip

[create3000]

Have you already validated the model?

https://github.khronos.org/glTF-Validator/

[coderextreme]

I forgot, I apologize. I got excited when I saw it work in Castle. John

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On Sat, Apr 4, 2026 at 2:43 PM Holger Seelig ***@***.***> wrote: *create3000* left a comment (create3000/sunrize#25) <#25 (comment)> Have you already validated the model? https://github.khronos.org/glTF-Validator/ — Reply to this email directly, view it on GitHub <#25 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAFMJ5ZELP5XMBNSEEFPW4T4UFQVTAVCNFSM6AAAAACXM2DIK6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCOBXGY2DAMJZG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[coderextreme]

Okay, here's one with no errors, only warnings and info. Still same behavior. I will see if I can fix it.

HumanoidComplete2.zip

I will see if I can fix the issue, but I'm moving on to animation in the short term.

$ gltf-transform validate HumanoidComplete.glb > errors.txt

[coderextreme]

Here's another one with only "INFO" warnings with gltf-transform. I will try needle or vs code next.

JoeKickAnimation.zip

[create3000]

After investigating the file and errors I get, I came to the conclusion that there must be a cyclic scene graph, which is hard to detect and even harder to prevent. Tested the file (HumanoidComplete.zip) in Babylon and Three and both produce no results.

[coderextreme]

I also provided HumanoidComplete2.zip which should have updated .glb without errors. Also the JoeKickAnimation.zip which contains a .glb. Since I see that you confirmed issue, I will assume that this problem is now on your radar. Be aware that some files, like Joe Kick can contain texture transforms, the texture transforms are only viewable in Babylon.js (Use VS extension with glTF logo, import the glb while clicking on it, then right click context click and you will see 4 tabs for .gltf viewers). I do hope that Sunrize implements .glb texture transform extension, as I only have one .glb browser that currently implements them, and I really like Sunrize, etc., and use it to view .x3d TextureTransforms when nothing else does. I am not sure if I translated the texture transform to .glb properly. I’m waiting on Joe to confirm that Sunrize is correct. Since I couldn’t view Joe Kick .glb in Sunrize, it was difficult to confirm behavior. I would love to hear successful results in Sunrize, because it’s my primary X3D and GLB viewer, as i like command line TUIs and CLIs. I keep hoping with hard accelerated terminals, some enterprising soul will do 3D in ghostty, cmux or similar. John

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On Sun, Apr 5, 2026 at 2:39 PM Holger Seelig ***@***.***> wrote: *create3000* left a comment (create3000/sunrize#25) <#25 (comment)> After investigating the file and errors I get, I came to the conclusion that there must be a cyclic scene graph, which is hard to detect and even harder to prevent. Tested the file (HumanoidComplete.zip <https://github.com/user-attachments/files/26484258/HumanoidComplete.zip>) in Babylon and Three and both produce no results. — Reply to this email directly, view it on GitHub <#25 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAFMJ55FF7DC45JA4OKGLPL4UKY5LAVCNFSM6AAAAACXM2DIK6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DCOBZGQYTGMZXGE> . You are receiving this because you authored the thread.Message ID: ***@***.***>