Kali Rigging Attempts Log

Date: 2026-03-03 Source model: https://cdn.cinevva.com/hunyuan3d/kali-tpose/model.glb Rig endpoint: POST https://api.cinevva.com/genai/rig

This file tracks every rigging attempt with exact parameters and outcomes so we can reproduce or audit each run.

Attempt History

Attempt	jobId	rotationY	bakeWalkAnimation	Output URL	Local file	Observed result
1	e4d77502-4a41-4498-86ea-183c2ed83d35	-90	true	https://cdn.cinevva.com/rigging/e4d77502-4a41-4498-86ea-183c2ed83d35/model.glb	kali-rigged-attempt1-minus90.glb	Upright model. Walk cycle appears backward.
2	bdf76647-bc41-459d-b94a-96ee1d8f9b67	90	true	https://cdn.cinevva.com/rigging/bdf76647-bc41-459d-b94a-96ee1d8f9b67/model.glb	kali-rigged-attempt2-plus90.glb	Model appears upside down.
3	5844ded8-1ba4-409b-a4b2-a9ca8d710893	not set	true	https://cdn.cinevva.com/rigging/5844ded8-1ba4-409b-a4b2-a9ca8d710893/model.glb	kali-rigged-attempt3-zero.glb	Model appears upside down and distorted.
4 (repeat of 1)	53e0179d-f5d0-405c-93c9-1f430c385c04	-90	true	https://cdn.cinevva.com/rigging/53e0179d-f5d0-405c-93c9-1f430c385c04/model.glb	kali-rigged-attempt4-repeat-minus90.glb	Repeat test for stability.
5 (repeat of 2)	f2dfd053-476c-4d7b-a0e2-ed1469abd05c	90	true	https://cdn.cinevva.com/rigging/f2dfd053-476c-4d7b-a0e2-ed1469abd05c/model.glb	kali-rigged-attempt5-plus90-repeat.glb	Repeat test for +90 stability.

Reproducible Request Payloads

Run command template:

export API_ADMIN_KEY=your-key

curl -s -X POST "https://api.cinevva.com/genai/rig" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $API_ADMIN_KEY" \
  -d @payload.json

curl -s "https://api.cinevva.com/genai/rig/status/<jobId>" \
  -H "Authorization: Bearer $API_ADMIN_KEY"

Attempt 1 payload:

{
  "modelUrl": "https://cdn.cinevva.com/hunyuan3d/kali-tpose/model.glb",
  "rigType": "biped",
  "outputFormat": "glb",
  "bakeWalkAnimation": true,
  "rotationY": -90
}

Attempt 2 payload:

{
  "modelUrl": "https://cdn.cinevva.com/hunyuan3d/kali-tpose/model.glb",
  "rigType": "biped",
  "outputFormat": "glb",
  "bakeWalkAnimation": true,
  "rotationY": 90
}

Attempt 3 payload:

{
  "modelUrl": "https://cdn.cinevva.com/hunyuan3d/kali-tpose/model.glb",
  "rigType": "biped",
  "outputFormat": "glb",
  "bakeWalkAnimation": true
}

Notes from GLB Diff Analysis

• The source Hunyuan model has one root node with a +90 degree X rotation.
• All rig outputs use an Armature root plus animated skeleton nodes.
• Across attempts 1/2/3 (different pre-rig rotations), bone transforms differ significantly, not just by yaw orientation.
• This means changing pre-rig rotation is not a reliable way to tweak orientation.
• Repeating the exact attempt-1 payload (attempt 4) is highly stable.
• Orientation adjustments should be applied after rigging on a known good output.

Controlled Next Step

Use attempt 1 as the canonical rig because its mesh and pose are stable. Do not rerig again for direction fixes. Fix forward direction in a post-rig step by rotating the rigged output at scene root or by adjusting root-motion direction in the animation track.

Stability Check: Attempt 1 vs Attempt 4

Exact same payload and source mesh:

• Size delta: 52 bytes (30271504 vs 30271556)
• Counts match exactly: 41 nodes, 1 mesh, 1 skin, 1 animation
• Node translations: identical (max diff = 0.0)
• Node scales: identical where present (max diff = 0.0)
• Node rotations: tiny variance only (max delta = 0.0376 degrees, mean 0.0037 degrees)

Conclusion: with fixed input mesh and fixed payload (rotationY: -90), Tripo output is reproducible enough for production.

Stability Check: Attempt 2 vs Attempt 5

Exact same payload and source mesh:

• Size delta: -52 bytes (30271408 vs 30271356)
• Counts match exactly: 41 nodes, 1 mesh, 1 skin, 1 animation
• Node translations: identical (max diff = 0.0)
• Node scales: identical where present (max diff = 0.0)
• Node rotations: tiny variance only (max delta = 0.0414 degrees, mean 0.0011 degrees)

Conclusion: with fixed payload (rotationY: 90), output is also reproducible. So the upside-down issue is consistent with that configuration, not random corruption.