Th output_animation collapsed over time

[PolarisXQ]

Hello,

Thanks for your amazing work! I tried the demo and got a nice output_mesh.glb. However, the generated output_animation.glb seems abnormal, the first frame is as good as the output_mesh.glb, but it collapsed over time like this.

Could you please drop me a hint of what has caused this?

Frame0:

Frame5:

Frame10:

[WindVChen]

Hi @PolarisXQ ,

Would you mind sharing your input video so I can reproduce it to see what's going on there?

[PolarisXQ]

Here is the input video and the command i used

python main.py --root example --output results--model Hunyuan --N 1 --n 0 --skip 2 --seed 42 --use_vggt --use_tracking --tracking_camera_radius 8 --blender_path blender-4.2.1-linux-x64/

car.zip

I also tried with the example data you provided in the repo, but still got an undesirable output_animation.glb. So, I think it is not the problem of the data.

[WindVChen]

Hi @PolarisXQ ,

I just got some time to test the Car data you shared, using the same args as yours. Below is my generated output_animation.glb. I didn’t run into any model collapse on my side — did you happen to modify or change any part of the code?

output_animation.zip

[dkotzaitsis]

Is there any update on this? I try with a custon large scene, but the mesh seems to completely collapse after some frames.

[WindVChen]

Hi @dkotzaitsis ,

Would you mind sharing the input video so I can take a closer look at what’s going on?

[dkotzaitsis]

Hi @WindVChen, unfortunately, I cannot share the video publicly due to data restrictions. I will share a screenshot of the collapsed glb, along with the command I've used. I've slightly modified the code, in order to skip the blender part of animating and only keeping the glb files for each frame.
Using this command:

python main.py --root ./inputs/ --output ./results/trial --model Hunyuan --seed 42 --skip 1 --skip_blender --use_vggt
The meshes are good from 01_texture_consistency_sample.glb to 24_texture_consistency_sample.glb and then it totally collapses all the way through 38_texture_consistency_sample.glb. The .glbs from 39 to 67 are completely corrupted and won't even open to any 3D viewer.