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tyhuang0428 / DreamPhysics

DreamPhysics: Learning Physical Properties of Dynamic 3D Gaussians from Video Diffusion Priors
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Preprocessing of 3D assets #2

Closed RuihanGao closed 4 months ago

RuihanGao commented 4 months ago

Hi,

Thanks for the great work!

I have questions about the 3D assets. In the provided example, ficus comes from a reconstructed scene of Gaussian Splatting; what about the ball example? Is it some 3D asset that we can download from online resources? If so, how did you preprocess it and generate the .ply file with opacity and f_dc parameters?

tyhuang0428 commented 4 months ago

For 3D assets like the ball, we use LGM to generate. The generated ply files have necessary information to be loaded by GS, although spherical harmonics are not included. Besides, the generation quality is unstable, you may also try some latest 3DGS generators if you want to get more realistic assets.

RuihanGao commented 4 months ago

Hi Tianyu,

Got it, thank you so much for the helpful reply and suggestions! I will give it a try.