Let it Snow! Animating 3D Gaussian Scenes with Dynamic Weather Effects via Physics-Guided Score Distillation

Supplementary Material

Please click on the sections below to view our interactive results and ablations:

• Our Results on Dynamic Weather Effects
• Our Results on Creative Text Prompts
• Comparison to 4D Editing Baseline
• Ablations
• SDS-Adaptive Weight Ablations
• Regularization Loss Ablations
• Trajectory Drift Ablations

SDS-Adaptive Weight Ablations

We ablate our SDS-adaptive weighting mechanism by replacing all adaptive regularization weights with constant values across both physics guidance losses and appearance regularization (as shown in Fig. 8). We evaluate the following variants:
- λ=1 - very low constant weight produces severe visual artifacts and noise due to insufficient regularization, resulting in unstable optimization.
- λ=100 - low constant weight shows reduced but still significant noise and color distortions throughout the scene.
- λ=10⁴ - moderate constant weight exhibits unnatural color artifacts with pinkish tones.
- λ=10⁶ - extremely high constant weight over-regularizes the optimization, preventing refinement and producing results where minimal optimization occurs.