LichtFeld-Studio releases LPIPS v0.1 weights based on VGG16

LichtFeld-Studio has released LPIPS v0.1 VGG16 weights. This is a permanent model asset in the native .lfw format used by the LPIPS metric evaluator, not an application release. The author marked it as pre-release only to keep it out of the Latest badge. Details are in the release description on GitHub.

What it means

LichtFeld-Studio is an open-source 3D generator under the GPL-3.0 license, written in C++ and designed for CUDA 12.8+. The application is intended for training, inspecting, editing, and exporting 3D Gaussian Splatting scenes, and also supports export to PLY, SOG, SPZ, and a standalone HTML viewer. The LPIPS weights release concerns the internal quality evaluator: the LPIPS metric is used to compare rendered images with reference ones during scene optimization. The release description lists two component sources: linear layers from richzhang/PerceptualSimilarity LPIPS v0.1 under the BSD-2-Clause license, and the backbone is torchvision vgg16 with IMAGENET1K_V1 weights under BSD-3-Clause. The file is reproducible via the tools/nn_export/export_lpips_weights.py script, and the file header records the SHA-256 of both sources. These weights were not mentioned in our tool fact sheet: the tool page only describes the application code, platform, and export formats. Now LichtFeld-Studio has a separate model asset that can be downloaded independently of application releases. For users who build the project from source and want to reproduce LPIPS evaluation, this removes the need to export weights from PyTorch sources themselves.