Pointrix: a differentiable point-based rendering libraries

Over the past year, significant progress has been made in differentiable point cloud rendering techniques, represented by 3D Gaussian splatting. This report will introduce Pointrix, a differentiable point cloud rendering optimization framework developed by our research group. Pointrix consists of a modular Python API, an efficient CUDA backend, and a user-friendly real-time rendering GUI interface, making it an open-source framework for point cloud rendering that is easy to extend. Pointrix offers detailed quick-start guides and rich example configurations, allowing users to implement specific algorithms by making changes at the Python level. It provides researchers with a portable environment for secondary development. Additionally, Pointrix supports a range of mainstream 3DGS-related work, offering strong support for research and applications in the field of differentiable point cloud rendering.