The project introduces a method that integrates physically grounded Newtonian dynamics within 3D Gaussian kernels to achieve high-quality novel motion synthesis. It employs a customized Material Point Method (MPM) to enrich 3D Gaussian kernels with kinematic deformation and mechanical stress attributes evolved according to continuum mechanics principles. A key innovation is the seamless integration between physical simulation and visual rendering using the same 3D Gaussian kernels as discrete representations, eliminating the need for meshing or geometry embeddings. The method demonstrates versatility across elastic, plastic, non-Newtonian fluids, and granular materials.