3D Gaussian Splatting — a real-time radiance-field rendering technique that originated as a 2023 SIGGRAPH paper — has since exploded into a full ecosystem of capture tools, editors, and game-engine plugins, which paradoxically makes it harder for a newcomer to know where to actually start. Where to Start with 3D Gaussian Splatting in 2025, from Pixel Reconstruct, is built specifically to solve that entry-point problem rather than teach any single tool in isolation.
What to watch
The video maps the actual pipeline a first splat scene requires: capturing source footage or photos of a real subject or space, processing that capture into a point cloud and camera poses, and training the Gaussian splat representation from that data before it’s viewable or exportable. Rather than diving into the mathematics behind how Gaussian splats represent a radiance field, it stays focused on the practical, tool-level decisions — what to capture with, what software actually trains a usable splat, and where the current rough edges are.
Why this technique moved so fast from paper to practice
Gaussian splatting’s jump from a single SIGGRAPH paper to a full creative-tooling category in roughly two years is unusually fast even by graphics-research standards, and the reason is mostly about what it trades away: unlike neural radiance fields (NeRFs), which require a neural network forward pass per rendered pixel, Gaussian splats render through comparatively simple rasterization, making real-time playback on consumer hardware achievable almost immediately rather than years later. That performance headroom is exactly what opened the door to the game-engine and real-time-viewer integrations covered at this year’s SIGGRAPH Experience Hall.
Where to go next
Once a first splat scene trains successfully, the next decisions are about output: cropping and cleaning the point cloud, converting to a mesh if a game engine needs traditional geometry rather than a native splat renderer, and choosing an export target — Unreal Engine and Unity both have maturing splat-import pipelines as of 2026. From there, the aesthetic possibilities open up fast: splatting has become a genuine medium for generative and installation artists working from real-world capture, not just a photogrammetry replacement for VFX pipelines.