Given multi-view images of an exemplar scene, our goal is to construct Gaussian Splatting Wang Tiles (GSWT) that can be tiled on arbitrary surfaces and rendered in real time with our novel GSWT renderer. An overview of the entire pipeline is illustrated below. We begin by reconstructing the 3DGS exemplar at multiple LODs. For each level, we generate a set of Wang Tiles by sampling the edge and center patches and applying a semantic-aware graph cut algorithm. Prior to rendering, we pre-sort each tile for efficient sort-free splatting, and during runtime, we perform tiling on the fly, allowing efficient GSWT-based terrain synthesis and rendering.

(a) Given the input images, we construct the exemplar multiple times with different Level of Detail (LOD).
(b) We construct the tile set and preprocess it before rendering.
(c) The surface is tiled at run-time on the worker thread, while the main thread renders each frame.