Splatter

Inspired by gaussian-splatting but using a somewhat different approach to rendering.

Features

• Correctly computes the perspective projection of ellipsoids by intersecting the bounding elliptic cone with the view plane
• Uses the rasterizer instead of a tiled compute shader
• Rasterizes rotated rectangles instead of axis aligned squares
• GPU depth sorting using onesweep radix sort (except that the block sort is not WLMS because WebGPU does not support subgroup operations yet)
• CPU depth sorting as a fallback
• Frustum culling (optionally using stream compaction via indirect drawing)
• File parser and progressive loading via segmentation in chunks
• Lots of rendering configuration parameters to customize

Dependencies

Dependencies of the Library

• Graphics API: wgpu
• Geometric Algebra: geometric_algebra

Dependencies of the Example

• Window API: winit
• Logging: log

Example

You can download some pre-trained models from the original paper here.

cargo run --example showcase -- models/garden/point_cloud/iteration_7000/point_cloud.ply

Controls

• A / D: Move left / right
• W / S: Move forward / backward
• Q / E: Move up / down
• Z / X: Roll left / right
• Mouse: Pitch and yaw