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Compressing Gaussian Splats

· 4 min read
Donovan Hutchence
Staff Software Engineer

Introduction

3D Gaussian Splatting is a new method for digitizing and rendering real world objects. With gaussian splatting, you can digitize a scene from a few photos using services like Luma Labs or Polycam. These services take the set of photos and generate a 3d Gaussian Splat scene in PLY format.

For example, this is a Gaussian Splat scene rendered in PlayCanvas.

Basis Texture Compression arrives in PlayCanvas

· 3 min read
Steven Yau
Partner Relations Manager

PlayCanvas implemented the fantastic hardware texture compression workflow in 2016 which allowed users to build bigger and better WebGL apps, even on low memory devices like mobile phones.

JPGs and PNGs are great formats for transmission over a network because they tend to compress nicely. But once the images are downloaded and handed over to WebGL, they must decompressed to raw RGB(A) data. Using hardware compressed textures is important as decompression is performed in silicon on the GPU which avoids the need to utilize lots of memory.