The browser-based Gaussian Splatting renderer previously known as Forge has officially been renamed to Spark, now living at sparkjs.dev. While the offering remains the same, this rebrand comes with a much more fitting name for what Spark hopes to enable: fast, lightweight, and interactive 3DGS experiences that ignite new kinds of creativity on the web.

The name change itself was prompted by a collision with another graphics company using the Forge name. From a developer’s perspective, thankfully, the transition should be smooth. Any existing projects using @forge-gfx/forge will continue to function without issue. To upgrade, simply update your package reference to @sparkjsdev/spark and adjust class names to match the new Spark naming: SparkRenderer, SparkViewpoint, and SparkControls. Otherwise, everything works as it did before.

With the release of Spark, World Labs also unveiled a WebXR experience named LofiWorlds.ai, showcasing some of their generative Gaussian Splatting worlds. Built during Spark’s development, this demo offers a glimpse at what their generative worlds can look like when combined with WebVR and hand tracking.

Inside the experience, users can explore a preset list of generated worlds. One of the less appreciated abilities of gaussians is the ability to translate and manipulate individual gaussians. This appears to be taken advantage of in both vegetation and the trees rippling as if being blown by a gentle breeze. It’s very cool to experience the effect within VR and helps bring people into these environments. Additionally, the view dependent effects of radiance fields are also on display in VR, adding to the realism. Enabling hand tracking allows you to physically "touch" and move through the floating splats

Spark remains MIT licensed, open-source, and developer-friendly. You can explore Spark, its docs, at sparkjs.dev. its WebXR experience can be accessed at lofiworlds.ai.