When we covered SplatRenderer last week, the plugin’s 4D Gaussian Splatting support stood out as its most forward looking feature. The ability to play back time varying splat sequences with synchronized audio inside Unreal Engine was something no other free plugin offered. What was missing, though, was any connection to UE’s cinematic tooling. You could play a 4DGS sequence, but you couldn’t keyframe it alongside cameras, lights, and traditional assets in a Level Sequence. With v1.1.0, that changes.
There is now a full Level Sequencer integration for the BP_4DGS actor. Artists can now drop a 4D Gaussian Splat sequence onto a Level Sequence and keyframe its core parameters, brightness, splat scale, playback speed, audio volume, and a 3D crop box, right alongside everything else in the scene.
The most interesting new parameter is ScrubFrame. With playback disabled, artists can use keyframes to control exactly which frame of a 4DGS sequence appears at any point in the timeline. This gives frame accurate, non-linear control over volumetric content. Combined with the animated crop box that was already available for spatial masking, the creative control over 4DGS content in UE is now substantially closer to what you get with traditional assets.
The release also includes fixes for sequence rendering artifacts, an editor shutdown crash, and Blueprint property display issues.
