Blender 5.3 Imports 3D Gaussian Splatting Natively and Speeds Up the Viewport with DLSS 4.5

If you have ever tried to drag a neural-network scan into a proper 3D scene, you know how it usually goes. You shoot an object on your phone, get a beautiful 3D Gaussian Splatting in a standalone viewer, and then the zoo begins: converters, third-party add-ons, manual cleanup. In Blender 5.3 that zoo shrinks noticeably: splats have become full citizens of the program.

Splats as ordinary scene data

A quick note on the technology. 3D Gaussian Splatting represents a scene not with polygons but with a multitude of semi-transparent "blobs" (Gaussians). Each has a position, size, rotation and color. Thanks to this, real objects and interiors look photorealistic while rendering quickly.

Blender 5.3 imports such scenes from PLY, SPZ and glTF files. Internally they are stored as specialized point clouds. Scale vectors, rotation quaternions, base color and spherical harmonics coefficients are preserved. The latter control how a blob's color changes depending on the viewing angle. They are what produce the very highlights and iridescence that make splats look "alive".

Most importantly, splats can now be controlled procedurally through Geometry Nodes. You can, for example, filter out the "noise" around an object, cut away the excess with a mask, or animate the scene disintegrating into particles. The result can be displayed everywhere: from Workbench to the final render in EEVEE and Cycles. In addition, the base shader can be replaced with a full BSDF. The scene then gets physically correct relighting, which is one of the main pain points of scans: the light in them is "baked in" at the moment of capture.

DLSS 4.5 and materials

The second notable part of the release is about speed. Cycles gained support for DLSS 4.5 Ray Reconstruction for viewport denoising on NVIDIA cards. According to the release description, thanks to temporal sample reuse and neural upscaling, responsiveness comes close to EEVEE, but with the ray-tracing accuracy of Cycles. Frame flicker during animation playback also disappears. For an animator this matters more than it seems: you can judge lighting and materials in motion without waiting for a test render.

Principled BSDF gained physical light dispersion following the OpenPBR v1.1.1 standard and glass roughness anisotropy. For visualizing jewelry, optics and glass products, this means fewer hacks with manual color separation. EEVEE gained Material Lighting nodes: they let you precisely control how a material reacts to individual light sources. EEVEE also now supports panoramic Fisheye cameras.

The rest: projects, compositor, editing

The core debuts an optional Projects system. It ties asset libraries, pipeline variables and color settings into a single context beyond individual .blend files. For studios and teams, this is a step toward replacing what used to be handled by homegrown scripts and folder conventions.

The compositor gained an effects stack for quickly applying Bloom and Chromatic Aberration without a spaghetti of links, as well as 17 compute nodes. The Anisotropic Kuwahara filter is accelerated up to 10 times on Apple Silicon. Grease Pencil gained Carver boolean cutting, and the VSE video editor gained a ripple editing framework.

Limitations and what to do

The release has caveats. DLSS 4.5 only works on NVIDIA graphics cards, so owners of other GPUs won't benefit. The Projects system is optional, and its value will show in a team rather than for a solo freelancer. The release description relies on a retelling in Telegram, so you need to verify the real speed and splat quality on heavy scenes yourself.

The practical takeaway is simple. If you work with photogrammetry, NeRF and splat scans, virtual production or AR content, it's worth running your scans through the new import and seeing how many intermediate tools you can throw out. If you do product rendering, try Cycles with DLSS 4.5 in the viewport. And for product managers building tools around 3D capture, it's worth noting: the free industry standard now understands splats natively, and this lowers the barrier to entry for everyone around it.