TL;DR
Blender 5.3 adds native support for 3D Gaussian Splats, which can be imported from PLY, SPZ and glTF files, processed as point clouds and rendered in EEVEE, Cycles and Workbench solid mode. The release also introduces updates to Cycles, EEVEE, the compositor and Geometry Nodes; Blender notes that Gaussian Splat performance is still being optimized.
Blender 5.3 has been released with native support for 3D Gaussian Splats, allowing users to import splat data from PLY, SPZ and glTF files, work with it as point clouds and render it using EEVEE, Cycles or Workbench in solid mode. The change brings a workflow used to reconstruct scenes from photos and videos into Blender, while the release also adds rendering, shading and compositing features.
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Blender’s release page says Gaussian Splats are stored as a distinct type of point cloud with attributes for each splat’s scale, rotation, radiance and opacity. Users can process the data with Geometry Nodes and preview it in Workbench, as well as render it in the EEVEE and Cycles engines. By default, Blender renders a splat with an emissive shader.
The software also has rudimentary support for making splats relightable by replacing the default Emission node with a hard-surface shader such as Diffuse BSDF. Blender cautions that performance is still being optimized. The release page also warns that color differences between the sRGB space used by many splat-creation tools and Blender’s linear color space can cause rendering inaccuracies, particularly where opacity is low and radiance is high.
Other changes include dispersion in Cycles’ Principled BSDF, which can reproduce rainbow effects in glass and gemstones, and anisotropy support for the Glass BSDF and the Principled BSDF’s transmission component. Cycles also gains NVIDIA DLSS 4.5 Ray Reconstruction as a denoiser, which the release page says reuses samples from earlier frames and requires NVIDIA driver version 620 or newer.
Gaussian Splats Enter Blender Workflows
Native support lets artists bring Gaussian Splat scene reconstructions into Blender without treating the data only as an external viewing step. Being able to import, inspect, process and render splats in the same application may make it easier to combine reconstructed scenes with Blender objects, materials and production workflows. Geometry Nodes support also gives users a way to manipulate the splat point-cloud data inside Blender.
The feature is not presented as a finished, limitation-free rendering path. Blender flags ongoing performance work and possible color inaccuracies, and its stated relighting support is rudimentary. Those caveats matter for artists evaluating the release for production: results may need testing against their source files, color pipeline and target renderer.
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How Blender Handles Splat Data
Gaussian Splats represent a scene with many small, soft, transparent blobs whose combined appearance can describe complex geometry and shading. They are commonly used to reconstruct three-dimensional scenes from photographs or video. In Blender 5.3, each splat is represented through point-cloud data and additional attributes, including a scale vector, a rotation quaternion and radiance values.
The release’s support covers PLY, SPZ and glTF imports, plus rendering in three Blender options: EEVEE, Cycles and Workbench solid mode. The release page lists several other changes beyond splats. EEVEE can render panoramic cameras, including equirectangular, cubemap and fisheye projections, though the initial implementation does not support depth of field, ray tracing or viewport volumetric temporal reprojection. Blender also adds a Compositor Effects tab with stackable effects such as Bloom, Chromatic Aberration, Film Grain and Vignette.
“Performance is still being optimized.”
— Blender 5.3 release notes
Performance and Color Limits
The release information does not quantify Gaussian Splat rendering performance or specify how results vary across hardware and file sizes. It also does not provide a timeline for further optimization. Blender warns of potential color inaccuracies tied to differences between source tools’ sRGB color space and Blender’s linear color space, but does not describe a universal correction that resolves them.
Relighting is described as rudimentary, and the release notes do not establish how well it works across different splat assets or lighting setups. The supplied material also does not state the release date, list the supported versions or limitations of every import format, or give benchmarks for the new DLSS denoiser.
Testing the New Rendering Tools
Users can download Blender 5.3 through the Blender release page and test the new import and rendering workflow with their own PLY, SPZ or glTF assets. For production use, the release notes’ stated caveats make it worth checking performance, color behavior and relighting results in the intended project before relying on them.
Blender’s announcement does not set out a specific follow-up date for Gaussian Splat optimization. Further details about performance improvements or changes to the feature will depend on subsequent Blender updates and documentation.
Key Questions
What is new for Gaussian Splats in Blender 5.3?
Blender can import Gaussian Splats from PLY, SPZ and glTF files, represent them as point clouds, process them with Geometry Nodes and render them in EEVEE, Cycles and Workbench solid mode.
Can Blender 5.3 relight Gaussian Splats?
Blender describes relighting support as rudimentary. Users can try replacing the default Emission node with a hard-surface shader such as Diffuse BSDF, but the release notes do not promise consistent results for all assets.
What limitations does Blender report?
The release notes say Gaussian Splat performance is still being optimized and warn of possible color inaccuracies caused by differences between sRGB authoring tools and Blender’s linear color space. They single out areas with low opacity and high radiance.
What other major features are in Blender 5.3?
The release adds Cycles dispersion and NVIDIA DLSS 4.5 Ray Reconstruction denoising, panoramic camera rendering in EEVEE, stackable compositor effects and 17 Geometry Nodes supported in the Compositor, among other changes.
Source: blender.org
