Splatting

The Splatting plugin implements loading, processing, and real-time rendering of Gaussian Splatting models using GPU compute pipelines. It enables fast, high-quality rendering of dense point-based geometry, making it ideal for reconstructed or neural scene representations.

The plugin provides the SplattingModel interface for importing and exporting models in both *.ply and an optimized internal *.spl format. The PLY importer supports transformations, spherical harmonics (SH) for rotated color lobes, and optional clipping using arbitrary planes.

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Rendering is executed via compute shaders and injects depth, normal, and color textures into the RenderFrame, allowing integration with other scene geometry and lighting for seamless compositing.

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The Splatting plugin creates a MaterialBase material to inject custom compute dispatches into the rendering pipeline.

#include <objects/splatting/include/TellusimSplatting.h>

Example

// Create splatting interface
Splatting splatting;
splatting.setOverdraw(16);
if(!splatting.create(device, splatting_graph, 3, 6)) return false;

// Load the splatting model
if(!splatting.load(device, "point_clount.ply")) return false;
TS_LOGF(Message, "Groups: %u\n", splatting.getNumGroups());
TS_LOGF(Message, "Points: %u\n", splatting.getNumPoints());

// Injection parameters
splatting.setAlphaThreshold(alpha_slider.getValuef32());
splatting.setEmissionScale(emission_slider.getValuef32());
splatting.setDiffuseScale(diffuse_slider.getValuef32());
splatting.setNormalScale(normal_slider.getValuef32());
splatting.setRoughnessValue(roughness_slider.getValuef32());
splatting.setMetallicValue(metallic_slider.getValuef32());

Example​

Example