SplatData class Gaussian splatting

The CPU-side contents of a Gaussian splat set as flat, index-parallel arrays (one entry per splat).

The seam between the file parsers, procedural construction, and the renderer. Parsers produce a SplatData, and GaussianSplats packs one into GPU textures.

Constructors

SplatData({required int count, required Float32List positions, required Float32List scales, required Float32List rotations, required Float32List colors, required Float32List opacities, Float32List? sh, int shDegree = 0})

Wraps existing arrays without copying. Every array's length must match count times its per-splat stride.

SplatData.zeroed(int count, {int shDegree = 0})

Allocates a zero-filled splat set for count splats, for callers that fill the arrays in place (procedural construction).

factory

Properties

colors → Float32List

Base RGB color per splat, the evaluated degree-0 spherical-harmonic term, in the file's SplatColorSpace.

final

count → int

The number of splats.

final

hashCode → int

The hash code for this object.

no setter, inherited

opacities → Float32List

Opacity in 0, 1 per splat (parsers apply the training sigmoid).

final

positions → Float32List

Splat centers in local space, x, y, z per splat.

final

rotations → Float32List

Unit orientation quaternions, x, y, z, w per splat.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scales → Float32List

Per-axis Gaussian standard deviations in local units (already linear; parsers apply the training log-space exp), x, y, z per splat.

final

sh → Float32List?

Rest (degree >= 1) spherical-harmonic coefficients, or null when shDegree is 0.

final

shDegree → int

The highest spherical-harmonic degree carried by sh (0, 1, or 2).

final

Methods

computeBounds({double sigmaPadding = 3.0}) → Aabb3?

Computes the axis-aligned bounds of the splat centers, each padded by sigmaPadding times the splat's largest axis scale so the visible footprint stays inside the box.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

shRestCoeffCount(int degree) → int

Rest (beyond degree 0) SH coefficients per splat and channel, 0 at degree 0, 3 at 1, 8 at 2.