GaussianGradients

Where the gradients go: one entry per parameter of every Gaussian.

interface GaussianGradients

import type { GaussianGradients } from '@driftengine/capture';

Properties

Name	Type	Description
`positions`readonly	`Float64Array`	Three per Gaussian.
`scales`readonly	`Float64Array`
`rotations`readonly	`Float64Array`	Four per Gaussian, xyzw.
`colors`readonly	`Float64Array`
`sh1`readonly	`Float64Array`	Nine per Gaussian, and left at zero for a cloud with no band to fit.
`screen`readonly	`Float64Array`	The gradients as the screen sees them, nine per Gaussian: the two of its centre in pixels, the three of its screen covariance, its opacity, and its resolved colour. More Everything else here is a chain rule away from these. They are kept because the tiled device rasteriser computes exactly this much and nothing further — the projection and the band are per-splat work that is not worth a dispatch — so this is the surface `scripts/gpu-parity.mjs` holds the two rasterisers to.
`opacities`readonly	`Float64Array`	One per Gaussian.