renderHeatmapLayersToCanvas()

function renderHeatmapLayersToCanvas(
   scene, 
   canvas, 
   options?
): void;

Defined in: packages/core/src/render/canvas/render-heatmap.ts:22

Paints every heatmap-type layer in a Scene onto a 2D canvas, ignoring every other layer type — the SVG renderer handles those. Backs the canvas at cssSize x devicePixelRatio physical pixels and scales the drawing context accordingly (PRD §8.6), so dense layers stay crisp on retina displays without every painter needing to know about DPR itself.

Does not attempt to composite with the SVG renderer's output — stacking the resulting canvas with an <svg> in the DOM is a consumer concern (eventually @pitchkit/react's), not core's.

Parameters

Parameter	Type
scene	Scene
canvas	HTMLCanvasElement
options	RenderHeatmapOptions

Returns

void