[Bug] ColumnLayer does not work as expected with radiusUnits: 'pixels'

[blip-oscar]

Description

The ColumnLayer columns with pixel radius are larger than expected and does not stay the same size while zooming.

Flavors

• Script tag
• React
• Python/Jupyter notebook
• MapboxOverlay
• GoogleMapsOverlay
• CARTO
• ArcGIS

Expected Behavior

Expected behavior is to follow the unit spec for pixels.

Steps to Reproduce

Use the ColumnLayer codepen and change the radiusUnits to 'pixels'.

Suggested solution:

Add the following lines to column-layer-vertex.glsl.ts at line 67 (just after the UNIT_METERS check)
else if (column.radiusUnits == UNIT_PIXELS) { offset = project_pixel_size(offset); }

Environment

• Framework version: deck.gl@9.2.2
• Browser: Edge 144.0.3719.82
• OS: Windows 11

Note: same result on Android 16

Logs

No response

[ipearx]

I ran across this the other day too. In the meantime I'm getting the zoom level from mapbox and using that.

		const zoom = window.map.getZoom();
		const radius = Math.pow(2, 22 - zoom) * .000001;
		return new ColumnLayer({
			id: 'ColumnLayer',
			data: points,
			diskResolution: 4,
			extruded: true,
			radius: radius,
			radiusScale: 1,
			radiusUnits: 'pixels',
			flatShading: true,
			getElevation: d =>  { return (d.alt - d.glWithDEM - 10)  * uiSettings.altExaggeration },
			getFillColor: d => [d.colourRGB[0],d.colourRGB[1],d.colourRGB[2],128],
			getPosition: d => [d.long, d.lat, d.glRendered * uiSettings.altExaggeration],
			pickable: true,
		})