Project a node-local radius into logical CSS pixels. The caller divides the
accepted radius by sqrt(lodBias) because the public bias remains an area
factor while this metric is a length.
The vertical scale is the projection's own P[1][1] (elements[5]), the
term the shaders size geometry with: 1 / tan(fov/2) for a plain
perspective camera, 2 / frustumHeight for an orthographic one, and in
both cases including zoom and setViewOffset. Only a
perspective or orthographic camera has a footprint; any other returns null.
Project a node-local radius into logical CSS pixels. The caller divides the accepted radius by
sqrt(lodBias)because the public bias remains an area factor while this metric is a length.The vertical scale is the projection's own
P[1][1](elements[5]), the term the shaders size geometry with:1 / tan(fov/2)for a plain perspective camera,2 / frustumHeightfor an orthographic one, and in both cases includingzoomandsetViewOffset. Only a perspective or orthographic camera has a footprint; any other returns null.