Window depth of the current fragment from its interpolated clip zw, remapped per coordinate system at graph-build time (the builder knows the renderer; the graph factories do not, and the same factory serves native WebGPU and the WebGL2 fallback).
zw
Private
Readonly
Build the window-depth expression for this renderer: z/w under the WebGPU coordinate system, z/w * 0.5 + 0.5 under WebGL's.
z/w
z/w * 0.5 + 0.5
Window depth of the current fragment from its interpolated clip
zw, remapped per coordinate system at graph-build time (the builder knows the renderer; the graph factories do not, and the same factory serves native WebGPU and the WebGL2 fallback).