Width to bake for a material about to draw texture: the texture's
own width when a real one is bound (bind-time authority — see
applyElementTextureWidthDefine), else the session width
(constructor pre-stamp / placeholder phase, whose draws are empty).
The TSL factories call this at graph build — the texture node is
factory-time bound and a rebind rebuilds the graph, so the literal
always matches the texture the graph will sample.
Width to bake for a material about to draw
texture: the texture's own width when a real one is bound (bind-time authority — see applyElementTextureWidthDefine), else the session width (constructor pre-stamp / placeholder phase, whose draws are empty). The TSL factories call this at graph build — the texture node is factory-time bound and a rebind rebuilds the graph, so the literal always matches the texture the graph will sample.