nx_explodelab_material_gate.nx

nx_explodelab_material_gate.nx -- teeth on R-V6 PER-PART MATERIALS + the DEPTH CUE. A material system fails quietly in two ways: the table is filled in but every entry is effectively the same (nothing differentiates, yet "materials" ships), or the per-vertex material id never reaches the rasteriser so the table is dead data. Both look GREEN to any "does it render" check. So: prove the table is differentiated, prove the id survives into the vertex data, prove metal and dielectric highlights behave DIFFERENTLY, prove depth actually attenuates, and prove the frame changes when materials are flattened to one. expect_exit: 0 license_tier: ORIGINAL