Fr0zka
f537648867
First build of the spatial EffectOverBox came back green with 0 tiles proved of 40. The warning written for exactly that case fired, and then was not good enough: it offered two candidate causes and BOTH were wrong. The real one was a third operator neither candidate mentioned. FWormFieldSource answered CarveOnly unconditionally with a provably correct amplitude bound of WormStrength. But BaseDensity = 8 and WormStrength = 10 are the DEFAULTS -- the field's own comment requires the worm to exceed BaseDensity or it could never carve air. So SolidMargin = 8 - 10 < 0 on every tile of every strate with worms on, before the fold reached anything the room source proved. A numerically correct bound that is structurally always fatal. The fix was already written three lines up in the worm's own Eval: NetworkMask is 0 when CaveSDF >= WormNetworkRange, which FLT_MAX always satisfies. The worm IS spatially bounded -- by the room source's bound, exactly like the twelve detail modifiers -- so where the source proves Identity it does not execute at all. Thirteen inheritors instead of twelve. Verified FVoxelOpSample::Sdf really does initialise to FLT_MAX rather than assuming it; the inheritance inverts into a hole otherwise. Deliberately NOT VF_NoCaveOverBox: that helper answers "identity" for a null Rooms, correct for the twelve modifiers and wrong for an op a future assembly could place behind a different SDF writer. No room source means we do not know, which must cost CPU rather than a hole. And the instrument, because the guess is the thing that cost a build: a diagnostic that lists candidate causes without measuring them is still a guess wearing rigour. FVoxelOpStack::ClassifyBoxAttributed reports the index of the first op that kills each hypothesis -- same loop, same early-out, verdict identical to ClassifyBox, because a diagnostic that takes a different path than the thing it explains sends you hunting in the wrong place. IVoxelDensityOp::DebugName gives them names and touches no cache key, so it cannot change the world. Check 4 now always prints "AllSolid killed by: <op> xN", and the zero-proved warning says to read it instead of re-deriving. Unbuilt. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>