# Inverse Scene Generation

Industrial robots are usually evaluated in episodes that begin from a reset, while factory work is a chain of jobs whose outcomes shape the next one. HolidayFactory 1.0 combines simulation, world construction and evaluation: Holiday-Sim adds constitutive laws, a semi-implicit primal-dual solver and stateful actuators to Newton's sparse-SDF hydroelastic contact, an agentic pipeline generates and verifies assets and scenes, and 24/7-Bench scores seven industrial tasks without resetting the scene, counting completed, failed and unfinished jobs, throughput, latency and motor energy. Evaluation-generation experiments show that passing executable checks does not establish agreement with task intent.

Industrial robots are usually evaluated in episodes that begin from a reset, while factory work is a chain of jobs whose outcomes shape the next one. HolidayFactory 1.0 combines simulation, world construction and evaluation: Holiday-Sim adds constitutive laws, a semi-implicit primal-dual solver and stateful actuators to Newton's sparse-SDF hydroelastic contact, an agentic pipeline generates and verifies assets and scenes, and 24/7-Bench scores seven industrial tasks without resetting the scene, counting completed, failed and unfinished jobs, throughput, latency and motor energy. Evaluation-generation experiments show that passing executable checks does not establish agreement with task intent.