Terrain contact field
Drive the field
Drive the rover to the landing pad. The GPU displaces lit sand through the TSL backend while four CPU wheel probes sample the same dunesField for height and attitude. Inject a stale proxy to feel the worlds separate.
Field instruments
Drive
The benefit: visual displacement and gameplay contacts come from one authored field. The proxy toggle is an explicitly injected failure, not a competing implementation benchmark. Triangle interpolation between rendered vertices remains a separate geometry budget.