The film includes over 2000 visual effects shots. Visual Effects Supervisor Paul Lambert said they used a “sandscreen” chroma key process (using browns and yellows) rather than green screen as this created more a more natural final visual.

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For Part Two a giant sandscreen "dog collar" was created for the worm riding scenes (first pic).

Satellite imagery of the #DunePartThree set appears to show a similar setup, presumably used in the worm sequences seen in the trailer.

A dutiful baby bat applies sandscreen to her goth mother

Sand screens are essential for preventing formation sand from damaging downhole equipment, extending well life in unconsolidated reservoirs.
#SandScreen #WellCompletion #OilAndGas #ProductionOptimization www.marketresearchfuture.com/reports/sand...