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|Session Name:||Physically-Based Calibration: Accurate Material Production in 'Forza Horizon 4'|
|Company Name(s):||Playground Games|
|Track / Format:||Programming|
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|Overview:||With 'Forza Horizon 4', Playground Games has developed a novel Physically-Based Calibration (PBC) pipeline based on spectrophotometry to match game appearances of nearly 900 real-world automotive paint materials with unprecedented accuracy. Overcoming a major challenge in computer graphics, the new method is inspired by the color management technologies in the automotive industry and can be easily adopted to a wide range of material representations in a variety of rendering systems.Rooted in previous studies in spectrophotometry and colorimetry, the new calibration method scientifically eliminates most systematic errors in material reproduction and can reliably find the most optimal shading model inputs accurately reproducing the real-world 'ground truth' material appearances. The new Physically-Based Calibration technology is believed to be a significant breakthrough. It carries important implications for the future of accurate material reproduction in virtual environments.|