Color calibration in virtual reality for Unity and Unreal.

This work measures the relationship between RUB intensities and the reflected color for each color channel of the HTC Vive Pro Eye virtual reality (VR) headset. The study additionally measured the display spectra of the device and characterized how Unity and Unreal 3D rendering software influences chromatic behavior. The results were compared to measurements taken without rendering software to quantify the pure characteristics of display primaries. A methodology was proposed to carry out a color calibration customized to the type of material or graphics engine used for more accurate and realistic color representation in VR.