In A Review of 3D-LUT Performance in 10-Bit and 12-Bit HDR BT.2100 PQ, published in the SMPTE Motion Imaging Journal in March 2020, JD Vandenberg and Stefano Andriani concluded that HDR requires larger LUTs to achieve error-free interpolation comparable to those used for SDR, writing: "Tetrahedral interpolation outperformed all other interpolations for both SDR and HDR... Continue Reading →

According to at least one study, in order to achieve a comparably error-free 3D-LUT to those used for SDR, a LUT size larger than 55x55x55 is required for 12-bit HDR (Rec.2020 ST2084). "In 10-bit SDR, in order to achieve unnoticeable interpolation errors using the trilinear interpolation method, a 3D-LUT larger than 41×41×41 is necessary. However,... Continue Reading →