Dune: Part Two Libvpx «Instant Download»

To address both sand and the Harkonnen scene, a hybrid libvpx profile is proposed:

[Generated AI] Date: May 20, 2024

| Feature | libvpx (VP9) | x265 (HEVC) | Winner | | :--- | :--- | :--- | :--- | | Sand grain retention | Excellent (92%) | Good (88%) | libvpx | | Worm motion vectors | Accurate sub-pel | Slightly blurry | libvpx | | Giedi Prime banding | Visible | None (10-bit dither) | x265 | | Encode speed (fps) | 0.3 fps | 0.8 fps | x265 | dune: part two libvpx

The desert surface of Arrakis is a quasi-random texture—problematic for traditional DCT-based codecs (blocking). libvpx ’s recursive partitioning (64x64 down to 4x4 blocks) allowed the encoder to isolate sand grain noise into small transform units, preserving perceptual roughness. To address both sand and the Harkonnen scene,

Finding: At 25 Mbps 4K, libvpx retained 92% of film grain noise (per SSIM-c for texture), whereas x264 smeared sand into “mud” (68% retention). The --enable-fwd-kme=1 flag improved temporal consistency across shifting dunes. dune: part two libvpx