Because H.264 has had nearly two decades of refinement, its handling of grain is predictable. There is no "wax museum" effect here. The macroblocking is virtually non-existent in the skin tones of Hart’s sweaty, sleepless face during the film’s infamous 12-minute monologue in Act 2. The encoder preserves the psychological grain —the sense that the film stock itself is disintegrating under the pressure of the plot.
The Framechaser
Let’s be real: Why not H.265? Voss’s team claims it was for "accessibility" (ensuring the film plays on a 2013 laptop). But watching GrayMail on a 4K OLED, I felt the strain. Action scenes (there are only two, but they are jarringly fast) reveal H.264’s weakness: during a sudden cut from a static room to a shaky-cam sprint, the bitrate spikes and you can see a split-second of blurring in the trailing edge of the motion. graymail h264