[新闻] DF：PS4P/X1X在1080输出设备下的运行情况和假HDR的分析

1080p SSAA On/Off:

- XBX: Native 4K is down sampling when running at 1080p. No difference or extra modes between 4K/1080p.
  X1X在1080p输出设备上依然是本地4K渲染，没有差别
- PS4 Pro: RDR2 *does* have different modes.
  PS4PRO有不同的模式存在
- At 4K: 2160p w/ reconstruction which can break down in motion and resolve to 1920x2160
  4K输出下分解后分辨率实际为1920X2160
- When connected to 1080p TV: Native 1080p when Super Sampling mode is disabled.
  当连接1080输出设备后:关闭超采样时以原生1080P运行
- SSAA off: Stacked up side to side, there is an argument that in some case native 1080p can produce a sharper image than SSAA on.
  存在某些情况超采关闭的时候原生1080P可以输出更加清晰锐利的画质
- SSAA On: Visual advantages like elimination of dithering on hair etc.
  超采开启：在毛发的抖动消除等情况下有优势
- SSAA off: Locked 30 FPS in all cases. In either case, however both SSAA on/off is better than base PS4 in terms of performance.
  超采关闭时能够完全锁定30FPS，然而不管超采开启还是关闭性能表现都比原版PS4好
- 4K reconstruction has looked better in other games and DF hopes R* revisits and works upon the implementation in RDR2.
  4K的插值重建在别的游戏里看起来要更好，DF希望R星能够继续提升此部分的品质。（看来这回PRO的IQ确实是搞砸了）

HDR部分我就不乱翻了，大致就是SDR，亮度峰值没超过500nit之类的
HDR:

- Shout out to EvilBoris
- RDR2's HDR does not exceed 500 nits
- Basically SDR image in HDR container
- Looking at 8 bit image remapped in 10 bit space
- Peak brightness is locked to the whitest element, aka the HUD, it can cause burn-in issues on some displays.
- Video goes in comparisons with AC Odyssey's HDR as HDR done right.