Changes

===Shadow Phosphor Mask Phosphor Emulation===Hypothetical At the frontier of CRT shader development has been phosphor mask emulation. As stated previously, there are three overarching mask types: aperture grilles, shadow mask phosphor shaders masks and slot masks. Aperture grilles were used primarily by Sony TVs, professional displays and PC monitors (with a few other brands such as PhosphorLUT Mitsubishi releasing their own version after Sony's Trinitron patent expired in the late 90's), shadow masks by the majority of PC CRT monitors from the late 80's onwards, and slot masks by just about every non-Sony consumer-level CRT-Royale are being developedTV, the vast majority of arcade monitors, and very early home computer/PC monitors. A key part of CRT emulation, then, depends on accurately replicating the look of these masks. However, even within each of these mask types, there is a lot of variance, as some CRTs were much sharper and were able to resolve a lot more detail than others. Due This is encapsulated in a specification known as TVL, or television lines, defined as the number of vertical white lines a mask can resolve along the horizontal dimension in a stretch equal to the nature height of the shadow mask tube's viewable area (this means TVL is calculated by measuring the screen's height, 4K resolution then counting the number of resolved lines across a horizontal span equal to that height, not across the entire length of the screen). A higher TVL count is likely needed the result of higher phosphor density and results in a sharper, more detailed image, as well as more prominent scanlines in low-res content. Most consumer-level CRTs had a relatively low TVL count, whereas professional monitors such as Sony's PVM and BVM series had much higher TVL. In PC monitors, the usual specification to avoid significant downsampling determine sharpness was instead dot pitch, or the distance between two phosphors of the phosphorssame color. The lower the dot pitch, the sharper the monitor and the more detail it could resolve. Taking into account the three mask types and the variance in TVL and dot pitch, then, along with many other variables, it is no wonder no two CRTs looked alike.