Generic exponential history blend for WebGL2: blends the current frame with a ping-ponged
history buffer holding the previous frame's resolved result. Shared by two different
effects that both reduce to "blend with last frame's output" -- TAA (TaaElement, current
frame is jittered, low feedback) and the deliberate MotionTrailElement ghost/afterimage
look (current frame is not jittered, high feedback). No motion vectors either way, so this
only reads as clean anti-aliasing in static/slow scenes for the TAA case.
Generic exponential history blend for WebGL2: blends the current frame with a ping-ponged history buffer holding the previous frame's resolved result. Shared by two different effects that both reduce to "blend with last frame's output" -- TAA (
TaaElement, current frame is jittered, low feedback) and the deliberateMotionTrailElementghost/afterimage look (current frame is not jittered, high feedback). No motion vectors either way, so this only reads as clean anti-aliasing in static/slow scenes for the TAA case.