{"version":"1.0","type":"rich","title":"Forced Perspective","description":"A hallway constructed from four gradient-filled polygons shifts its vanishing point to follow the mouse. The D3 v4 code uses `d3.scaleLinear` and polygon `attr` transitions to animate the perspective. A second mode uses the WebGazer.js library with `clmtrackr` facial tracking, mapping averaged eye coordinates through `scaleX` and `scaleY` to control the viewpoint via a webcam canvas overlay.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-9309e227a7b756b5667f2933ba0e1e39?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}