RasterizeAsync
Wolfram Kernel
RasterizeAsync[expression_, opts___] _Promiseasync version of Rasterize, that returns Promise.
Options
"Window"
By the default it uses CurrentWindow.
"ExposureTime"
Sets the time in seconds for possible async processes to settle down on displayed expression before the rasterization. By the default is 1.
"ImageUpscaling"
Upscales the render canvas by _Integer times. Default value is 1 (no upscaling, it renders as it is)