I don't have 21 Deluxe, but I believe the rendering options are the same as with 21 Pro Platinum.
Right-click on the Model space and then right-click again on Advanced Rendering.
Under Rendering Type, select LightWorks.
Under Category, select Sketch.
Under Render Style, start experimenting with the options to see if there's anything you want to use.
TC Pro Platinum 2019, 2018, 2017, 2016 & 2015 (all with LightWorks & RedSDK) & V21
System: i7-5820K @ 3.30GHz, ASRock X99 Extreme4, 16GB DDR4-2133 RAM, Gigabyte GTX 970, Samsung NVMe SSD 950 (256GB), Windows 7 Pro (64-bit) SP1