Turns out luxcore bends light realistically. This was only mesh glass and a spot light. No special nodes or anything. | Blender models, Turn ons, Light
Light Objects — Blender Manual
light - What does the "blend" value do on a spotlight in cycles? - Blender Stack Exchange
cycles render engine - How to setup correctly the spot lamp - Blender Stack Exchange
Light Objects — Blender Manual
Light Object Widgets in the Blender 2.8 Viewport - Tutorial - YouTube
How can a spot light have wider cone? - Materials and Textures - Blender Artists Community
Chocofur Chocofur IES 08 - Free Blender and Cycles IES 08 Light material created by Chocofur! Improve your interior visualization renderings using our Cycles shaders and textures.
Fake spot light for animating - Game Engine Support and Discussion - Blender Artists Community
Blender add-on review: Extra Lights [$] - BlenderNation