Version 1.6.1

Added line lights and capsule lenses, full-area light beams

Added

• Long spot-light lenses: AreaLightShapeRegistry.set(SpotLightData, focus, lensRadius, lensHalfLength) stretches the round lens into a capsule along the light's local x axis (e.g. fluorescent tubes); surfaces and light beams are lit from the whole length
• Area lights with an angle of 360 degrees (2 pi) shine evenly in every direction from their rectangle, so a line light needs one light instead of two back-to-back 180 degree lights

Changed

• Area lights with a 180 degree angle now fade out towards their back like in Veil's own renderer (smooth falloff over the angle to the normal) instead of shining fully in every direction; two of them back to back form an even line light (used by L?YM! for rows of light tubes)
• Light beams of area lights now come from their whole rectangle (before: from its center point); round spot lenses still shrink to their center for beams (see the flashlight snow fix), capsule lenses to their center line