I would like to suggest an option for 180 degrees or 360 degrees fixtures.
For Example Astera AX1 or similar LED Tubes. 
We have a lot of designs with 2meter long 360 degrees LED tubes which does not simulate well in Capture. 
I know I can make a cylinder and map a RGB Texture to it but with 500 LED Tubes it is a lot of work and it makes Capture slow.