Support Cinema 4D R2023 and above
Octane 2023+
Octane Area Light
Texture and Distribution shader
Vray 6+
Rectangle light texture
Corona 12+
Rectangle and circle light
light shader
Can not access All Vray shaders, (VrayBitmap, VrayRamp, VrayLayered e.t.c)
Just simply add this tag on to your light, then add some shader you want, and you'll see it in the viewport.