why refleaction of light on floor I have a area lamp pointing front side with emission of 100 in cycles. Why the shadow or glow on the floor. As show in the image below. I want to have a a glow as seen below but there should be no glow on the floor. Any way for the solution.
The area light is NOT parallel.

The floor is lit by the indirect light. Also the reflection.

Use emission material instead of area light if you like the result in the picture.