**System Information**
Win 10 (latest) 64bit
Alienware 17 GTX 880M
**Blender Version**
Broken: 2.78.0 702e9c5
Worked: not available
**Short description of error**
The Denoiser will blur sharp reflections at a special direction. The issue will be described in the attached renderings and scene. Higher sample rates will not fix the issue. It looks like there's a bug in the collected scene data for the Denoiser.
**Exact steps for others to reproduce the error**
Use the attached .blend file and compare the renderings (with and without Denoising with 128 samples).
Same result of GPU and CPU rendering.
You will notice the white LEGO bricks are blurred in the red bricks while the floor reflection in the black bricks is correct.
For all materials the Roughness is set to 0.
{F696308}