The Bloom sample default settings are too intense

[LB-TomaszSerwanski]

Describe the bug The Bloom sample looks exaggerated. Most of the color bars are white while they should be more diverse, with preserved color shades, progressively brighter from left to right.

Additionally, the default Bloom settings seem to be too strong, as enabling Bloom without changing these, results in the entire Viewport being overblown to the point of showing a white screen.

Please refer to the attached video for more details.

Steps to reproduce Steps to reproduce the behavior:

1. Launch AtomSampleViewerStandalone.exe.
2. Load the Bloom samples (Samples -> Features -> Bloom).
3. Check the Enable box on the Sidebar.

Expected behavior The default Bloom settings have moderate intensity. Color bar brightness is increased gradually from left to right.

Actual behavior The default Bloom settings are too intense. Color bar brightness change is abrupt, with most of the bars being white.

Screenshots/Video

https://user-images.githubusercontent.com/86953108/162386098-91c810be-a63a-4016-a78f-77a16c973d35.mp4

Found in Branch ASV: Stabilization/2205(3efc7e3) O3DE: Stabilization/2205:Installer

Desktop/Device:

• Device: PC
• OS: Windows
• Version 10
• CPU AMD Ryzen 5 3600
• GPU Nvidia RTX 2060 SUPER
• Memory 16GB