Assumes a Film ISO in the Iray Tone Mapping Settings of 100. If a different Film ISO is used, these values will need to be adjusted accordingly.
| EV | Real-World Situation for Proper Exposure |
|---|---|
| -6 | Nighttime landscape under quarter moon |
| -5 | Aurora borealis of moderate brightness |
| -4 | Nighttime landscape under gibbous moon |
| -3 | Nighttime landscape under full moon |
| -2 | Nighttime snow or beach landscape under full moon |
| -1 | End of blue hour |
| 0 | Late in blue hour |
| 1 | Middle of blue hour |
| 2 | Distant cityscape at night |
| 3 | Indoor scene lit only by dim window light |
| 4 | Floodlit monuments or fountains at night |
| 5 | Typical artificial indoor light |
| 6 | Bright indoor lighting |
| 7 | Fairs and theme parks at night |
| 8 | Bright window displays and advertisements at night |
| 9 | Nighttime sporting events under bright light |
| 10 | Moment after sunset on a clear day |
| 11 | Daylight on a foggy day |
| 12 | Moment before sunset on a clear day |
 13
|
Typical subject on a bright, cloudy day Iray Default! |
| 14 | Typical subject on a day with hazy sunlight |
| 15 | Full sunlight on a cloudless day, typical subject |
| 16 | Full sunlight on a cloudless day, bright subject (i.e. the beach) |
| 17 | Full sunlight on a cloudless day, highly reflective subject (i.e. snow) |
The Exposure Value for your scenes can be adjusted in the Tone Mapping section of the Iray Render Settings. If you have no Tone Mapping section listed, go to Create → New Tonemapper Options Node.