Exposure & Range

Exposure and Range are similar to the "Color Curves" tool in Gimp or Photoshop.

These controls affect the rendered image, and the results are baked into the render.For information on achieving similar affects with render controls,see .

Using an exponential correction formula, this now can be nicely corrected.

Exposure and Range sliders.

• The exponential curvature, with (0.0 to 1.0) (linear to curved).
• Range

• Range > 1.0
• The picture will become darker; with Range = 2.0,a color value of 1.0 (the brightest by default) will be clipped to 0.5(half bright) (Range: 2.0).
• The picture will become brighter; with Range = 0.5,a color value of 0.5 (half bright by default) will be clipped to 1.0(the brightest) (Range: 0.5).

Examples

With a linear correction every color value will get changed,which is probably not what we want. Exposure brightens the darker pixels,so that the darker parts of the image will not be changed at all(Range : 2.0, Exposure : 0.3).

Hint