000c787059
The previous value was incorrectly assuming this is 2^exposure, but it is a simple multiplier. Specifying large film exposure values is useful as it affects the raw data and thus results in the same color values available in EXR, Viewer, and Compositor, whereas using Color Management exposure is not reflected in EXR exports, resulting in unusably low values. Using film exposure remedies that. Pull Request: https://projects.blender.org/blender/blender/pulls/138850
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