Christoph Hormann schrieb:

> One field where i consider performance to be possibly critical is use of 
> images in isosurfaces.  This leads to a real lot of image evaluations. 
> There however you nearly always use a linear gamma curve.  So a special 
> case for images where file_gamma is exactly 1.0 would be a good idea.

That's already implemented :-)

In case the effective decoding gamma curve happens to be neutral, the 
file readers choose an image container that does not do gamma lookup at 
all, and just does the standard "/255.0f" decoding instead.

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