Comments on: DDS Has No Gamma (Which is Very Sad)

By: Anonymous

Anonymous — Wed, 07 Jul 2010 09:39:00 +0000

I wonder about gamma handling of other things moving through the graphics pipeline, primarily lighting. With dark tints and/or light coming from the side, the usual assume-things-are-linear approach becomes a lot darker than it should be (and a darker at higher gamma values, in case you went tweaking). Unfortunately you can't simply preprocess the gamma-corrected dot product, like you could with the light's color and textures.

By: Benjamin Supnik

Benjamin Supnik — Wed, 30 Jun 2010 22:19:59 +0000

The assumption that DDS content originates on Windows is not a safe assumption.

We in particular didn't assume this because our internal art team originated DDS files on Mac!

By: kaminari

kaminari — Wed, 30 Jun 2010 18:18:59 +0000

Not willing to add fuel to the fire, but I'm trying to make some sense out of it. Why do you assume a gamma of 1.8 for DDS files, when this Microsoft format is essentially used by Windows developers?

DDS is a neat format with a few shortcomings, but most of all I don't remember any Mac developers using DDS textures in their X-Plane products, be they aircrafts or sceneries.

It would be fair to assume that most DDS textures have been created in Windows environments and thus require a default gamma of 2.2.