It appears that something internally is a little wonk in the color management system.
When loading the OpenColorIO test images such as Marci.png, the transforms do not yield a 1:1 sRGB transform. I've tested using ExponentTransforms as well, and no matter what config (including the Nuke default), the higher end of the values appears off by quite a factor. Nuke passes the test fine, so it extends beyond the default Blender set of OCIO config files. Further, the sRGB transform uses the Sony 1D LUT in conjunction with an ACES matrix, which seems entirely odd. In theory, if the default internal Blender space is intended to be sRGB / 709 primaries, only an ExponentTransform or a 1D bounded 0..1 LUT should suffice to linearize the sRGB asset. This is tangential to the issue however. The reference images can be found at the OpenColorIO site at http://code.google.com/p/opencolorio/downloads/detail?name=ocio-images.1.0v4.tgz The simplest test is to load the Marci PNG file from the Nuke set, and compare against any image viewer. With respect, TJS _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
