My Pano2VR profile problem manifested in oversaturated colors. I'm using a fully color managed workflow with a profiled and calibrated Dell U3011 monitor and this toolset:
MacOS 10.6.8
Apple Aperture 3.2.2 (exporting images according to sRGB IEC61966-2.1 by default)
Pano2VR 3.1.2 Cocoa 64-bit
Safari 5.1.2
Chrome 5.0.375
Firefox 9.0.1 (with gfx.color_management.mode=1)
Flash 11.1 plugins in all browsers.
These browsers are all color-managed (when Firefox is set correctly) and the oversaturated rendering of Pano2VR output is essentially identical in all these browsers under both HTML5 or Flash. They all apply the sRGB profile to untagged images (actually, Safari applies the monitor profile in 10.6.8, which in my case is not too far from sRGB) but with my workflow this results in oversaturation.
The problem may be that Pano2VR ignores the ICC profile that Aperture embedded in the original input file and outputs its files assuming the Adobe RGB model -
and without any embedded profile tag. This probably works fine if you were using Photoshop and its default Color Settings; however, I was using Aperture and outputting sRGB.
I was able to work around the oversaturation effect in two different ways, one or the other of which some users may find applicable:
1) Initially, I simply took the cube face image jpegs output by Pano2VR and applied the Adobe RGB profile to them using Preview's "Assign Profile..." command. This resulted in HTML and Flash browser rendering that matched what I had originally created in Aperture (since these up-to-date browsers correctly render tagged images.)
2) Aperture allows individual image export presets which have different ICC color profiles applied. So as a better alternative, I created a preset especially for outputting images to Pano2VR which embeds the Adobe RGB profile in the image, and more importantly
renders the output following the Adobe RGB model. When Pano2VR outputs its untagged files using that same model, the results match what I see in Aperture.
BTW, I found
this ICC browser test page at Color.org useful for verifying that my browsers were up-to-date and that Firefox's color management parameters were set correctly.
-Steve