Cross Platform Gamma Issues

[Bryan Everett]

It doesn’t appear to be the codec. I’ve tried PNG, DV, and PhotoJPG, the results are all the same. I am going to go ahead and try TARGA and Uncompressed, just to verify.

I also don’t see how it could be color calibration of the actual monitor as that is only a visual reference. I could tweak my monitor until everything is washed out, but that won’t change the color vaues of the actual file, only what I am visually seeing on this particular monitor.

I’m going to try a couple more codecs and also render from a different MAC and PC than I was using before and I’ll let you know what I find.
Thanks for everyones input. Keep it coming.

[Danny Princz]

tried targa or some other uncompressed codec as the ones you are using are not the best for any type of calibration

who is that masked man…

[Bryan Everett]

Ok…We’re halfway there. Using TGA and NONE codecs gave me exact matches on both my grayscale bars.png and my color bars.png. Everything matched.
However, I have 1 other element in the same comp that is still not matching. It’s a HD Jumpback (from digital Juice) in the PNG format. The PC render when imported into MAC AE to compare to the original is washed out. The MAC render when imported into PC AE is darker. The gray bars and color bars (in the same render) match perfect.
Now what?

[Danny Princz]

not that elegant, but you could render/convert the png sequence to targas or an ANIM QT and use that as a src.
Not sure why the PNGs would look different when rendered out the same way… have to think about that one

who is that masked man…

[Bryan Everett]

Not elegant at all when I am dealing with comp sizes over 4K. That’s a ton of storage space for TGA files, but it worked.
I converted my PNG video source to TGA and that along with rendering to the TGA codec has preserved my comp colors across both PC and MAC platforms. It’s unfortunate that other codecs don’t do a good job at this.

Thanks for everyone’s help and input.