I just confirmed part of what you're seeing. While we can change the rendered image size to any pixel dimensions, I do not see any way to export in other than PNG format. That said, PNG is superior (lossless) to JPEG and can have any color profile attached - and I'm not sure what TIFF would bring to the table. You can always convert to TIFF in PS if that is useful, but I'm not sure how there is "more latitude" for post production with other formats (other than converting to PSD).
The colors look identical to TwinMotion if I have Photoshop set to use sRGB as the working color space before import. If I use ProPhoto or other, wider, color spaces, I get awful, saturated colors. I can't tell that TwinMotion actually even attached a color profile to the PNG file, as it should have, which may be part of the issue. But, sRGB brings the image in fine for me anyway as a way of moving forward pending Epic's discovery of the intricacies of color spaces and printing, something that they haven't really needed to address as a game maker I imagine.
rm wrote:Contact Graphisoft US tech support: One of the GS NA consultants is working with Epic - and was at the TwinMotion booth at the Key Client Conference in Las Vegas in June. Unfortunately, I lost his name/contact info when my backpack was stolen when leaving the hotel... but I was surprised that his business card was a Graphisoft one vs an Epic Games one.
I wish I knew how to convey this information to them, but they just don't have a way to send them a direct support ticket. They don't seem very interested, yet, to support TwinMotion. I suspect, GS is not going to be offering tech support for TwinMotion problems either.