jartz opened this issue on Nov 24, 2010 · 71 posts
markschum posted Wed, 24 November 2010 at 9:33 AM
png files for initial render , then psd for layered photoshop images, and finally png for printing or jpg for the web.
jprg compression removes colors. So if you have say a forest scene with 50 shades of green jpeg compression will reduce the number of different greens.