Hi guys! Probably you already have this skins http://www.racedepartment.com/downloads/gm1986-season-skin-pack.5083/ This are nice skins but with more than 6 cars on the grid i have sttutering problems.... So i decide to optimize the file size (in many cases 12mb for a plain 4k single color texture). This is what i do: Compress the main texture dds in DTX5 format Rescale carbon details to 50% and save it like DTX5 Rescale helmet textures an detail textures and save it like DTX5 Save uncompressed textures in DTX5 format Result: no more sttutering with the same sharp textures (1920x1080) 23´ monitor HD size reduced from 1.7 GB to 255 Mb NOTE: I DON´T CLAIM ANY CREDIT FOR THIS, I JUST SHARE IT BECAUSE CAN BE USEFUL FOR SOMEONE WITHOUT THE SKILLS OR TIME TO DO THE JOB... http://www.mediafire.com/download/qgyej5l2x1z6hu6/Lotus98_1986_skins.7z
This is actually a nice point you are touching. I was running in a league some time back, and had similar situation. When it's one car, it might not matter much, but with a full grid of custom skins, it's a LOT of memory occupied. So did a test similar to yours, and with absolutely no visible quality loss, size in Mb (not in resolution) was reduced to 25% or so. All this to actually say, thank you for taking the time to share your findings. They will be useful. Cheers .