The imagemap_drape shader, which lets very high-resolution texture drapes be rendered, has been updated to work with image files over 4 GB in size. Since TGA format is used, image resolutions can only go up to 65,535 pixels square, but for 16-, 24-, and 32-bit images, the old limits of 45,000, 37,000 and 32,000 pixels respectively no longer apply.
Ray