image mipmaps

For uncompressed images like the image crate, mipmaps will need to be automatically generated or manually specified by the user. Uncompressed formats like PNG or JPEG typically do not support mipmaps. For the image crate, mipmaps can be generated by repeatedly scaling down the image by a factor of two using some sort of filtering like gaussian or bilinear.

No files, tests, or entry points are named. Start by locating the Rust code that handles uncompressed images and the image crate integration, then review how texture mipmaps are represented. Done means the project has a defined way to generate mipmaps or accept user-specified levels for formats such as PNG or JPEG.

Written by the indexing model from the issue text.