PIX is legacy and read-only here
PIX is an Alias/Wavefront raster format from early 3D software. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new PIX files.
Looking for BMP to PIX? Here's why PIX isn't an output option — and the modern formats to use.
We don't create PIX files — it's a legacy format that's effectively read-only. Here's what to convert to instead.
PIX is an Alias/Wavefront raster format from early 3D software. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new PIX files.
For a file that opens everywhere, convert your BMP to PNG, JPG or TIFF instead.
BMP is an uncompressed raster format that stores pixel data with no quality loss, producing large files. It is common on Windows.
How to open BMP opens in most image viewers and editors on Windows and Mac.
Full BMP format guidePIX is Alias's image format from its early 3D software (the ancestor of Maya), storing rendered frames on SGI systems.
How to open PIX opens in some 3D and conversion tools; convert to PNG/TIFF for standard editors.
Full PIX format guide