Encoding FP16/FP32 textures with astcenc

Hello,

How can I compress raw binary floating point (16 or 32) textures using astcenc tool?

I have these binary files with array of floats which is basically a raw data to be consumed by glTexImage2D. It has no headers with any information about texture dimensions, etc.

How should I consume such data into astcenc tool?

The only thing mentioned in documentation is that astcenc supports *.exr and *.hdr files for HDR source images.