Convert XBM to RAD

The XBM (X11 Bitmap Graphic) file extension is a plain-text binary file format historically used in the X Window System to store monochrome bitmap images. Its primary use is for defining small, simple graphics such as icons and cursors. Originating from the 1980s, XBM files enable the inclusion of image data directly in C source code, facilitating easy integration and compilation within applications. While their use has declined with the advent of more advanced graphics formats, XBMs remain relevant for legacy systems and specific low-resource environments.

The RAD file extension, associated with the Radiance software suite, stands for Radiance Scene Description. It is used to describe materials and geometry for lighting simulations and rendering programs. Developed by Greg Ward at Lawrence Berkeley National Laboratory, Radiance employs ray tracing and an octree data structure for accurate lighting calculations. RAD files are ASCII text files that must be compiled into an octree before rendering.