What is a BRT file?
DAZ Production created the BRT file format for Bryce, a program that creates 3D model and landscapes. It belongs to the raster image group and is binary in format. It is mostly used for texturizing three dimensional images, but artists use it to store paintings too. It contains a 2D graphic that users can fit into a 3D model. There are several pre-saved textures available in the program, and users can create their own versions too.
How to Open BRT Files
How to Make BRT Files
Exact steps for creating BRT files will vary by program and operating system. Download one of the above listed programs and you should be able to follow typical procedure for opening files or creating files from the File menu. Typically you will select File > Open or File > New and continue through the prompts. Some programs may follow a different procedure for either creation or opening of files.