BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation, with more than 20 years of active development. NOTE: This package needs about 7GB of space to build, so adapt your OUTPUT and TMP variables if necessary. WARNING: There is a known conflict with the 'qt5' package, remove it before building.