Automatic code generation for low-dimensional geometric algorithms is capable of producing efficient low-level software code through a high-level geometric domain specific language. Geometric Algebra (GA) is one of the most suitable algebraic systems for being the base for such code generator. This work presents an attempt at realizing such idea in practice. A novel GA-based geometric code generator, called GMac, is proposed. Comparisons to similar GA-based code generators are provided. The possibility of fully benefiting from the symbolic power of GA while obtaining good performance and maintainability of software implementations is illustrated through a ray tracing application.
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