Renderização 3d em sistemas embarcados utilizando risc-v assembly

Abstract

The development of tridimensional rendering technologies is, primarily, focused on the image’s quality improvement, with less regard to the energetic and economic optimization of the processing devices. In this work, it is pursued otimizing this medium. Using 3D rendering techniques in an embedded system with low energy consumption while using the RISC-V instruction set architecture as a foundation. The processor’s architecture has an influence on the development of the software, because it is the one that gives the tools for the algorithm’s development. RISC-V has a wide range of optimizations in its structure, useful for high-efficiency programming and accessible directly via assembly language. For an object’s tridimensional rendering, it is necessary to convert the points from a tridimensional to a bidimensional plane. Those conversions are realized by the transformatrion matrices, which realize the necessary transformations in order to project the model into a projection cube. With the points in bidimensional coordinates, those values can be rasterized into the model’s pixel projection.