基于Metal的实时光线追踪研究

Research on real-time ray tracing based on Metal

真实感图形学就是利用光照、阴影及物体之间的交互模拟出一个真实的虚拟世界。渲染(Rendering)是图形学的研究重点,它是根据着色器、纹理等提供的数据信息通过信息处理的方式所生成的矢量图像,依据渲染方式的不同可分为实时渲染和离线渲染,文章将实时渲染中实时性和离线渲染中光线追踪算法结合起来,并使用Metal图形API实现了一个全局光照模型,最终达到了高精度且实时的渲染效果。

Photorealistic graphics simulates a real virtual world by using the interaction between light, shadow and objects. Rendering is the research focus of graphics. It is a vector image generated by information processing according to the data information provided by shaders and textures. According to different rendering methods, it can be divided into real-time rendering and off-line rendering. This paper combines the real-time performance in real-time rendering with the ray tracing algorithm in off-line rendering, and realizes a global lighting model using metal graphics API, Finally, high-precision and real-time rendering effect is achieved.