This article goes over the evolution of the hardware graphics pipeline on GPUs across the different game console generations.| The Gistre Blog
The Khronos Vulkan Ray Tracing Task Sub Group (TSG) has developed and released a set of extensions that seamlessly integrate ray tracing functionality into the existing Vulkan framework. This blog summarizes how the Vulkan Ray Tracing extensions were developed, and illustrates how they can be used by developers to bring ray tracing functionality to their applications.| The Khronos Group
Learn OpenGL . com provides good and clear modern 3.3+ OpenGL tutorials with clear examples. A great resource to learn modern OpenGL aimed at beginners.| learnopengl.com