Hi,

to understand shading language



Thanks in advance

Introduction

The recent trend in graphics hardware has been to replace fixed functionality in vertex and fragment processing with
programmability. This allows developers to create unforeseen visual complexity that used to possible with only offline
renderers. Vertex processing involves the operations that occur at each vertex, including transformation and lighting. Fragment processing consists of the operations that occur after rasterization, most notably the sampling of textures and assigning the sampled values to each fragment.