Let's take a look at shaders in this section, even though we've looked at shaders in the previous section while creating the triangle and using a shader to color it. What we're going to do in this section is to abstract the shader code into a vertex shader file and a fragment shader file so that it's a lot neater and more reusable. And, we're also going to abstract out the loading of the shader, as once we've abstracted that out, we probablywon't need to change it at all, or at least there won't be too many changes to it. Further, in our projects, we'll just use these files to load the shaders in our code, which will make it easy to use.