Note that the blue sections represent sections where we can inject our own shaders.Īs you can see, the graphics pipeline contains a large number of sections that each handle one specific part of converting your vertex data to a fully rendered pixel. Shaders are written in the OpenGL Shading Language ( GLSL) and we'll delve more into that in the next chapter.īelow you'll find an abstract representation of all the stages of the graphics pipeline.
This gives us much more fine-grained control over specific parts of the pipeline and because they run on the GPU, they can also save us valuable CPU time. Some of these shaders are configurable by the developer which allows us to write our own shaders to replace the existing default shaders.
The processing cores run small programs on the GPU for each step of the pipeline. Because of their parallel nature, graphics cards of today have thousands of small processing cores to quickly process your data within the graphics pipeline. All of these steps are highly specialized (they have one specific function) and can easily be executed in parallel. The graphics pipeline can be divided into several steps where each step requires the output of the previous step as its input. The graphics pipeline takes as input a set of 3D coordinates and transforms these to colored 2D pixels on your screen. In this chapter we'll briefly discuss the graphics pipeline and how we can use it to our advantage to create fancy pixels. The graphics pipeline can be divided into two large parts: the first transforms your 3D coordinates into 2D coordinates and the second part transforms the 2D coordinates into actual colored pixels. The process of transforming 3D coordinates to 2D pixels is managed by the graphics pipeline of OpenGL. In OpenGL everything is in 3D space, but the screen or window is a 2D array of pixels so a large part of OpenGL's work is about transforming all 3D coordinates to 2D pixels that fit on your screen. Hello Triangle Getting-started/Hello-Triangle
0 kommentar(er)
