The programmable GPU permits developers to write vertex shaders and fragment shaders running on it, to replace the fixed function pipeline, and to employ custom rendering algorithms.

可编程图形处理器允许用户编写运行在其上的顶点着色程序与片断着色程序，取代内置的固定功能渲染流水线，实现定制的渲染算法。

youdao

With the era of programmable graphics hardware, shader replaces the traditional fixed rendering pipeline to achieve more realistic effects.

随着可编程图形硬件时代的到来，着色器替代了传统的固定渲染管线以实现更加逼真的图像效果。

youdao