语法：

shader_set(shader);

参数	描述
shader	The index of the shader to use.

返回：

N/A（无返回值）

描述

With this function you can set the drawing target to the given shader and all further drawing will be done using that. You can end shader use with function shader_reset.

NOTE: You can only call a shader in the Draw Event of an instance.

重要！该函数在试用版（Trial License）产品中不可用。

例如：

shader_set(shader_Glass);
draw_self();
shader_reset();

The above code will set a shader top be used for drawing, then draw the current sprite used for the instance using it.