shader_set_uniform_i(handle, value1 [, value2, value3, value4]);
参数 描述 handle The handle of the shader constant to set. value1 ... value4 The integer value (or values) to set the shader constant to.
With this function you can set the value (or values) of a shader constant. You must previously have gotten the "handle" of the constant using the function shader_get_uniform, and you will have to know what type of constant it is to pass the correct number of integer values through to it, ie: if you have a vec2 you will need to pass two values to the function.NOTE: All uniforms must be set after calling the function shader_set(), and before calling shader_reset.重要！该函数在试用版（Trial License）产品中不可用。
shader_params = shader_get_uniform(shader_glass, "u_vParams");
shader_set_uniform_i(shader_params, 0, 65, 255);
The above code will get the handle of the shader constant "u_vParams" ( a vec3), then set that constant to the given integer values.