An example function definition is given here for a simple function that computes basic diffuse lighting: vec4 diffuse(vec3 normal, vec3 light, vec4 baseColor) { return baseColor * dot(normal, light); } One note about functions in the OpenGL ES Sh…
C语言中的函数指针 函数指针的概念: 函数指针是一个指向位于代码段的函数代码的指针. 函数指针的使用: #include<stdio.h> typedef struct (*fun_t) (int,int); fun_t pf; int add(int a, int b) { return a+b; } int sub(int a,int b) { return a-b; } int mul(int a,int b) { return a*b; } int div(int a,int b)…