片段着色器：“没有匹配的重载函数找到”错误

Question

的问题来自于天壤之别功能：

vec3 mandelbrot (vec2 coord){ 
    vec2 z0 = vec2(0.0, 0.0); 
    int number = fractal (z0, coord, 10000);  
    float v = float(number); 
    float factor = 0.0; 
    return paletize (v, factor); 
} 

int fractal (vec2 z0, vec2 c, int maxIterations){ 
//doesn't matter 
} 

vec3 paletize (float v, float factor){ 
    doesn't matter 
} 

，这里是错误消息：https://gyazo.com/5516853ee2600b58a303fd609530fafe

片段着色器无法编译：错误日志是：

ERROR:0:13 ´fractal´:no matching overloaded function found 
ERROR:0.13: '=' : cannot convert from const float to mediump int 
ERROR:0:19: ´paletize´: no matching overloaded function found 
ERROR:0:19: ´return´: function return is not matching type:

Answer 1

尝试在mandelbrot上移动你的分形和古代函数。