ShaderJoy ——螺旋线闪光粒子效果【GLSL】

效果图

完整代码和注释

  

   

    

     

    
    

     

      const float rad = 0.9;
     
    
   

    

     

    
    

     

      const float dots = 64.0;
     
    
   

    

     

    
    

     

      const float duration = 180.0;
     
    
   

    

     

    
    

     

      const vec3 colorsep = vec3(0, 2.09, 4.18);
     
    
   

    

     

    
    

     

      const float PI = 3.1415926535897932384626433832795;
     
    
   

    

     

    
    

     

      const float PI2 = 2.0 * PI;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      #iUniform float power = 1.5 in {0., 6.}
     
    
   

    

     

    
    

     

      void mainImage( out vec4 fragColor, in vec2 fragCoord )
     
    
   

    

     

    
    

     

      {
     
    
   

    

     

    
    

     
    /// [0., 1.] -> [-.5, .5]
     
    
   

    

     

    
    

     

          vec2 p = -1.0 + 2.0 * fragCoord.xy / iResolution.xy;
     
    
   

    

     

    
    

     
    float tm = mod(iTime, duration) / duration;                         ///< 时间周期性
     
    
   

    

     

    
    

     

          p.y *= iResolution.y / iResolution.x;
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

          vec3 gradient = vec3(0.0);
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
    for (float i = 1.0; i <= dots;
     
    
  
 

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