Added shader packs

tools/packsrc/PolarVisualizer/pack.json

@@ -0,0 +1,21 @@
+{
+    "author": "Lallis",
+    "name": "PolarVisualizer",
+    "version": "1.0.0",
+    "description": "Yet another audio visualizer. Tried to fake some depth with the light and reflection. Try reversing the band order.",
+    "license": "CC BY-NC-SA 3.0",
+    "engine": "shadertoy",
+    "id": "4lySzy",
+    "tags": [
+        "reactive",
+        "2d"
+    ],
+
+    "source": "./shaders/Image.frag.qsb",
+    "speed": 1.0,
+
+    "channel0":
+    {
+        "type": 4
+    }
+}

tools/packsrc/PolarVisualizer/shaders/Image.frag

@@ -0,0 +1,133 @@
+#define time iTime
+#define PI 3.14159265359
+
+#define NUM_BANDS 32
+
+//#define REVERSED
+
+float noise3D(vec3 p)
+{
+	return fract(sin(dot(p ,vec3(12.9898,78.233,12.7378))) * 43758.5453)*2.0-1.0;
+}
+
+vec3 mixc(vec3 col1, vec3 col2, float v)
+{
+    v = clamp(v,0.0,1.0);
+    return col1+v*(col2-col1);
+}
+
+vec3 drawBands(vec2 uv)
+{
+  	uv = 2.0*uv-1.0;
+    uv.x*=iResolution.x/iResolution.y;
+    uv = vec2(length(uv), atan(uv.y,uv.x));
+    
+    //uv.x-=0.25;
+    //uv.x = max(0.0,uv.x);
+    
+    uv.y -= PI*0.5;
+    vec2 uv2 = vec2(uv.x, uv.y*-1.0);
+    uv.y = mod(uv.y,PI*2.0);
+    uv2.y = mod(uv2.y,PI*2.0);
+    
+    vec3 col = vec3(0.0);
+    vec3 col2 = vec3(0.0);
+    
+    float nBands = float(NUM_BANDS);
+    float i = floor(uv.x*nBands);
+    float f = fract(uv.x*nBands);
+    float band = i/nBands;
+   	float s;
+   	
+    #ifdef REVERSED
+    band = 1.0-band;
+    #endif 
+    
+    //cubic easing
+    band *= band*band; 
+    
+    band = band*0.99;
+    band += 0.01;
+    
+    s = texture( iChannel0, vec2(band,0.25) ).x;  
+    
+    if(band<0.0||band>=1.0){
+        s = 0.0;
+    }
+    
+    /* Gradient colors and amount here */
+    const int nColors = 4;
+    vec3 colors[nColors];  
+    colors[0] = vec3(0.05,0.05,1.0);
+    colors[1] = vec3(0.05,1.00,1.00);
+    colors[2] = vec3(0.50,1.00,0.25);
+    colors[3] = vec3(1.00,0.75,0.25);
+ 
+    vec3 gradCol = colors[0];
+    float n = float(nColors)-1.0;
+    for(int i = 1; i < nColors; i++)
+    {
+		gradCol = mixc(gradCol,colors[i],(s-float(i-1)/n)*n);
+    }
+    
+    float h = PI*0.5;
+    
+    col += vec3(1.0-smoothstep(-0.5,0.0,uv.y-s*h));
+    col *= gradCol;
+
+    col2 += vec3(1.0-smoothstep(-0.5,0.0,uv2.y-s*h));
+    col2*= gradCol;
+    
+    col = mix(col,col2,step(0.0,uv.y-PI));
+
+    col *= smoothstep(0.125,0.375,f);
+    col *= smoothstep(0.875,0.625,f); 
+    
+    col = clamp(col,0.0,1.0);
+    
+    return col;
+}
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	vec2 uv = fragCoord.xy / iResolution.xy;
+    
+    vec2 p = vec2(uv.x, uv.y+0.2);
+	vec3 col = vec3(0.0);
+    col += drawBands(p);//*smoothstep(1.0,0.5,uv.y);;
+    
+    vec3 ref = vec3(0.0);
+    vec2 eps = vec2(0.0025,-0.0025);
+
+    ref += drawBands(vec2(p.x,1.0-p.y)+eps.xx);
+    ref += drawBands(vec2(p.x,1.0-p.y)+eps.xy);
+    ref += drawBands(vec2(p.x,1.0-p.y)+eps.yy);
+    ref += drawBands(vec2(p.x,1.0-p.y)+eps.yx);
+    
+    ref += drawBands(vec2(p.x+eps.x,1.0-p.y));
+    ref += drawBands(vec2(p.x+eps.y,1.0-p.y));
+    ref += drawBands(vec2(p.x,1.0-p.y+eps.x));
+    ref += drawBands(vec2(p.x,1.0-p.y+eps.y));
+
+    ref /= 8.0;
+     
+    float colStep = length(smoothstep(0.0,0.1,col));
+    
+    vec3 cs1 = drawBands(vec2(0.5,0.51));
+    vec3 cs2 = drawBands(vec2(0.5,0.93));
+        
+    vec3 plCol = mix(cs1,cs2,length(p*2.0-1.0))*0.15*smoothstep(0.75,-0.25,length(p*2.0-1.0));
+    vec3 plColBg = vec3(0.05)*smoothstep(1.0,0.0,length(p*2.0-1.0));
+    vec3 pl = (plCol+plColBg)*smoothstep(0.5,0.65,1.0-uv.y);
+    
+    col += clamp(pl*(1.0-colStep),0.0,1.0);
+    
+    col += ref*smoothstep(0.125,1.6125,p.y); 
+    
+    col = clamp(col, 0.0, 1.0);
+
+    float dither = noise3D(vec3(uv,time))*2.0/256.0;
+    col += dither;
+    
+	fragColor = vec4(col,1.0);
+}