Added shader packs

tools/packsrc/Alien Ocean/shaders/Buffer A.frag

@@ -0,0 +1,33 @@
+float ray(vec3 ro, vec3 rd, float t) 
+{
+    vec3 p = ro+t*rd;
+    float h = 0.;
+    for (int i=0;i<100;i++) {
+        float h = p.y-srf(p.xz,ITERS_RAY, iTime).x;
+        if (h<t*EPS*4.) return t;
+        t+=h;
+        p+=rd*h;
+    }
+    return t;
+}
+
+void mainImage( out vec4 O, in vec2 u )
+{
+    vec2 R = iResolution.xy;
+    if (all(lessThan(u*8.,R))) {
+         vec2 uv  = (16.*u-R)/R.x,
+              muv = (2.*iMouse.xy-R)/R.x*-float(iMouse.z>1.)*PI; 
+
+        //Camera
+        vec3 vo = vec3(iTime,1.01,iTime),
+             vd = camera_ray(vo,uv,muv,iTime);
+        
+        float t = -vo.y/(vd.y-1.0+EPS*8.);
+        if (t>0.) {
+            //march to surface with high epsilon
+            t = ray(vo,vd, t);
+        }
+
+        O = vec4(t);
+    }
+}