show some love to hyper

Assets/Scenes/GFLPC_Julia/Julia.shader

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+Shader "Kaiju/Julia"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        _Iterations("Iterations", range(0, 555)) = 255
+        _Pan("Pan", vector) = (0.5, 0.0, 0.0, 0.0)
+        _Zoom("Zoom", range(0, 4)) = 3
+        _Aspect("Aspect", range(0, 4)) = 1
+        _JuliaSeed("JuliaSeed", vector) = (0.39, -0.2, 0.0, 0.0)
+        _Colors("Colors", vector) = (3.0, 4.0, 5.0, 0.0)
+    }
+    SubShader
+    {
+        // No culling or depth
+        Cull Off ZWrite Off ZTest Always
+
+        Pass
+        {
+            CGPROGRAM
+            // #pragma enable_d3d11_debug_symbols
+            #pragma target 3.0
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+            };
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = v.uv;
+                return o;
+            }
+
+            float   _Iterations;
+            float2  _Pan;
+            float   _Zoom;
+            float   _Aspect;
+            float2  _JuliaSeed;
+            float3  _Colors;
+
+            float ComputeValue(float2 v, float2 offset) {
+                float vxsquare = 0;
+                float vysquare = 0;
+
+                float iteration = 0;
+                float lastIteration = _Iterations;
+
+                do {
+                    vxsquare = v.x * v.x;
+                    vysquare = v.y * v.y;
+
+                    v = float2(vxsquare - vysquare, v.x * v.y * 2) + offset;
+
+                    iteration++;
+
+                    if ((lastIteration == _Iterations) && (vxsquare + vysquare) > 4.0) {
+                        lastIteration = iteration + 1;
+                    }
+                } while (iteration < lastIteration);
+
+                return (float(iteration) - (log(log(sqrt(vxsquare + vysquare))) / log(2.0))) / float(_Iterations);
+            }
+
+            float4 Mandelbrot_PixelShader(float2 texCoord : TEXCOORD0) : COLOR0 {
+                float2 v = (texCoord - 0.5) * _Zoom * float2(1, _Aspect) - _Pan;
+                float val = ComputeValue(v, v);
+                return float4(sin(val * _Colors.x), sin(val * _Colors.y), sin(val * _Colors.z), 1);
+            }
+
+            float4 Julia_PixelShader(float2 texCoord : TEXCOORD0) : COLOR0 {
+                _JuliaSeed = float2(sin(_Time.y), cos(_Time.y));
+                float2 v = (texCoord - 0.5) * _Zoom * float2(1, _Aspect) - _Pan;
+                float val = ComputeValue(v, _JuliaSeed);
+                return float4(sin(val * _Colors.x), sin(val * _Colors.y), sin(val * _Colors.z), 1);
+            }
+
+            float4 frag (v2f i) : SV_Target {
+                // return Julia_PixelShader(i.uv);
+                return Mandelbrot_PixelShader(i.uv);
+            }
+
+            ENDCG
+        }
+    }
+}