version 2.0 update

Restructured the project; moved SpriteGlow core assets to a separate
folder.
Added performance testing scene.
Improved script and shader performance.
Fixed the issue when outline wasn't drawing at the sprite borders.
Fixed Unity 5.6 deprecated API warnings.

.gitignore

@@ -6,6 +6,7 @@
 /Assets/AssetStoreTools*
 
 # Autogenerated VS/MD solution and project files
+.vs/
 ExportedObj/
 *.csproj
 *.unityproj
@@ -27,7 +28,6 @@ sysinfo.txt
 
 # Builds
 *.apk
-*.unitypackage
 
 # =========================
 # Operating System Files

Assets/PostProcessing/Editor Resources/Monitors/HistogramCompute.compute

@@ -0,0 +1,91 @@
+#include "UnityCG.cginc"
+
+RWStructuredBuffer<uint4> _Histogram;
+Texture2D<float4> _Source;
+
+CBUFFER_START (Params)
+    uint _IsLinear;
+    float4 _Res;
+    uint4 _Channels;
+CBUFFER_END
+
+groupshared uint4 gs_histogram[256];
+
+#define GROUP_SIZE 16
+
+#pragma kernel KHistogramGather
+[numthreads(GROUP_SIZE, GROUP_SIZE,1)]
+void KHistogramGather(uint2 dispatchThreadId : SV_DispatchThreadID, uint2 groupThreadId : SV_GroupThreadID)
+{
+    const uint localThreadId = groupThreadId.y * GROUP_SIZE + groupThreadId.x;
+
+    if (localThreadId < 256)
+        gs_histogram[localThreadId] = uint4(0, 0, 0, 0);
+
+    GroupMemoryBarrierWithGroupSync();
+
+    if (dispatchThreadId.x < (uint)_Res.x && dispatchThreadId.y < (uint)_Res.y)
+    {
+        // We want a gamma histogram (like Photoshop & all)
+        float3 color = saturate(_Source[dispatchThreadId].xyz);
+        if (_IsLinear > 0)
+            color = LinearToGammaSpace(color);
+
+        // Convert color & luminance to histogram bin
+        uint3 idx_c = (uint3)(round(color * 255.0));
+        uint idx_l = (uint)(round(dot(color.rgb, float3(0.2125, 0.7154, 0.0721)) * 255.0));
+
+        // Fill the group shared histogram
+        if (_Channels.x > 0u) InterlockedAdd(gs_histogram[idx_c.x].x, 1); // Red
+        if (_Channels.y > 0u) InterlockedAdd(gs_histogram[idx_c.y].y, 1); // Green
+        if (_Channels.z > 0u) InterlockedAdd(gs_histogram[idx_c.z].z, 1); // Blue
+        if (_Channels.w > 0u) InterlockedAdd(gs_histogram[idx_l].w, 1);   // Luminance
+    }
+
+    GroupMemoryBarrierWithGroupSync();
+
+    // Merge
+    if (localThreadId < 256)
+    {
+        uint4 h = gs_histogram[localThreadId];
+        if (_Channels.x > 0u && h.x > 0) InterlockedAdd(_Histogram[localThreadId].x, h.x); // Red
+        if (_Channels.y > 0u && h.y > 0) InterlockedAdd(_Histogram[localThreadId].y, h.y); // Green
+        if (_Channels.z > 0u && h.z > 0) InterlockedAdd(_Histogram[localThreadId].z, h.z); // Blue
+        if (_Channels.w > 0u && h.w > 0) InterlockedAdd(_Histogram[localThreadId].w, h.w); // Luminance
+    }
+}
+
+// Scaling pass
+groupshared uint4 gs_pyramid[256];
+
+#pragma kernel KHistogramScale
+[numthreads(16,16,1)]
+void KHistogramScale(uint2 groupThreadId : SV_GroupThreadID)
+{
+    const uint localThreadId = groupThreadId.y * 16 + groupThreadId.x;
+    gs_pyramid[localThreadId] = _Histogram[localThreadId];
+
+    GroupMemoryBarrierWithGroupSync();
+
+    // Parallel reduction to find the max value
+    UNITY_UNROLL
+    for(uint i = 256 >> 1; i > 0; i >>= 1)
+    {
+        if(localThreadId < i)
+            gs_pyramid[localThreadId] = max(gs_pyramid[localThreadId], gs_pyramid[localThreadId + i]);
+
+        GroupMemoryBarrierWithGroupSync();
+    }
+
+    // Actual scaling
+    float4 factor = _Res.y / (float4)gs_pyramid[0];
+    _Histogram[localThreadId] = (uint4)round(_Histogram[localThreadId] * factor);
+}
+
+#pragma kernel KHistogramClear
+[numthreads(GROUP_SIZE, GROUP_SIZE, 1)]
+void KHistogramClear(uint2 dispatchThreadId : SV_DispatchThreadID)
+{
+    if (dispatchThreadId.x < (uint)_Res.x && dispatchThreadId.y < (uint)_Res.y)
+        _Histogram[dispatchThreadId.y * _Res.x + dispatchThreadId.x] = uint4(0u, 0u, 0u, 0u);
+}