Overlay the user Shaders/ over the shared one to avoid copying files

Data/Sys/Shaders/emboss.glsl

@@ -0,0 +1,24 @@
+uniform sampler2D samp9;
+
+out vec4 ocol0;
+in vec2 uv0;
+
+uniform vec4 resolution;
+
+void main()
+{
+  float4 c0 = texture(samp9, uv0).rgba;
+  float4 c1 = texture(samp9, uv0 + float2(5,5)*resolution.zw).rgba;
+  float y = (0.222 * c1.r) + (0.707 * c1.g) + (0.071 * c1.b);
+  float y2 = ((0.222 * c0.r) + (0.707 * c0.g) + (0.071 * c0.b)) / 3;
+  float red   = c0.r;
+  float green = c0.g;
+  float blue  = c0.b;
+  float alpha = c0.a;
+  
+  red   = y2 + (1 - y);
+  green = y2 + (1 - y);
+  blue  = y2 + (1 - y);
+
+  ocol0 = float4(red, green, blue, alpha);
+}