Adjusted Shader effects and added IdentityHider

src/main/resources/assets/mindmotion/shaders/program/desaturate.fsh

@@ -2,15 +2,49 @@
 
 uniform sampler2D DiffuseSampler;
 uniform float Desat;
+uniform float BlurAmount;   // NEW
+uniform float Vignette;     // NEW
+uniform float FogStrength;  // NEW
 
 in vec2 texCoord;
-in vec2 oneTexel; // required by sobel.vsh, even if unused
+in vec2 oneTexel;
 
 out vec4 fragColor;
 
+vec4 sampleBlur() {
+    if (BlurAmount <= 0.001) return texture(DiffuseSampler, texCoord);
+
+    // lighter blur kernel
+    float w = BlurAmount * 0.5; // reduce strength globally
+
+    vec4 sum = vec4(0.0);
+    sum += texture(DiffuseSampler, texCoord + oneTexel * vec2(-1,  0)) * w;
+    sum += texture(DiffuseSampler, texCoord + oneTexel * vec2( 1,  0)) * w;
+    sum += texture(DiffuseSampler, texCoord + oneTexel * vec2( 0, -1)) * w;
+    sum += texture(DiffuseSampler, texCoord + oneTexel * vec2( 0,  1)) * w;
+
+    // center weight higher to avoid total smudge
+    vec4 center = texture(DiffuseSampler, texCoord) * (1.0 - w * 4.0);
+
+    return center + sum;
+}
+
 void main() {
     vec4 col = texture(DiffuseSampler, texCoord);
+    vec4 blurred = sampleBlur();
+    col = mix(col, blurred, BlurAmount); // Apply blur
+
+    // Apply grayscale/desat
     float gray = dot(col.rgb, vec3(0.2126, 0.7152, 0.0722));
-    float d = clamp(Desat, 0.0, 1.0);
-    fragColor = vec4(mix(col.rgb, vec3(gray), d), col.a);
-}
+    col.rgb = mix(col.rgb, vec3(gray), clamp(Desat, 0.0, 1.0));
+
+    // Fog: push color toward light gray
+    col.rgb = mix(col.rgb, vec3(0.75, 0.75, 0.8), FogStrength);
+
+    // Vignette (darken edges)
+    float dist = distance(texCoord, vec2(0.5, 0.5));
+    float vign = smoothstep(0.3, 0.7, dist);
+    col.rgb = mix(col.rgb, col.rgb * 0.4, vign * Vignette);
+
+    fragColor = col;
+}

src/main/resources/assets/mindmotion/shaders/program/desaturate.json

@@ -54,6 +54,24 @@
       "values": [
         0.0
       ]
+    },
+    {
+      "name": "BlurAmount",
+      "type": "float",
+      "count": 1,
+      "values": [ 0.0 ]
+    },
+    {
+      "name": "Vignette",
+      "type": "float",
+      "count": 1,
+      "values": [ 0.0 ]
+    },
+    {
+      "name": "FogStrength",
+      "type": "float",
+      "count": 1,
+      "values": [ 0.0 ]
     }
   ]
 }