diff --git a/client/shaders/fog.gdshader b/client/shaders/fog.gdshader
index 99dcb17a4..1505d3268 100644
--- a/client/shaders/fog.gdshader
+++ b/client/shaders/fog.gdshader
@@ -63,56 +63,55 @@ void fragment() {
     vec2 tex_uv = (tile - map_offset) / map_size;
 
     // Outside known map -> unexplored
+    // Note: no early return — fragment() in OpenGL3 compat doesn't support return.
     if (tex_uv.x < 0.0 || tex_uv.x > 1.0 || tex_uv.y < 0.0 || tex_uv.y > 1.0) {
         COLOR = vec4(UNEXPLORED_COLOR, 1.0);
-        return;
-    }
 
     // Debug mode: render raw exploration texture (bypass fog rendering).
     // Green = EXP_VISIBLE (255), blue = EXP_EXPLORED (128), red = EXP_UNEXPLORED (0).
-    if (debug_exploration) {
-        float explored = texture(exploration_tex, tex_uv).r;
-        if (explored > 0.9) {
-            COLOR = vec4(0.0, explored, 0.0, 0.8);       // Green: currently visible
-        } else if (explored > 0.1) {
-            COLOR = vec4(0.0, 0.0, explored * 2.0, 0.8);  // Blue: explored
+    } else if (debug_exploration) {
+        float explored_dbg = texture(exploration_tex, tex_uv).r;
+        if (explored_dbg > 0.9) {
+            COLOR = vec4(0.0, explored_dbg, 0.0, 0.8);       // Green: currently visible
+        } else if (explored_dbg > 0.1) {
+            COLOR = vec4(0.0, 0.0, explored_dbg * 2.0, 0.8);  // Blue: explored
         } else {
-            COLOR = vec4(0.5, 0.0, 0.0, 0.8);             // Red: unexplored
+            COLOR = vec4(0.5, 0.0, 0.0, 0.8);                 // Red: unexplored
         }
-        return;
-    }
 
-    float vis_raw = texture(visibility_tex, tex_uv).r;
-    float vis = sample_visibility(tex_uv);
-    float explored_raw = texture(exploration_tex, tex_uv).r;
-    float explored = sample_exploration(tex_uv);
-
-    // Prevent gradient bleed into never-explored tiles (use raw, unblurred value)
-    if (explored_raw < 0.01 && vis_raw < 0.01) {
-        vis = 0.0;
-    }
-
-    if (explored < 0.01 && vis < 0.01) {
-        // Unexplored: solid near-black — information zero
-        COLOR = vec4(UNEXPLORED_COLOR, 1.0);
     } else {
-        // Fog noise — 8-10s breathe cycle, ±0.05 symmetric around baseline
-        float noise_val = texture(noise_tex, tile * 0.03 + vec2(time * 0.11, time * 0.07)).r;
-        float fog_alpha = 0.30 + (noise_val * 2.0 - 1.0) * 0.05;  // 0.25-0.35
+        float vis_raw = texture(visibility_tex, tex_uv).r;
+        float vis = sample_visibility(tex_uv);
+        float explored_raw = texture(exploration_tex, tex_uv).r;
+        float explored = sample_exploration(tex_uv);
 
-        // Zone temperature tint (D-046/D-077): subtle warm/cool/neutral per zone
-        vec3 zone_tint = texture(zone_tint_tex, tex_uv).rgb;
+        // Prevent gradient bleed into never-explored tiles (use raw, unblurred value)
+        if (explored_raw < 0.01 && vis_raw < 0.01) {
+            vis = 0.0;
+        }
 
-        // Clarity ramp: transparent inside cone, light fog at edges and beyond
-        float clarity = smoothstep(0.0, 0.85, vis);
-        float alpha = mix(fog_alpha, 0.0, clarity);
-        vec3 color = mix(zone_tint, vec3(0.0), clarity);
+        if (explored < 0.01 && vis < 0.01) {
+            // Unexplored: solid near-black — information zero
+            COLOR = vec4(UNEXPLORED_COLOR, 1.0);
+        } else {
+            // Fog noise — 8-10s breathe cycle, ±0.05 symmetric around baseline
+            float noise_val = texture(noise_tex, tile * 0.03 + vec2(time * 0.11, time * 0.07)).r;
+            float fog_alpha = 0.30 + (noise_val * 2.0 - 1.0) * 0.05;  // 0.25-0.35
 
-        // Soft edge between explored and unexplored (blurred to avoid staircase)
-        float exp_fade = smoothstep(0.0, 0.3, explored);
-        alpha = mix(1.0, alpha, exp_fade);
-        color = mix(UNEXPLORED_COLOR, color, exp_fade);
+            // Zone temperature tint (D-046/D-077): subtle warm/cool/neutral per zone
+            vec3 zone_tint = texture(zone_tint_tex, tex_uv).rgb;
 
-        COLOR = vec4(color, alpha);
+            // Clarity ramp: transparent inside cone, light fog at edges and beyond
+            float clarity = smoothstep(0.0, 0.85, vis);
+            float alpha = mix(fog_alpha, 0.0, clarity);
+            vec3 color = mix(zone_tint, vec3(0.0), clarity);
+
+            // Soft edge between explored and unexplored (blurred to avoid staircase)
+            float exp_fade = smoothstep(0.0, 0.3, explored);
+            alpha = mix(1.0, alpha, exp_fade);
+            color = mix(UNEXPLORED_COLOR, color, exp_fade);
+
+            COLOR = vec4(color, alpha);
+        }
     }
 }
diff --git a/client/tests/golden/visual/cursor_menu.png b/client/tests/golden/visual/cursor_menu.png
new file mode 100644
index 000000000..5d403fd90
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diff --git a/client/tests/golden/visual/dialogue_open.png b/client/tests/golden/visual/dialogue_open.png
new file mode 100644
index 000000000..57a77426e
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diff --git a/client/tests/golden/visual/dialogue_with_monologue.png b/client/tests/golden/visual/dialogue_with_monologue.png
new file mode 100644
index 000000000..7140a3edd
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diff --git a/client/tests/golden/visual/fog_3state.png b/client/tests/golden/visual/fog_3state.png
new file mode 100644
index 000000000..752ebef08
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diff --git a/client/tests/golden/visual/fog_boundary.png b/client/tests/golden/visual/fog_boundary.png
new file mode 100644
index 000000000..534ab85fd
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diff --git a/client/tests/golden/visual/fog_debug.png b/client/tests/golden/visual/fog_debug.png
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index 000000000..050a5604b
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diff --git a/client/tests/golden/visual/fog_diagonal.png b/client/tests/golden/visual/fog_diagonal.png
new file mode 100644
index 000000000..d7442dc6a
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diff --git a/client/tests/golden/visual/fog_zone_tint.png b/client/tests/golden/visual/fog_zone_tint.png
new file mode 100644
index 000000000..ac4ad7515
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diff --git a/client/tests/golden/visual/hud_default.png b/client/tests/golden/visual/hud_default.png
new file mode 100644
index 000000000..bbe799534
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diff --git a/client/tests/golden/visual/minimap_stance.png b/client/tests/golden/visual/minimap_stance.png
new file mode 100644
index 000000000..77839577a
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diff --git a/client/tests/golden/visual/npc_in_fog.png b/client/tests/golden/visual/npc_in_fog.png
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index 000000000..3754bfc5e
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