Add Night Station beta-7 StoryQuest

scenes/quests/story_quests/estation _echo_9/0_intro/Shader/estation _echo_9_shader.gdshader

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+shader_type canvas_item;
+render_mode unshaded, skip_vertex_transform;
+
+const float curvature = 7.0;
+const float vignette_multiplier = 1.0;
+
+uniform sampler2D screen_texture: hint_screen_texture, filter_linear_mipmap;
+
+// Función de ruido simple para el jitter
+float rand(vec2 co) {
+    return fract(sin(dot(co.xy, vec2(12.9898,78.233))) * 43758.5453);
+}
+
+void fragment() {
+    // Movimiento sutil tipo VHS - wobble y jitter
+    float time_factor = TIME * 0.5;
+    vec2 wobble_uv = SCREEN_UV;
+
+    // Efecto de wobble (oscilación suave)
+    wobble_uv.x += sin(wobble_uv.y * 20.0 + time_factor) * 0.001;
+    wobble_uv.y += cos(wobble_uv.x * 15.0 + time_factor * 1.2) * 0.0008;
+
+    // Jitter aleatorio sutil
+    wobble_uv.x += (rand(vec2(time_factor, wobble_uv.y)) - 0.5) * 0.002;
+    wobble_uv.y += (rand(vec2(wobble_uv.x, time_factor * 1.5)) - 0.5) * 0.001;
+
+    // Distorsión de curvatura
+    vec2 centered_uv = wobble_uv * 2.0 - 1.0;
+    vec2 uv_offset = centered_uv.yx / curvature;
+    vec2 warped_uv = centered_uv + centered_uv * uv_offset * uv_offset;
+
+    // Efectos visuales VHS
+    vec3 cutoff = vec3(step(abs(warped_uv.x), 1.0) * step(abs(warped_uv.y), 1.0));
+
+    // Scanlines dinámicos
+    float scanline_speed = 1.0;
+    vec3 scanlines = vec3(sin((warped_uv.y + time_factor * 0.1) * 180.0) * 0.1 + 0.9);
+
+    // Vignette
+    vec3 vignette = vec3(length(pow(abs(centered_uv), vec2(4.0)) / 3.0));
+
+    // Color final con todos los efectos
+    vec3 screen_color = textureLod(screen_texture, (warped_uv + 1.0) / 2.0, 0.2).rgb * cutoff * scanlines;
+    screen_color -= vignette * vignette_multiplier;
+
+    COLOR = vec4(screen_color, 1.0);
+}

scenes/quests/story_quests/estation _echo_9/0_intro/Shader/estation _echo_9_shader.gdshader.uid

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+uid://di1yvo812ri4x