anime (#62)

* кумыс шейдер

* crt shader

Resources/Textures/Shaders/White/anime.swsl

@@ -0,0 +1,31 @@
+const highp float shake_power = 0.03;
+const highp float shake_block_size = 30.5;
+const highp float fade = 0.01;
+const highp vec2 direction_r = vec2( 1.0, 0.0 );
+const highp vec2 direction_g = vec2( 0.4, 1.0 );
+const highp vec2 direction_b = vec2( -0.7, -0.3 );
+uniform sampler2D SCREEN_TEXTURE;
+
+highp float random (highp float seed)
+{
+    return fract ( 543.2543 * sin( dot( vec2( seed, seed ), vec2( 3525.46, -54.3415 ) ) ) );
+}
+
+void fragment()
+{
+    highp vec2 fixed_uv = UV;
+    fixed_uv.x += (
+    random(
+        ( trunc( UV.y * shake_block_size ) / shake_block_size )
+        +   TIME
+    ) - 0.5
+    ) * shake_power * ( fade * 12.0 );
+
+    COLOR = vec4(
+        textureLod( SCREEN_TEXTURE, fixed_uv + normalize( direction_r ) * fade, 0.0 ).r
+    ,   textureLod( SCREEN_TEXTURE, fixed_uv + normalize( direction_g ) * fade, 0.0 ).g
+    ,   textureLod( SCREEN_TEXTURE, fixed_uv + normalize( direction_b ) * fade, 0.0 ).b
+    ,   0.0
+    ) * ( 1.0 - fade );
+    COLOR.a = 1.0;
+}