scene manager :)

assets/shaders/test_filter.gdshader

@@ -0,0 +1,15 @@
+shader_type canvas_item;
+
+uniform sampler2D SCREEN_TEXTURE : hint_screen_texture;
+
+vec2 warp(vec2 uv) {
+	return vec2(
+		uv.x + sin(TIME + uv.y * 50.0) * 0.005,
+		uv.y
+	);
+}
+
+void fragment() {
+	vec2 uv = warp(SCREEN_UV);
+	COLOR = texture(SCREEN_TEXTURE, uv);
+}