сохранение/загрузка в эмс-г на доработке

Shaders/ray_litera_1.gdshader

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+shader_type canvas_item;
+
+uniform vec4 color_signal: source_color;
+uniform float turn = 0.785;
+uniform float inner_radius = 0.32;
+uniform float speed = 0.0;
+
+const float outer_radius = 0.109;
+const float zoom = 50.0;
+const float size = 5.0;
+const float blur = 0.000001;
+const float fill_ratio = 0.03;
+
+
+float remap(float i_min, float i_max, float o_min, float o_max, float val) {
+	float t = (val - i_min) / (i_max - i_min);
+	return o_min + (o_max - o_min) * t;
+}
+
+
+float mask(vec2 uv, float value)
+{
+	float r = atan(uv.x, uv.y);
+	r = remap(-PI, PI, 0.0, 1.0, r);
+	r = step(r, value * 0.5);
+	
+	uv.x = uv.x + 1.0;
+	uv.x = uv.x * -1.0;
+	uv.x += 1.0;
+	float l = atan(uv.x, uv.y);
+	l = remap(-PI, PI, 0.0, 1.0, l);
+	l = step(l, value * 0.5);
+	
+	return r + l ;
+}
+
+
+vec2 rotate_uv(vec2 uv, vec2 pivot, float rotation) {
+    float cosa = cos(rotation);
+    float sina = sin(rotation);
+    uv -= pivot;
+    return vec2(
+        cosa * uv.x - sina * uv.y,
+        cosa * uv.y + sina * uv.x 
+    ) + pivot;
+}
+
+
+float circle(vec2 uv, float value)
+{   
+	float d = length(uv);
+	float t = smoothstep(
+		inner_radius + blur,
+		inner_radius - blur,
+		d
+	) - smoothstep(
+		outer_radius + blur,
+		outer_radius - blur,
+		d
+	);   
+
+	return t;
+}
+
+
+void fragment(){
+	float d = length((UV-0.5)*2.0);
+	float t = pow(smoothstep(0.9,0.2,d),0.35);
+	vec2 uv = (UV * 2.0) - 1.0;
+
+	vec3 rainbow = 0.5*cos(TIME+UV.xyx+vec3(0,2,4));
+	vec4 color = vec4(rainbow.rgb,1.0);
+	vec2 origin = vec2(0.0, 0.0);
+	color = vec4(color_signal.rgb,1.0);
+    uv = rotate_uv(uv, origin, turn * TAU);
+    float c = circle(uv, 0.5);
+    float mask = mask(uv, fill_ratio);
+	d = sin(zoom*d - speed*TIME);
+	//d = abs(d);
+	d = size/d;
+	color *= d*t;
+	
+	COLOR = vec4(color * mask * c);
+}