Added multisampling to shader

scenes/main_render.gdshader

@@ -1,6 +1,7 @@
 shader_type canvas_item;
 
 uniform vec2 target_tex_size = vec2(1280,720);
+uniform int sample_count:hint_range(1, 20) = 1;
 
 uniform float color_steps:hint_range(1.0, 255.0, 1.0);
 uniform sampler2D color_curve;
@@ -10,12 +11,31 @@ void vertex() {
 	// Called for every vertex the material is visible on.
 }
 
+vec2 spiralPoint(float t, float spacing)
+{
+    float b = spacing / (2.0 * PI);
+    float r = b * t;
+
+    return vec2(
+        r * cos(t),
+        r * sin(t)
+    );
+}
+
 void fragment() {
 	//vec2 texSize = vec2(textureSize(TEXTURE,0)); // For performance reasons, this function should be avoided as it always performs a full texture read. When possible, you should pass the texture size as a uniform instead.
 	//texSize = texSize / 4.;
 	ivec2 intUv = ivec2(target_tex_size * UV);
 	vec2 flooredUv = vec2(intUv) / target_tex_size;
-	vec3 fullColor = texture(TEXTURE,flooredUv).rgb;
+	vec2 uvPixelWidth = 1. / target_tex_size;
+
+	vec3 fullColor = vec3(0);
+	for(int i = 0;i<sample_count;i++){
+		float f = float(i);
+		fullColor += texture(TEXTURE,flooredUv+spiralPoint(f*2.,uvPixelWidth.x / (float(sample_count)/6.283))).rgb;
+	}
+	fullColor /= float(sample_count);
+	
 	vec3 strechedColor = vec3(
 		texture(color_curve,vec2(fullColor.r,0)).r,
 		texture(color_curve,vec2(fullColor.g,0)).g,