More map work and missed points

shaders/map_point.gdshader

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+shader_type canvas_item;
+render_mode unshaded;
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
+uniform vec4 add_color : source_color = vec4(1.0);
+uniform sampler2D fringe_color;
+uniform float fringe_threshold;
+uniform float threshold;
+varying vec4 global_center;
+varying vec4 screen_center;
+void vertex() {
+	 vec4 local_center = vec4(0.0, 0.0, 0.0, 1.0); 
+
+    // Transform local center to global coordinates
+    global_center = CANVAS_MATRIX * local_center;
+	// Called for every vertex the material is visible on.
+}
+
+void fragment() {
+	// Called for every pixel the material is visible on.
+	vec4 color = texture(screen_texture, SCREEN_UV);
+	vec4 acol = add_color;
+	acol.a = min(acol.a, color.a);
+	//COLOR = mix(color, add_color, acol.a);
+	vec2 ucrd = vec2(UV.x - 0.5, UV.y - 0.5) * 2.0;
+	float d = ucrd.x * ucrd.x + ucrd.y * ucrd.y;
+	if(d < threshold * threshold){
+		float ft = threshold - fringe_threshold;
+		if(d < ft *  ft){
+			COLOR = vec4(mix(color.rgb, add_color.rgb, acol.a), color.a);
+		}else{
+			vec4 f_col = texture(fringe_color, vec2((pow(d, .5) - ft)/fringe_threshold));
+			COLOR = vec4(mix(color.rgb, f_col.rgb, acol.a), color.a);
+		}
+	}else{
+		COLOR = vec4(UV, 0, 0);	
+	}
+	
+}
+
+//void light() {
+//	// Called for every pixel for every light affecting the CanvasItem.
+//	// Uncomment to replace the default light processing function with this one.
+//}

shaders/map_point.gdshader.uid

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+uid://m6q35taes6nx