new outline shader

Shaders/outline.gdshader

@@ -0,0 +1,25 @@
+shader_type spatial;
+render_mode cull_front, unshaded;
+
+uniform bool is_active;
+
+const vec3 color = vec3(0.95, 0.71, 0.01);
+const float thickness = 0.1;
+
+void vertex() {
+	if(is_active) {
+		VERTEX  += NORMAL * thickness;
+	}
+}
+
+void fragment() {
+	if (is_active) {
+		ALBEDO = color;
+		ALPHA = 0.5;
+	}
+}
+
+//void light() {
+//	// Called for every pixel for every light affecting the material.
+//	// Uncomment to replace the default light processing function with this one.
+//}