Added VFEZ

VFEZ/Shaders/Effects/vfez_vertex_expand.gdshaderinc

@@ -0,0 +1,18 @@
+group_uniforms vertex_expand;
+uniform vec3 vertex_expand_center = vec3(0.);
+uniform bool vertex_expand_ignore_center_vertical = false;
+uniform float vertex_expand_amount: hint_range(0.0, 10.) = 0.5;
+group_uniforms;
+
+vec3 vertex_expand(
+	vec3 vertex)
+{
+	vec3 final_expand_center = vertex_expand_center;
+	if (vertex_expand_ignore_center_vertical)
+	{
+		final_expand_center.z = vertex.z;
+	}
+	vec3 expand_dir = normalize(vertex - final_expand_center);
+	vertex += expand_dir * vertex_expand_amount;
+	return vertex;
+}