diff --git a/lib/common/src/integer.rs b/lib/common/src/integer.rs
index 6fa3381..b75172f 100644
--- a/lib/common/src/integer.rs
+++ b/lib/common/src/integer.rs
@@ -654,6 +654,7 @@ pub struct Planar64Affine3{
 	pub translation:Planar64Vec3,
 }
 impl Planar64Affine3{
+	pub const IDENTITY:Self=Self::new(mat3::identity(),vec3::ZERO);
 	#[inline]
 	pub const fn new(matrix3:Planar64Mat3,translation:Planar64Vec3)->Self{
 		Self{matrix3,translation}