From 1e4a1e269bb00caa639dcbfe346e1f7ff6d357fb Mon Sep 17 00:00:00 2001
From: kpal <kpal81xd@gmail.com>
Date: Wed, 1 May 2024 15:44:31 +0100
Subject: [PATCH] quick optimization to use tmp ray and plane for pan
 calculation

---
 src/cameras/multi-camera.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/cameras/multi-camera.ts b/src/cameras/multi-camera.ts
index d7d66c9..d64026e 100644
--- a/src/cameras/multi-camera.ts
+++ b/src/cameras/multi-camera.ts
@@ -11,6 +11,8 @@ type PointerMoveEvent = PointerEvent & {
 const tmpVa = new Vec2();
 const tmpV1 = new Vec3();
 const tmpV2 = new Vec3();
+const tmpR1 = new Ray();
+const tmpP1 = new Plane();
 
 const PASSIVE: any = { passive: false };
 
@@ -262,8 +264,8 @@ class MultiCamera extends BaseCamera {
         const focalPos = tmpV2.add2(cameraPos, focusDirScaled);
         const planeNormal = focusDirScaled.mulScalar(-1).normalize();
 
-        const plane = new Plane(planeNormal, -planeNormal.dot(focalPos));
-        const ray = new Ray(cameraPos, mouseW.sub(cameraPos).normalize());
+        const plane = tmpP1.setFromPointNormal(focalPos, planeNormal);
+        const ray = tmpR1.set(cameraPos, mouseW.sub(cameraPos).normalize());
 
         plane.intersectsRay(ray, point);
     }