From 0e60951ec91ef730adc4f902a41a880c292c77f1 Mon Sep 17 00:00:00 2001
From: Onek8 <mail@1k8.org>
Date: Wed, 2 Jul 2025 05:14:05 +0000
Subject: [PATCH] t3du - Restore VR code

---
 leenkx/Sources/iron/object/CameraObject.hx | 32 +++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/leenkx/Sources/iron/object/CameraObject.hx b/leenkx/Sources/iron/object/CameraObject.hx
index 36f8ab9..fb52933 100644
--- a/leenkx/Sources/iron/object/CameraObject.hx
+++ b/leenkx/Sources/iron/object/CameraObject.hx
@@ -30,12 +30,22 @@ class CameraObject extends Object {
 	static var sphereCenter = new Vec4();
 	static var vcenter = new Vec4();
 	static var vup = new Vec4();
-
+	
+	#if lnx_vr
+	var helpMat = Mat4.identity();
+	public var leftV = Mat4.identity();
+	public var rightV = Mat4.identity();
+	#end
+	
 	public function new(data: CameraData) {
 		super();
 
 		this.data = data;
 
+		#if lnx_vr
+		iron.system.VR.initButton();
+		#end
+		
 		buildProjection();
 
 		V = Mat4.identity();
@@ -117,6 +127,26 @@ class CameraObject extends Object {
 		V.getInverse(transform.world);
 		VP.multmats(P, V);
 
+
+		#if lnx_vr
+		var vr = kha.vr.VrInterface.instance;
+		if (vr != null && vr.IsPresenting()) {
+			leftV.setFrom(V);
+			helpMat.self = vr.GetViewMatrix(0);
+			leftV.multmat(helpMat);
+
+			rightV.setFrom(V);
+			helpMat.self = vr.GetViewMatrix(1);
+			rightV.multmat(helpMat);
+		}
+		else {
+			leftV.setFrom(V);
+		}
+		VP.multmats(P, leftV);
+		#else
+		VP.multmats(P, V);
+		#end
+
 		if (data.raw.frustum_culling) {
 			buildViewFrustum(VP, frustumPlanes);
 		}