Merge pull request #197 from De-Panther/ios_small_fix

Ugly hack to fix WebXR Viewer viewports on iOS

Author: De-Panther

Packages/webxr/CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Another ugly hack to fix WebXR Viewer viewports on iOS.
 
 ## [0.14.0] - 2021-12-26
 ### Fixed

Packages/webxr/Runtime/Plugins/WebGL/webxr.jspre

@@ -1015,7 +1015,7 @@ setTimeout(function () {
                 leftRect.w = (viewport.width / glLayer.framebufferWidth) * (glLayer.framebufferWidth / this.canvas.width);
                 leftRect.h = (viewport.height / glLayer.framebufferHeight) * (glLayer.framebufferHeight / this.canvas.height);
               }
-            } else if (view.eye === 'right' && viewport.width != 0 && viewport.height != 0) {
+            } else if (view.eye === 'right' && viewport.width != 0 && viewport.height != 0 && viewport.x != 0) { // Ugly hack for iOS Mozilla WebXR Viewer
               eyeCount = 2;
               if (viewport) {
                 rightRect.x = (viewport.x / glLayer.framebufferWidth) * (glLayer.framebufferWidth / this.canvas.width);