From 6d03b17c00ce961f786c25833deaeb25e4f51a10 Mon Sep 17 00:00:00 2001
From: Ibrahim <93064150+IbrahimCSAE@users.noreply.github.com>
Date: Wed, 4 Dec 2024 16:19:27 -0500
Subject: [PATCH] fix(camera): don't try to access renderer if it's undefined
 (#1674)

---
 packages/core/src/RenderingEngine/Viewport.ts       | 5 +++++
 packages/core/src/RenderingEngine/VolumeViewport.ts | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/packages/core/src/RenderingEngine/Viewport.ts b/packages/core/src/RenderingEngine/Viewport.ts
index 0f45996d0e..f01f80680a 100644
--- a/packages/core/src/RenderingEngine/Viewport.ts
+++ b/packages/core/src/RenderingEngine/Viewport.ts
@@ -1301,6 +1301,11 @@ class Viewport {
   protected getVtkActiveCamera(): vtkCamera | vtkSlabCamera {
     const renderer = this.getRenderer();
 
+    if (!renderer) {
+      console.warn('No renderer found for the viewport');
+      return null;
+    }
+
     return renderer.getActiveCamera();
   }
 
diff --git a/packages/core/src/RenderingEngine/VolumeViewport.ts b/packages/core/src/RenderingEngine/VolumeViewport.ts
index 03ba3dbf0f..259287c774 100644
--- a/packages/core/src/RenderingEngine/VolumeViewport.ts
+++ b/packages/core/src/RenderingEngine/VolumeViewport.ts
@@ -203,6 +203,12 @@ class VolumeViewport extends BaseVolumeViewport {
 
   protected setCameraClippingRange() {
     const activeCamera = this.getVtkActiveCamera();
+
+    if (!activeCamera) {
+      console.warn('No active camera found');
+      return;
+    }
+
     if (activeCamera.getParallelProjection()) {
       // which makes more sense. However, in situations like MPR where the camera is
       // oblique, the slab thickness might not be sufficient.