feat(useWebGLWatchdog): attach volume mapper stats

Author: floryst

src/composables/useWebGLWatchdog.ts

@@ -1,17 +1,53 @@
 import { captureMessage } from '@sentry/vue';
 import vtkViewProxy from '@kitware/vtk.js/Proxy/Core/ViewProxy';
+import vtkProxyManager from '@kitware/vtk.js/Proxy/Core/ProxyManager';
 import { useEventListener, useThrottleFn } from '@vueuse/core';
+import { Maybe } from '@/src/types';
+import { useProxyManager } from '@/src/composables/proxyManager';
 import { Messages } from '../constants';
 import { useMessageStore } from '../store/messages';
 import { onProxyManagerEvent, ProxyManagerEvent } from './onProxyManagerEvent';
 
+/**
+ * Collects relevant context for debugging 3D crashes.
+ * @returns
+ */
+function getVolumeMapperContext(pxm: Maybe<vtkProxyManager>) {
+  if (!pxm) return null;
+
+  const view3d = pxm.getViews().find((view) => view.isA('vtkLPSView3DProxy'));
+  if (!view3d) return null;
+
+  const ren = view3d.getRenderer();
+  const vol = ren.getVolumes()[0];
+  if (!vol) return null;
+
+  const mapper = vol.getMapper();
+  if (!mapper) return null;
+
+  return mapper.get(
+    'computeNormalFromOpacity',
+    'autoAdjustSampleDistances',
+    'maximumSamplesPerRay',
+    'sampleDistance',
+    'volumetricScatteringBlending'
+  );
+}
+
 export function useWebGLWatchdog() {
   const watchdogs = new Map<string, () => void>();
+  const pxm = useProxyManager();
 
   const reportError = useThrottleFn(() => {
     const messageStore = useMessageStore();
     messageStore.addError(Messages.WebGLLost.title, Messages.WebGLLost.details);
-    captureMessage('WebGL2 context was lost');
+    captureMessage('WebGL2 context was lost', {
+      contexts: {
+        vtk: {
+          volumeMapper: getVolumeMapperContext(pxm),
+        },
+      },
+    });
   }, 150);
 
   onProxyManagerEvent(ProxyManagerEvent.ProxyCreated, (id, obj) => {