shouldResetCamera reset fix

CHANGELOG.md

@@ -6,6 +6,10 @@ Note that since we don't clearly distinguish between a public and private interf
 
 ## [Unreleased]
 
+## [v3.0.0-dev.5] - 2021-12-16
+
+- Fix initial camera reset not triggering for some entries.
+
 ## [v3.0.0-dev.4] - 2021-12-14
 
 - Add ``bumpiness`` (per-object and per-group), ``bumpFrequency`` & ``bumpAmplitude`` (per-object) render parameters (#299)

src/mol-canvas3d/canvas3d.ts

@@ -514,7 +514,7 @@ namespace Canvas3D {
 
             if (camera.transition.inTransition || nextCameraResetSnapshot) return false;
 
-            let cameraSphereOverlapsNone = true;
+            let cameraSphereOverlapsNone = true, isEmpty = true;
             Sphere3D.set(cameraSphere, camera.state.target, camera.state.radius);
 
             // check if any renderable has moved outside of the old bounding sphere
@@ -525,12 +525,13 @@ namespace Canvas3D {
                 const b = r.values.boundingSphere.ref.value;
                 if (!b.radius) continue;
 
+                isEmpty = false;
                 const cameraDist = Vec3.distance(cameraSphere.center, b.center);
                 if ((cameraDist > cameraSphere.radius || cameraDist > b.radius || b.radius > camera.state.radiusMax) && !Sphere3D.includes(oldBoundingSphereVisible, b)) return true;
                 if (Sphere3D.overlaps(cameraSphere, b)) cameraSphereOverlapsNone = false;
             }
-
-            return cameraSphereOverlapsNone;
+            
+            return cameraSphereOverlapsNone || (!isEmpty && cameraSphere.radius <= 0.1);
         }
 
         const sceneCommitTimeoutMs = 250;