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Refactor mesh selection into shared handler and improve camera focus selection behavior #604

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Merged
tracygardner merged 2 commits into from
May 4, 2026
+32 −27
Merged

Refactor mesh selection into shared handler and improve camera focus selection behavior #604

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b3c15cf
Make F-key focus reuse select gizmo mesh selection
tracygardner May 4, 2026
300b9d7
Ensure F-focus selection enables mesh bounding box
tracygardner May 4, 2026
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59 changes: 32 additions & 27 deletions ui/gizmos.js
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Original file line number Diff line number Diff line change
Expand Up @@ -380,6 +380,7 @@ function focusCameraOnMesh() {
if (mesh && mesh.name === "ground") mesh = null;
}
if (!mesh) return;
applyMeshSelection(mesh);

mesh.computeWorldMatrix(true);
const { min, max } = mesh.getHierarchyBoundingVectors(true);
Expand All @@ -401,6 +402,36 @@ function focusCameraOnMesh() {
camera.setTarget(newTarget);
}

function applyMeshSelection(pickedMesh, pickedPoint) {
if (pickedMesh && pickedMesh.name !== "ground") {
if (pickedMesh.parent) {
pickedMesh = getRootMesh(pickedMesh.parent);
pickedMesh.visibility = 0.001;
}
const block = meshMap[pickedMesh?.metadata?.blockKey];
highlightBlockById(Blockly.getMainWorkspace(), block);
gizmoManager.attachToMesh(pickedMesh);
enableBoundingBox(pickedMesh);
return;
}

if (pickedMesh && pickedMesh.name === "ground") {
const roundedPosition = roundVectorToFixed(pickedPoint, 2);
flock.printText({
text: translate("position_readout").replace(
"{position}",
String(roundedPosition),
),
duration: 30,
color: "black",
});
}
if (gizmoManager.attachedMesh) {
resetChildMeshesOfAttachedMesh();
gizmoManager.attachToMesh(null);
}
Comment on lines +429 to +432
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@coderabbitai coderabbitai Bot May 4, 2026

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⚠️ Potential issue | 🟠 Major | ⚡ Quick win

Composite mesh root visibility is not restored on deselect — visual regression

When a composite (e.g. glTF) mesh is selected, applyMeshSelection sets its root's visibility to 0.001 (line 409) so the bounding box renders. On deselect, the deselect path (lines 429-432) calls resetChildMeshesOfAttachedMesh() and gizmoManager.attachToMesh(null). The patched attachToMesh internally calls resetAttachedMesh → hideBoundingBox, but neither path calls resetBoundingBoxVisibilityIfManuallyChanged, so the root mesh's visibility stays at 0.001 — the model remains fractionally visible after being "deselected".

turnOffAllGizmos handles this correctly (line 1920), but it is not in the click-to-deselect flow.

🐛 Proposed fix 
  if (gizmoManager.attachedMesh) {
+   resetBoundingBoxVisibilityIfManuallyChanged(gizmoManager.attachedMesh);
    resetChildMeshesOfAttachedMesh();
    gizmoManager.attachToMesh(null);
  }
🤖 Prompt for AI Agents 
Verify each finding against the current code and only fix it if needed.

In `@ui/gizmos.js` around lines 429 - 432, The deselect path leaves a composite
root's visibility at 0.001 because resetBoundingBoxVisibilityIfManuallyChanged
isn't called; update the click-to-deselect flow so after
resetChildMeshesOfAttachedMesh() (and before or after
gizmoManager.attachToMesh(null)) you explicitly call
resetBoundingBoxVisibilityIfManuallyChanged for the previously attached mesh (or
invoke the same sequence turnOffAllGizmos uses) so the root mesh visibility is
restored; reference functions: applyMeshSelection,
resetChildMeshesOfAttachedMesh, resetBoundingBoxVisibilityIfManuallyChanged,
resetAttachedMesh, hideBoundingBox, gizmoManager.attachToMesh, and
turnOffAllGizmos to locate where to insert the call.

}

function viewMeshWithCamera() {
let mesh = gizmoManager.attachedMesh;
if (mesh && mesh.name === "ground") mesh = null;
Expand Down Expand Up @@ -1774,34 +1805,8 @@ function handleSelectGizmo() {
duration: 30,
color: "black",
});
if (flock.meshDebug) console.log(pickedMesh.parent);
if (pickedMesh.parent) {
pickedMesh = getRootMesh(pickedMesh.parent);
if (flock.meshDebug) console.log(pickedMesh.visibility);
pickedMesh.visibility = 0.001;
if (flock.meshDebug) console.log(pickedMesh.visibility);
}
const block = meshMap[pickedMesh?.metadata?.blockKey];
highlightBlockById(Blockly.getMainWorkspace(), block);
gizmoManager.attachToMesh(pickedMesh);
pickedMesh.showBoundingBox = true;
} else {
if (pickedMesh && pickedMesh.name === "ground") {
const roundedPosition = roundVectorToFixed(pickedPoint, 2);
flock.printText({
text: translate("position_readout").replace(
"{position}",
String(roundedPosition),
),
duration: 30,
color: "black",
});
}
if (gizmoManager.attachedMesh) {
resetChildMeshesOfAttachedMesh();
gizmoManager.attachToMesh(null);
}
}
applyMeshSelection(pickedMesh, pickedPoint);
setTimeout(() => {
if (!getCanvasCircle()) document.body.style.cursor = "crosshair";
}, 0);
Expand Down
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