update blobs

This commit is contained in:
2026-05-19 03:50:24 +02:00
parent f89236f51e
commit 0a84c822d5
+6 -3
View File
@@ -73,7 +73,9 @@ void BlobGroup::markShapeDirty(BlobShape* source) {
source->polish();
source->update();
// Use cached padded rects to find spatial neighbors
// Use actual current geometry (not cached rects) to find spatial neighbors.
// Cached rects can be stale when multiple shapes move simultaneously,
// causing the blob background to desync from panels that changed size.
const float pad = static_cast<float>(m_smoothing) * 2.0f;
const QRectF srcRect(static_cast<double>(source->m_cachedPaddedX - pad),
static_cast<double>(source->m_cachedPaddedY - pad), static_cast<double>(source->m_cachedPaddedW + pad * 2.0f),
@@ -82,8 +84,9 @@ void BlobGroup::markShapeDirty(BlobShape* source) {
for (auto* shape : std::as_const(m_shapes)) {
if (shape == source)
continue;
const QRectF otherRect(static_cast<double>(shape->m_cachedPaddedX), static_cast<double>(shape->m_cachedPaddedY),
static_cast<double>(shape->m_cachedPaddedW), static_cast<double>(shape->m_cachedPaddedH));
const QPointF shapeScene = shape->mapToScene(QPointF(0, 0));
const QRectF otherRect(shapeScene.x(), shapeScene.y(),
static_cast<double>(shape->width()), static_cast<double>(shape->height()));
if (srcRect.intersects(otherRect)) {
shape->polish();
shape->update();