fix: sidebar bulge at connection with utilities

Basically make sidebar and utilities exclude each other from merging and
manually animate corner radius
Also format c++

modules/drawers/Drawers.qml

@@ -166,6 +166,15 @@ Variants {
                     panel: panels.sidebar
                     bar: bar
                     deformAmount: 0
+                    height: panel.height + 1
+                    exclude: [utilsBg]
+                    bottomLeftRadius: panels.sidebar.visible ? 0 : radius
+
+                    Behavior on bottomLeftRadius {
+                        Anim {
+                            duration: Appearance.anim.durations.expressiveDefaultSpatial
+                        }
+                    }
                 }
 
                 PanelBg {
@@ -193,6 +202,14 @@ Variants {
                     blobGroup: blobGroup
                     panel: panels.utilities
                     bar: bar
+                    exclude: [sidebarBg]
+                    topLeftRadius: panels.sidebar.visible ? 0 : radius
+
+                    Behavior on topLeftRadius {
+                        Anim {
+                            duration: Appearance.anim.durations.expressiveDefaultSpatial
+                        }
+                    }
                 }
 
                 PanelBg {

plugin/src/Caelestia/Blobs/blobgroup.cpp

@@ -74,20 +74,15 @@ void BlobGroup::markShapeDirty(BlobShape* source) {
 
     // Use cached padded rects to find spatial neighbors
     const float pad = static_cast<float>(m_smoothing) * 2.0f;
-    const QRectF srcRect(
+    const QRectF srcRect(static_cast<double>(source->m_cachedPaddedX - pad),
-        static_cast<double>(source->m_cachedPaddedX - pad),
+        static_cast<double>(source->m_cachedPaddedY - pad), static_cast<double>(source->m_cachedPaddedW + pad * 2.0f),
-        static_cast<double>(source->m_cachedPaddedY - pad),
-        static_cast<double>(source->m_cachedPaddedW + pad * 2.0f),
         static_cast<double>(source->m_cachedPaddedH + pad * 2.0f));
 
     for (auto* shape : std::as_const(m_shapes)) {
         if (shape == source)
             continue;
-        const QRectF otherRect(
+        const QRectF otherRect(static_cast<double>(shape->m_cachedPaddedX), static_cast<double>(shape->m_cachedPaddedY),
-            static_cast<double>(shape->m_cachedPaddedX),
+            static_cast<double>(shape->m_cachedPaddedW), static_cast<double>(shape->m_cachedPaddedH));
-            static_cast<double>(shape->m_cachedPaddedY),
-            static_cast<double>(shape->m_cachedPaddedW),
-            static_cast<double>(shape->m_cachedPaddedH));
         if (srcRect.intersects(otherRect)) {
             shape->polish();
             shape->update();

plugin/src/Caelestia/Blobs/blobgroup.hpp

@@ -11,8 +11,7 @@ class BlobInvertedRect;
 class BlobGroup : public QObject {
     Q_OBJECT
     QML_ELEMENT
-    Q_PROPERTY(qreal smoothing READ smoothing WRITE setSmoothing NOTIFY
+    Q_PROPERTY(qreal smoothing READ smoothing WRITE setSmoothing NOTIFY smoothingChanged)
-            smoothingChanged)
     Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
 
 public:

plugin/src/Caelestia/Blobs/blobinvertedrect.cpp

@@ -13,21 +13,36 @@ BlobInvertedRect::BlobInvertedRect(QQuickItem* parent)
 
 static void setFrameIndices(quint16* idx) {
     // Top strip: 0-1-4, 1-5-4
-    idx[0] = 0; idx[1] = 1; idx[2] = 4;
+    idx[0] = 0;
-    idx[3] = 1; idx[4] = 5; idx[5] = 4;
+    idx[1] = 1;
+    idx[2] = 4;
+    idx[3] = 1;
+    idx[4] = 5;
+    idx[5] = 4;
     // Right strip: 1-2-5, 2-6-5
-    idx[6] = 1; idx[7] = 2; idx[8] = 5;
+    idx[6] = 1;
-    idx[9] = 2; idx[10] = 6; idx[11] = 5;
+    idx[7] = 2;
+    idx[8] = 5;
+    idx[9] = 2;
+    idx[10] = 6;
+    idx[11] = 5;
     // Bottom strip: 2-3-6, 3-7-6
-    idx[12] = 2; idx[13] = 3; idx[14] = 6;
+    idx[12] = 2;
-    idx[15] = 3; idx[16] = 7; idx[17] = 6;
+    idx[13] = 3;
+    idx[14] = 6;
+    idx[15] = 3;
+    idx[16] = 7;
+    idx[17] = 6;
     // Left strip: 3-0-7, 0-4-7
-    idx[18] = 3; idx[19] = 0; idx[20] = 7;
+    idx[18] = 3;
-    idx[21] = 0; idx[22] = 4; idx[23] = 7;
+    idx[19] = 0;
+    idx[20] = 7;
+    idx[21] = 0;
+    idx[22] = 4;
+    idx[23] = 7;
 }
 
-QSGNode* BlobInvertedRect::updatePaintNode(
+QSGNode* BlobInvertedRect::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*) {
-    QSGNode* oldNode, UpdatePaintNodeData*) {
     if (!m_group) {
         delete oldNode;
         return nullptr;
@@ -55,9 +70,8 @@ QSGNode* BlobInvertedRect::updatePaintNode(
         delete oldNode;
         node = new QSGGeometryNode;
 
-        auto* geometry = new QSGGeometry(
+        auto* geometry =
-            QSGGeometry::defaultAttributes_TexturedPoint2D(), 8, 24,
+            new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 8, 24, QSGGeometry::UnsignedShortType);
-            QSGGeometry::UnsignedShortType);
         geometry->setDrawingMode(QSGGeometry::DrawTriangles);
         node->setGeometry(geometry);
         node->setFlag(QSGNode::OwnsGeometry);
@@ -105,13 +119,10 @@ QSGNode* BlobInvertedRect::updatePaintNode(
     material->m_color = m_group->color();
     material->m_hasInverted = m_cachedHasInverted ? 1 : 0;
     material->m_invertedRadius = m_cachedInvertedRadius;
-    memcpy(material->m_invertedOuter, m_cachedInvertedOuter,
+    memcpy(material->m_invertedOuter, m_cachedInvertedOuter, sizeof(m_cachedInvertedOuter));
-        sizeof(m_cachedInvertedOuter));
+    memcpy(material->m_invertedInner, m_cachedInvertedInner, sizeof(m_cachedInvertedInner));
-    memcpy(material->m_invertedInner, m_cachedInvertedInner,
-        sizeof(m_cachedInvertedInner));
 
-    const int count =
+    const int count = static_cast<int>(qMin(m_cachedRects.size(), qsizetype(16)));
-        static_cast<int>(qMin(m_cachedRects.size(), qsizetype(16)));
     material->m_rectCount = count;
     for (int i = 0; i < count; ++i)
         material->m_rects[i] = m_cachedRects[i];

plugin/src/Caelestia/Blobs/blobinvertedrect.hpp

@@ -7,14 +7,10 @@
 class BlobInvertedRect : public BlobShape {
     Q_OBJECT
     QML_ELEMENT
-    Q_PROPERTY(qreal borderLeft READ borderLeft WRITE setBorderLeft NOTIFY
+    Q_PROPERTY(qreal borderLeft READ borderLeft WRITE setBorderLeft NOTIFY borderLeftChanged)
-            borderLeftChanged)
+    Q_PROPERTY(qreal borderRight READ borderRight WRITE setBorderRight NOTIFY borderRightChanged)
-    Q_PROPERTY(qreal borderRight READ borderRight WRITE setBorderRight NOTIFY
+    Q_PROPERTY(qreal borderTop READ borderTop WRITE setBorderTop NOTIFY borderTopChanged)
-            borderRightChanged)
+    Q_PROPERTY(qreal borderBottom READ borderBottom WRITE setBorderBottom NOTIFY borderBottomChanged)
-    Q_PROPERTY(qreal borderTop READ borderTop WRITE setBorderTop NOTIFY
-            borderTopChanged)
-    Q_PROPERTY(qreal borderBottom READ borderBottom WRITE setBorderBottom NOTIFY
-            borderBottomChanged)
 
 public:
     explicit BlobInvertedRect(QQuickItem* parent = nullptr);

plugin/src/Caelestia/Blobs/blobmaterial.cpp

@@ -7,8 +7,7 @@ QSGMaterialType* BlobMaterial::type() const {
     return &s_type;
 }
 
-QSGMaterialShader* BlobMaterial::createShader(
+QSGMaterialShader* BlobMaterial::createShader(QSGRendererInterface::RenderMode) const {
-    QSGRendererInterface::RenderMode) const {
     return new BlobMaterialShader;
 }
 
@@ -25,8 +24,7 @@ BlobMaterialShader::BlobMaterialShader() {
     setShaderFileName(FragmentStage, QStringLiteral(":/shaders/blob.frag.qsb"));
 }
 
-bool BlobMaterialShader::updateUniformData(
+bool BlobMaterialShader::updateUniformData(RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial) {
-    RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial) {
     Q_UNUSED(oldMaterial);
     auto* mat = static_cast<BlobMaterial*>(newMaterial);
     QByteArray* buf = state.uniformData();
@@ -85,13 +83,13 @@ bool BlobMaterialShader::updateUniformData(
         const auto& r = mat->m_rects[i];
         const int base = 160 + i * 80;
         const float d0[4] = { r.cx, r.cy, r.hw, r.hh };
-        const float d1[4] = { r.radius, r.offsetX, r.offsetY, r.minEig };
+        const float d1[4] = { 0.0f, r.offsetX, r.offsetY, r.minEig };
         const float d3[4] = { r.screenHalfX, r.screenHalfY, 0.0f, 0.0f };
         memcpy(buf->data() + base, d0, 16);
         memcpy(buf->data() + base + 16, d1, 16);
         memcpy(buf->data() + base + 32, r.invDeform, 16);
         memcpy(buf->data() + base + 48, d3, 16);
-        memcpy(buf->data() + base + 64, r.cornerFill, 16);
+        memcpy(buf->data() + base + 64, r.radius, 16);
     }
 
     return true;

plugin/src/Caelestia/Blobs/blobmaterial.hpp

@@ -6,22 +6,20 @@
 
 struct BlobRectData {
     float cx = 0, cy = 0, hw = 0, hh = 0;
-    float radius = 0;
     float offsetX = 0, offsetY = 0;
     float minEig = 1.0f;
     // Inverse of 2x2 deformation matrix, column-major for GLSL
     float invDeform[4] = { 1, 0, 0, 1 };
     // Screen-space AABB half-extents of the deformed rect
     float screenHalfX = 0, screenHalfY = 0;
-    // Pre-computed corner fill factors (tr, br, bl, tl)
+    // Effective per-corner radii (tr, br, bl, tl), pre-computed on CPU
-    float cornerFill[4] = { 1, 1, 1, 1 };
+    float radius[4] = { 0, 0, 0, 0 };
 };
 
 class BlobMaterial : public QSGMaterial {
 public:
     QSGMaterialType* type() const override;
-    QSGMaterialShader* createShader(
+    QSGMaterialShader* createShader(QSGRendererInterface::RenderMode) const override;
-        QSGRendererInterface::RenderMode) const override;
     int compare(const QSGMaterial* other) const override;
 
     float m_paddedX = 0;
@@ -42,6 +40,5 @@ public:
 class BlobMaterialShader : public QSGMaterialShader {
 public:
     BlobMaterialShader();
-    bool updateUniformData(RenderState& state, QSGMaterial* newMaterial,
+    bool updateUniformData(RenderState& state, QSGMaterial* newMaterial, QSGMaterial* oldMaterial) override;
-        QSGMaterial* oldMaterial) override;
 };

plugin/src/Caelestia/Blobs/blobrect.cpp

@@ -17,10 +17,8 @@ void BlobRect::updatePolish() {
 
     if (m_physicsActive) {
         // Check if deformation is visually imperceptible
-        float totalDelta = std::abs(m_dm00 - 1.0f) + std::abs(m_dm01)
+        float totalDelta = std::abs(m_dm00 - 1.0f) + std::abs(m_dm01) + std::abs(m_dm11 - 1.0f);
-            + std::abs(m_dm11 - 1.0f);
+        float totalVel = std::abs(m_dmVel00) + std::abs(m_dmVel01) + std::abs(m_dmVel11);
-        float totalVel =
-            std::abs(m_dmVel00) + std::abs(m_dmVel01) + std::abs(m_dmVel11);
 
         if (totalDelta < 0.004f && totalVel < 0.05f) {
             // Snap to rest, no visible deformation
@@ -62,10 +60,8 @@ void BlobRect::updatePhysics() {
         return;
     }
 
-    const float velX =
+    const float velX = static_cast<float>(scenePos.x() - m_prevScenePos.x()) / dt;
-        static_cast<float>(scenePos.x() - m_prevScenePos.x()) / dt;
+    const float velY = static_cast<float>(scenePos.y() - m_prevScenePos.y()) / dt;
-    const float velY =
-        static_cast<float>(scenePos.y() - m_prevScenePos.y()) / dt;
     m_prevScenePos = scenePos;
 
     const float speed = std::sqrt(velX * velX + velY * velY);
@@ -86,8 +82,7 @@ void BlobRect::updatePhysics() {
     float target11 = 1.0f;
 
     if (speed > 5.0f) {
-        const float targetStretch =
+        const float targetStretch = 1.0f + std::min(speed * kStretchFactor, kMaxStretch);
-            1.0f + std::min(speed * kStretchFactor, kMaxStretch);
         const float targetCompress = 1.0f / targetStretch;
 
         const float cosA = velX / speed;
@@ -105,35 +100,132 @@ void BlobRect::updatePhysics() {
     const float kStiffness = static_cast<float>(m_stiffness);
     const float kDamping = static_cast<float>(m_damping);
 
-    const float accel00 =
+    const float accel00 = -kStiffness * (m_dm00 - target00) - kDamping * m_dmVel00;
-        -kStiffness * (m_dm00 - target00) - kDamping * m_dmVel00;
     m_dmVel00 += accel00 * dt;
     m_dm00 += m_dmVel00 * dt;
 
-    const float accel01 =
+    const float accel01 = -kStiffness * (m_dm01 - target01) - kDamping * m_dmVel01;
-        -kStiffness * (m_dm01 - target01) - kDamping * m_dmVel01;
     m_dmVel01 += accel01 * dt;
     m_dm01 += m_dmVel01 * dt;
 
-    const float accel11 =
+    const float accel11 = -kStiffness * (m_dm11 - target11) - kDamping * m_dmVel11;
-        -kStiffness * (m_dm11 - target11) - kDamping * m_dmVel11;
     m_dmVel11 += accel11 * dt;
     m_dm11 += m_dmVel11 * dt;
 
-    m_deformMatrix = QMatrix4x4(
+    m_deformMatrix = QMatrix4x4(m_dm00, m_dm01, 0, 0, m_dm01, m_dm11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
-        m_dm00, m_dm01, 0, 0, m_dm01, m_dm11, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
     updateCenteredDeformMatrix();
 
     checkAtRest(speed);
 }
 
+void BlobRect::setTopLeftRadius(qreal r) {
+    if (!qFuzzyCompare(m_topLeftRadius, r)) {
+        m_topLeftRadius = r;
+        emit topLeftRadiusChanged();
+        if (m_group)
+            m_group->markDirty();
+    }
+}
+
+void BlobRect::setTopRightRadius(qreal r) {
+    if (!qFuzzyCompare(m_topRightRadius, r)) {
+        m_topRightRadius = r;
+        emit topRightRadiusChanged();
+        if (m_group)
+            m_group->markDirty();
+    }
+}
+
+void BlobRect::setBottomLeftRadius(qreal r) {
+    if (!qFuzzyCompare(m_bottomLeftRadius, r)) {
+        m_bottomLeftRadius = r;
+        emit bottomLeftRadiusChanged();
+        if (m_group)
+            m_group->markDirty();
+    }
+}
+
+void BlobRect::setBottomRightRadius(qreal r) {
+    if (!qFuzzyCompare(m_bottomRightRadius, r)) {
+        m_bottomRightRadius = r;
+        emit bottomRightRadiusChanged();
+        if (m_group)
+            m_group->markDirty();
+    }
+}
+
+void BlobRect::cornerRadii(float out[4]) const {
+    const auto base = static_cast<float>(m_radius);
+    out[0] = m_topRightRadius >= 0 ? static_cast<float>(m_topRightRadius) : base;
+    out[1] = m_bottomRightRadius >= 0 ? static_cast<float>(m_bottomRightRadius) : base;
+    out[2] = m_bottomLeftRadius >= 0 ? static_cast<float>(m_bottomLeftRadius) : base;
+    out[3] = m_topLeftRadius >= 0 ? static_cast<float>(m_topLeftRadius) : base;
+}
+
+bool BlobRect::isExcluded(const BlobShape* other) const {
+    for (const auto& ptr : m_exclude) {
+        if (ptr == other)
+            return true;
+    }
+    return false;
+}
+
+QQmlListProperty<BlobRect> BlobRect::exclude() {
+    return QQmlListProperty<BlobRect>(
+        this, nullptr, &excludeAppend, &excludeCount, &excludeAt, &excludeClear, &excludeReplace, &excludeRemoveLast);
+}
+
+void BlobRect::excludeAppend(QQmlListProperty<BlobRect>* prop, BlobRect* rect) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    self->m_exclude.append(rect);
+    if (self->m_group)
+        self->m_group->markDirty();
+    emit self->excludeChanged();
+}
+
+qsizetype BlobRect::excludeCount(QQmlListProperty<BlobRect>* prop) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    return self->m_exclude.size();
+}
+
+BlobRect* BlobRect::excludeAt(QQmlListProperty<BlobRect>* prop, qsizetype index) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    return self->m_exclude.at(index);
+}
+
+void BlobRect::excludeClear(QQmlListProperty<BlobRect>* prop) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    if (self->m_exclude.isEmpty())
+        return;
+    self->m_exclude.clear();
+    if (self->m_group)
+        self->m_group->markDirty();
+    emit self->excludeChanged();
+}
+
+void BlobRect::excludeReplace(QQmlListProperty<BlobRect>* prop, qsizetype index, BlobRect* rect) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    self->m_exclude[index] = rect;
+    if (self->m_group)
+        self->m_group->markDirty();
+    emit self->excludeChanged();
+}
+
+void BlobRect::excludeRemoveLast(QQmlListProperty<BlobRect>* prop) {
+    auto* self = static_cast<BlobRect*>(prop->object);
+    if (self->m_exclude.isEmpty())
+        return;
+    self->m_exclude.removeLast();
+    if (self->m_group)
+        self->m_group->markDirty();
+    emit self->excludeChanged();
+}
+
 void BlobRect::checkAtRest(float speed) {
     constexpr float kEpsilon = 0.002f;
-    const bool atRest =
+    const bool atRest = std::abs(m_dm00 - 1.0f) < kEpsilon && std::abs(m_dm01) < kEpsilon &&
-        std::abs(m_dm00 - 1.0f) < kEpsilon && std::abs(m_dm01) < kEpsilon &&
+                        std::abs(m_dm11 - 1.0f) < kEpsilon && std::abs(m_dmVel00) < kEpsilon &&
-        std::abs(m_dm11 - 1.0f) < kEpsilon && std::abs(m_dmVel00) < kEpsilon &&
+                        std::abs(m_dmVel01) < kEpsilon && std::abs(m_dmVel11) < kEpsilon && speed < 5.0f;
-        std::abs(m_dmVel01) < kEpsilon && std::abs(m_dmVel11) < kEpsilon &&
-        speed < 5.0f;
 
     if (atRest) {
         m_dm00 = 1.0f;

plugin/src/Caelestia/Blobs/blobrect.hpp

@@ -3,17 +3,22 @@
 #include "blobshape.hpp"
 
 #include <qelapsedtimer.h>
+#include <qpointer.h>
 #include <qqmlengine.h>
+#include <qqmllist.h>
 
 class BlobRect : public BlobShape {
     Q_OBJECT
     QML_ELEMENT
-    Q_PROPERTY(qreal stiffness READ stiffness WRITE setStiffness NOTIFY
+    Q_PROPERTY(qreal stiffness READ stiffness WRITE setStiffness NOTIFY stiffnessChanged)
-            stiffnessChanged)
+    Q_PROPERTY(qreal damping READ damping WRITE setDamping NOTIFY dampingChanged)
+    Q_PROPERTY(qreal deformScale READ deformScale WRITE setDeformScale NOTIFY deformScaleChanged)
+    Q_PROPERTY(QQmlListProperty<BlobRect> exclude READ exclude NOTIFY excludeChanged)
+    Q_PROPERTY(qreal topLeftRadius READ topLeftRadius WRITE setTopLeftRadius NOTIFY topLeftRadiusChanged)
+    Q_PROPERTY(qreal topRightRadius READ topRightRadius WRITE setTopRightRadius NOTIFY topRightRadiusChanged)
+    Q_PROPERTY(qreal bottomLeftRadius READ bottomLeftRadius WRITE setBottomLeftRadius NOTIFY bottomLeftRadiusChanged)
     Q_PROPERTY(
-        qreal damping READ damping WRITE setDamping NOTIFY dampingChanged)
+        qreal bottomRightRadius READ bottomRightRadius WRITE setBottomRightRadius NOTIFY bottomRightRadiusChanged)
-    Q_PROPERTY(qreal deformScale READ deformScale WRITE setDeformScale NOTIFY
-            deformScaleChanged)
 
 public:
     explicit BlobRect(QQuickItem* parent = nullptr);
@@ -46,10 +51,36 @@ public:
         }
     }
 
+    QQmlListProperty<BlobRect> exclude();
+
+    bool isExcluded(const BlobShape* other) const override;
+    void cornerRadii(float out[4]) const override;
+
+    qreal topLeftRadius() const { return m_topLeftRadius; }
+
+    void setTopLeftRadius(qreal r);
+
+    qreal topRightRadius() const { return m_topRightRadius; }
+
+    void setTopRightRadius(qreal r);
+
+    qreal bottomLeftRadius() const { return m_bottomLeftRadius; }
+
+    void setBottomLeftRadius(qreal r);
+
+    qreal bottomRightRadius() const { return m_bottomRightRadius; }
+
+    void setBottomRightRadius(qreal r);
+
 signals:
     void stiffnessChanged();
     void dampingChanged();
     void deformScaleChanged();
+    void excludeChanged();
+    void topLeftRadiusChanged();
+    void topRightRadiusChanged();
+    void bottomLeftRadiusChanged();
+    void bottomRightRadiusChanged();
 
 protected:
     void updatePolish() override;
@@ -78,4 +109,18 @@ private:
     qreal m_stiffness = 200.0;
     qreal m_damping = 16.0;
     qreal m_deformScale = 0.0005;
+
+    qreal m_topLeftRadius = -1;
+    qreal m_topRightRadius = -1;
+    qreal m_bottomLeftRadius = -1;
+    qreal m_bottomRightRadius = -1;
+
+    QList<QPointer<BlobRect>> m_exclude;
+
+    static void excludeAppend(QQmlListProperty<BlobRect>* prop, BlobRect* rect);
+    static qsizetype excludeCount(QQmlListProperty<BlobRect>* prop);
+    static BlobRect* excludeAt(QQmlListProperty<BlobRect>* prop, qsizetype index);
+    static void excludeClear(QQmlListProperty<BlobRect>* prop);
+    static void excludeReplace(QQmlListProperty<BlobRect>* prop, qsizetype index, BlobRect* rect);
+    static void excludeRemoveLast(QQmlListProperty<BlobRect>* prop);
 };

plugin/src/Caelestia/Blobs/blobshape.cpp

@@ -19,8 +19,7 @@ static float deformPadding(const QMatrix4x4& dm, float hw, float hh) {
     return std::max(extraX, extraY);
 }
 
-static float cpuSdBox(float px, float py, float cx, float cy, float hw,
+static float cpuSdBox(float px, float py, float cx, float cy, float hw, float hh) {
-    float hh) {
     const float dx = std::abs(px - cx) - hw;
     const float dy = std::abs(py - cy) - hh;
     const float mdx = std::max(dx, 0.0f);
@@ -66,8 +65,7 @@ void BlobShape::componentComplete() {
         registerWithGroup();
 }
 
-void BlobShape::geometryChange(
+void BlobShape::geometryChange(const QRectF& newGeometry, const QRectF& oldGeometry) {
-    const QRectF& newGeometry, const QRectF& oldGeometry) {
     QQuickItem::geometryChange(newGeometry, oldGeometry);
     updateCenteredDeformMatrix();
     if (m_group) {
@@ -92,6 +90,14 @@ void BlobShape::updateCenteredDeformMatrix() {
     emit deformMatrixChanged();
 }
 
+void BlobShape::cornerRadii(float out[4]) const {
+    const auto r = static_cast<float>(m_radius);
+    out[0] = r;
+    out[1] = r;
+    out[2] = r;
+    out[3] = r;
+}
+
 void BlobShape::registerWithGroup() {
     if (m_group)
         m_group->addShape(this);
@@ -127,19 +133,15 @@ void BlobShape::updatePolish() {
         m_cachedPaddedY = static_cast<float>(scenePos.y()) - totalPad;
         m_cachedPaddedW = static_cast<float>(width()) + 2.0f * totalPad;
         m_cachedPaddedH = static_cast<float>(height()) + 2.0f * totalPad;
-        m_localPaddedRect = QRectF(static_cast<double>(-totalPad),
+        m_localPaddedRect = QRectF(static_cast<double>(-totalPad), static_cast<double>(-totalPad),
-            static_cast<double>(-totalPad),
+            width() + 2.0 * static_cast<double>(totalPad), height() + 2.0 * static_cast<double>(totalPad));
-            width() + 2.0 * static_cast<double>(totalPad),
-            height() + 2.0 * static_cast<double>(totalPad));
     }
 
     // Filter nearby normal rects
     m_cachedRects.clear();
     m_cachedMyIndex = -2;
-    const QRectF myPadded(static_cast<double>(m_cachedPaddedX),
+    const QRectF myPadded(static_cast<double>(m_cachedPaddedX), static_cast<double>(m_cachedPaddedY),
-        static_cast<double>(m_cachedPaddedY),
+        static_cast<double>(m_cachedPaddedW), static_cast<double>(m_cachedPaddedH));
-        static_cast<double>(m_cachedPaddedW),
-        static_cast<double>(m_cachedPaddedH));
 
     for (BlobShape* other : m_group->shapes()) {
         if (other->isInvertedRect())
@@ -149,6 +151,9 @@ void BlobShape::updatePolish() {
         if (other->width() <= 0 || other->height() <= 0)
             continue;
 
+        if (isExcluded(other))
+            continue;
+
         const QPointF otherScene = other->mapToScene(QPointF(0, 0));
 
         bool include = false;
@@ -157,12 +162,9 @@ void BlobShape::updatePolish() {
         } else {
             const float otherHW = static_cast<float>(other->width()) * 0.5f;
             const float otherHH = static_cast<float>(other->height()) * 0.5f;
-            const float otherPad =
+            const float otherPad = pad + deformPadding(other->m_deformMatrix, otherHW, otherHH);
-                pad + deformPadding(other->m_deformMatrix, otherHW, otherHH);
+            const QRectF otherPadded(otherScene.x() - static_cast<double>(otherPad),
-            const QRectF otherPadded(
+                otherScene.y() - static_cast<double>(otherPad), other->width() + 2.0 * static_cast<double>(otherPad),
-                otherScene.x() - static_cast<double>(otherPad),
-                otherScene.y() - static_cast<double>(otherPad),
-                other->width() + 2.0 * static_cast<double>(otherPad),
                 other->height() + 2.0 * static_cast<double>(otherPad));
             include = myPadded.intersects(otherPadded);
         }
@@ -180,14 +182,13 @@ void BlobShape::updatePolish() {
             r.cy = static_cast<float>(otherScene.y() + other->height() / 2.0);
             r.hw = static_cast<float>(other->width() / 2.0);
             r.hh = static_cast<float>(other->height() / 2.0);
-            r.radius = static_cast<float>(other->radius());
+            other->cornerRadii(r.radius);
             r.offsetX = dm(0, 3);
             r.offsetY = dm(1, 3);
 
             // Pre-compute inverse deformation matrix
             const float det = a * d - c * b;
-            const float invDet =
+            const float invDet = std::abs(det) > 1e-6f ? 1.0f / det : 1.0f;
-                std::abs(det) > 1e-6f ? 1.0f / det : 1.0f;
             r.invDeform[0] = d * invDet;
             r.invDeform[1] = -b * invDet;
             r.invDeform[2] = -c * invDet;
@@ -218,25 +219,15 @@ void BlobShape::updatePolish() {
     auto* inv = m_group->invertedRect();
     if (inv) {
         const QPointF invScene = inv->mapToScene(QPointF(0, 0));
-        const float outerCX =
+        const float outerCX = static_cast<float>(invScene.x() + inv->width() / 2.0);
-            static_cast<float>(invScene.x() + inv->width() / 2.0);
+        const float outerCY = static_cast<float>(invScene.y() + inv->height() / 2.0);
-        const float outerCY =
-            static_cast<float>(invScene.y() + inv->height() / 2.0);
         const float outerHW = static_cast<float>(inv->width() / 2.0);
         const float outerHH = static_cast<float>(inv->height() / 2.0);
 
-        const float innerCX =
+        const float innerCX = outerCX + static_cast<float>((inv->borderLeft() - inv->borderRight()) / 2.0);
-            outerCX +
+        const float innerCY = outerCY + static_cast<float>((inv->borderTop() - inv->borderBottom()) / 2.0);
-            static_cast<float>((inv->borderLeft() - inv->borderRight()) / 2.0);
+        const float innerHW = outerHW - static_cast<float>((inv->borderLeft() + inv->borderRight()) / 2.0);
-        const float innerCY =
+        const float innerHH = outerHH - static_cast<float>((inv->borderTop() + inv->borderBottom()) / 2.0);
-            outerCY +
-            static_cast<float>((inv->borderTop() - inv->borderBottom()) / 2.0);
-        const float innerHW =
-            outerHW -
-            static_cast<float>((inv->borderLeft() + inv->borderRight()) / 2.0);
-        const float innerHH =
-            outerHH -
-            static_cast<float>((inv->borderTop() + inv->borderBottom()) / 2.0);
 
         // Check if this rect is near the border (within 2x smoothing of inner edge)
         bool nearBorder = isInvertedRect();
@@ -247,10 +238,8 @@ void BlobShape::updatePolish() {
             const float myHW = m_cachedPaddedW * 0.5f;
             const float myHH = m_cachedPaddedH * 0.5f;
             // Near border if any edge of padded rect is within margin of inner edge
-            nearBorder = (myCX - myHW < innerCX - innerHW + margin) ||
+            nearBorder = (myCX - myHW < innerCX - innerHW + margin) || (myCX + myHW > innerCX + innerHW - margin) ||
-                (myCX + myHW > innerCX + innerHW - margin) ||
+                         (myCY - myHH < innerCY - innerHH + margin) || (myCY + myHH > innerCY + innerHH - margin);
-                (myCY - myHH < innerCY - innerHH + margin) ||
-                (myCY + myHH > innerCY + innerHH - margin);
         }
 
         if (nearBorder) {
@@ -269,8 +258,9 @@ void BlobShape::updatePolish() {
         }
     }
 
-    // Pre-compute corner fill factors (moves O(N²) work from GPU to CPU)
+    // Pre-compute effective per-corner radii (moves O(N²) work from GPU to CPU)
     const float smoothFactor = pad;
+    constexpr float minR = 2.0f;
     const auto rectCount = m_cachedRects.size();
     for (qsizetype i = 0; i < rectCount; ++i) {
         auto& ri = m_cachedRects[i];
@@ -285,14 +275,10 @@ void BlobShape::updatePolish() {
             if (j == i)
                 continue;
             const auto& rj = m_cachedRects[j];
-            fTr = std::min(fTr, cpuSmoothstep(0.0f, smoothFactor,
+            fTr = std::min(fTr, cpuSmoothstep(0.0f, smoothFactor, cpuSdBox(cTrX, cTrY, rj.cx, rj.cy, rj.hw, rj.hh)));
-                cpuSdBox(cTrX, cTrY, rj.cx, rj.cy, rj.hw, rj.hh)));
+            fBr = std::min(fBr, cpuSmoothstep(0.0f, smoothFactor, cpuSdBox(cBrX, cBrY, rj.cx, rj.cy, rj.hw, rj.hh)));
-            fBr = std::min(fBr, cpuSmoothstep(0.0f, smoothFactor,
+            fBl = std::min(fBl, cpuSmoothstep(0.0f, smoothFactor, cpuSdBox(cBlX, cBlY, rj.cx, rj.cy, rj.hw, rj.hh)));
-                cpuSdBox(cBrX, cBrY, rj.cx, rj.cy, rj.hw, rj.hh)));
+            fTl = std::min(fTl, cpuSmoothstep(0.0f, smoothFactor, cpuSdBox(cTlX, cTlY, rj.cx, rj.cy, rj.hw, rj.hh)));
-            fBl = std::min(fBl, cpuSmoothstep(0.0f, smoothFactor,
-                cpuSdBox(cBlX, cBlY, rj.cx, rj.cy, rj.hw, rj.hh)));
-            fTl = std::min(fTl, cpuSmoothstep(0.0f, smoothFactor,
-                cpuSdBox(cTlX, cTlY, rj.cx, rj.cy, rj.hw, rj.hh)));
         }
 
         if (m_cachedHasInverted) {
@@ -300,20 +286,17 @@ void BlobShape::updatePolish() {
             const float icy = m_cachedInvertedInner[1];
             const float ihw = m_cachedInvertedInner[2];
             const float ihh = m_cachedInvertedInner[3];
-            fTr = std::min(fTr, cpuSmoothstep(0.0f, smoothFactor,
+            fTr = std::min(fTr, cpuSmoothstep(0.0f, smoothFactor, -cpuSdBox(cTrX, cTrY, icx, icy, ihw, ihh)));
-                -cpuSdBox(cTrX, cTrY, icx, icy, ihw, ihh)));
+            fBr = std::min(fBr, cpuSmoothstep(0.0f, smoothFactor, -cpuSdBox(cBrX, cBrY, icx, icy, ihw, ihh)));
-            fBr = std::min(fBr, cpuSmoothstep(0.0f, smoothFactor,
+            fBl = std::min(fBl, cpuSmoothstep(0.0f, smoothFactor, -cpuSdBox(cBlX, cBlY, icx, icy, ihw, ihh)));
-                -cpuSdBox(cBrX, cBrY, icx, icy, ihw, ihh)));
+            fTl = std::min(fTl, cpuSmoothstep(0.0f, smoothFactor, -cpuSdBox(cTlX, cTlY, icx, icy, ihw, ihh)));
-            fBl = std::min(fBl, cpuSmoothstep(0.0f, smoothFactor,
-                -cpuSdBox(cBlX, cBlY, icx, icy, ihw, ihh)));
-            fTl = std::min(fTl, cpuSmoothstep(0.0f, smoothFactor,
-                -cpuSdBox(cTlX, cTlY, icx, icy, ihw, ihh)));
         }
 
-        ri.cornerFill[0] = fTr;
+        // Combine base radii with fill factors into effective per-corner radii
-        ri.cornerFill[1] = fBr;
+        ri.radius[0] = std::max(ri.radius[0] * fTr, minR);
-        ri.cornerFill[2] = fBl;
+        ri.radius[1] = std::max(ri.radius[1] * fBr, minR);
-        ri.cornerFill[3] = fTl;
+        ri.radius[2] = std::max(ri.radius[2] * fBl, minR);
+        ri.radius[3] = std::max(ri.radius[3] * fTl, minR);
     }
 }
 
@@ -327,8 +310,7 @@ QSGNode* BlobShape::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*) {
     if (!node) {
         node = new QSGGeometryNode;
 
-        auto* geometry = new QSGGeometry(
+        auto* geometry = new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4);
-            QSGGeometry::defaultAttributes_TexturedPoint2D(), 4);
         geometry->setDrawingMode(QSGGeometry::DrawTriangleStrip);
         node->setGeometry(geometry);
         node->setFlag(QSGNode::OwnsGeometry);
@@ -366,13 +348,10 @@ QSGNode* BlobShape::updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*) {
     material->m_color = m_group->color();
     material->m_hasInverted = m_cachedHasInverted ? 1 : 0;
     material->m_invertedRadius = m_cachedInvertedRadius;
-    memcpy(material->m_invertedOuter, m_cachedInvertedOuter,
+    memcpy(material->m_invertedOuter, m_cachedInvertedOuter, sizeof(m_cachedInvertedOuter));
-        sizeof(m_cachedInvertedOuter));
+    memcpy(material->m_invertedInner, m_cachedInvertedInner, sizeof(m_cachedInvertedInner));
-    memcpy(material->m_invertedInner, m_cachedInvertedInner,
-        sizeof(m_cachedInvertedInner));
 
-    const int count =
+    const int count = static_cast<int>(qMin(m_cachedRects.size(), qsizetype(16)));
-        static_cast<int>(qMin(m_cachedRects.size(), qsizetype(16)));
     material->m_rectCount = count;
     for (int i = 0; i < count; ++i)
         material->m_rects[i] = m_cachedRects[i];

plugin/src/Caelestia/Blobs/blobshape.hpp

@@ -12,8 +12,7 @@ class BlobShape : public QQuickItem {
     Q_OBJECT
     Q_PROPERTY(BlobGroup* group READ group WRITE setGroup NOTIFY groupChanged)
     Q_PROPERTY(qreal radius READ radius WRITE setRadius NOTIFY radiusChanged)
-    Q_PROPERTY(
+    Q_PROPERTY(QMatrix4x4 deformMatrix READ deformMatrix NOTIFY deformMatrixChanged)
-        QMatrix4x4 deformMatrix READ deformMatrix NOTIFY deformMatrixChanged)
 
     friend class BlobGroup;
 
@@ -38,13 +37,16 @@ signals:
 
 protected:
     void componentComplete() override;
-    void geometryChange(
+    void geometryChange(const QRectF& newGeometry, const QRectF& oldGeometry) override;
-        const QRectF& newGeometry, const QRectF& oldGeometry) override;
     void updatePolish() override;
     QSGNode* updatePaintNode(QSGNode* oldNode, UpdatePaintNodeData*) override;
 
     virtual bool isInvertedRect() const { return false; }
 
+    virtual bool isExcluded(const BlobShape* /*other*/) const { return false; }
+
+    virtual void cornerRadii(float out[4]) const;
+
     virtual void updatePhysics() {}
 
     virtual void registerWithGroup();

plugin/src/Caelestia/Blobs/shaders/blob.frag

@@ -80,7 +80,7 @@ void main() {
         vec4 props = rectData[i * 5 + 1];    // radius, offsetX, offsetY, minEig
         vec4 invDm = rectData[i * 5 + 2];    // inverse deform matrix
         vec4 sh = rectData[i * 5 + 3];       // screenHalfX, screenHalfY, 0, 0
-        vec4 fills = rectData[i * 5 + 4];    // f_tr, f_br, f_bl, f_tl
+        vec4 radii = rectData[i * 5 + 4];    // effective per-corner radii (tr, br, bl, tl)
 
         // Offset center for asymmetric deformation
         vec2 center = rect.xy + props.yz;
@@ -94,10 +94,7 @@ void main() {
         mat2 invDeform = mat2(invDm.xy, invDm.zw);
         vec2 transformedPixel = center + invDeform * (pixel - center);
 
-        // Use pre-computed corner fill factors
+        // Use pre-computed effective per-corner radii
-        float br = props.x;
-        float minR = 2.0;
-        vec4 radii = max(br * fills, vec4(minR));
         float d = sdRoundedBox4(transformedPixel, center, rect.zw, radii);
 
         // Use pre-computed minimum eigenvalue for SDF correction