remove layer usage to reduce vram consumption

Plugins/ZShell/Blobs/blobshape2.hpp

@@ -0,0 +1,76 @@
+#pragma once
+
+#include "blobgroup2.hpp"
+
+#include <qmatrix4x4.h>
+#include <qquickitem.h>
+
+class BlobGroup2;
+
+// Data-only shape.
+//
+// The group draws a single node for the whole group, so a shape here contributes
+// only what the shader needs: position, radii, exclusion, physics. A shape does
+// not create a render node, so no pixel can be evaluated by one shape and missed
+// by another.
+class BlobShape2 : public QQuickItem {
+	Q_OBJECT
+	Q_PROPERTY(BlobGroup2* group READ group WRITE setGroup NOTIFY groupChanged)
+	Q_PROPERTY(qreal radius READ radius WRITE setRadius NOTIFY radiusChanged)
+	Q_PROPERTY(
+		QMatrix4x4 deformMatrix READ deformMatrix NOTIFY deformMatrixChanged)
+	Q_PROPERTY(
+		QMatrix4x4 rawDeformMatrix READ rawDeformMatrix NOTIFY
+			rawDeformMatrixChanged)
+
+	friend class BlobGroup2;
+
+	public:
+	explicit BlobShape2(QQuickItem* parent = nullptr);
+	~BlobShape2() override = default;
+
+	[[nodiscard]] BlobGroup2* group() const { return m_group; }
+
+	void setGroup(BlobGroup2* g);
+
+	[[nodiscard]] qreal radius() const { return m_radius; }
+
+	void setRadius(qreal r);
+
+	[[nodiscard]] QMatrix4x4 deformMatrix() const {
+		return m_centeredDeformMatrix;
+	}
+
+	[[nodiscard]] QMatrix4x4 rawDeformMatrix() const { return m_deformMatrix; }
+
+	signals:
+	void groupChanged();
+	void radiusChanged();
+	void deformMatrixChanged();
+	void rawDeformMatrixChanged();
+
+	protected:
+	void componentComplete() override;
+	void geometryChange(
+		const QRectF& newGeometry, const QRectF& oldGeometry) override;
+
+	virtual bool isExcluded(const BlobShape2*) const { return false; }
+
+	virtual bool isCornerExcluded(const BlobShape2* /*other*/) const {
+		return false;
+	}
+
+	virtual void cornerRadii(float out[4]) const;
+
+	// Called by the group when it rebuilds the shared data, once per frame.
+	virtual void updatePhysics() {}
+
+	virtual void registerWithGroup();
+	virtual void unregisterFromGroup();
+	void updateCenteredDeformMatrix();
+
+	BlobGroup2* m_group = nullptr;
+	qreal m_radius = 0;
+	QMatrix4x4 m_deformMatrix; // identity by default
+	QMatrix4x4 m_centeredDeformMatrix;
+};