| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | #include "qtrianglemeshshape_p.h" |
| 5 | |
| 6 | #include <QtQuick3D/QQuick3DGeometry> |
| 7 | #include <extensions/PxExtensionsAPI.h> |
| 8 | |
| 9 | #include "qphysicsmeshutils_p_p.h" |
| 10 | |
| 11 | //######################################################################################## |
| 12 | // NOTE: |
| 13 | // Triangle mesh, heightfield or plane geometry shapes configured as eSIMULATION_SHAPE are |
| 14 | // not supported for non-kinematic PxRigidDynamic instances. |
| 15 | //######################################################################################## |
| 16 | |
| 17 | QT_BEGIN_NAMESPACE |
| 18 | |
| 19 | /*! |
| 20 | \qmltype TriangleMeshShape |
| 21 | \inqmlmodule QtQuick3D.Physics |
| 22 | \inherits CollisionShape |
| 23 | \since 6.4 |
| 24 | \brief A collision shape based on a 3D mesh. |
| 25 | |
| 26 | This type defines a shape based on the same 3D mesh file format used by |
| 27 | \l [QtQuick3D]{Model::source}{QtQuick3D.Model}. |
| 28 | |
| 29 | Objects that are controlled by the physics simulation cannot use TriangleMeshShape: It can only |
| 30 | be used with \l StaticRigidBody and \l {DynamicRigidBody::isKinematic}{kinematic bodies}. Use \l |
| 31 | ConvexMeshShape for non-kinematic dynamic bodies. |
| 32 | |
| 33 | \sa {Qt Quick 3D Physics Shapes and Bodies}{Shapes and Bodies overview documentation} |
| 34 | */ |
| 35 | |
| 36 | /*! |
| 37 | \qmlproperty url TriangleMeshShape::source |
| 38 | This property defines the location of the mesh file used to define the shape. |
| 39 | |
| 40 | Internally, TriangleMeshShape converts the mesh to an optimized data structure. This conversion |
| 41 | can be done in advance. See the \l{Qt Quick 3D Physics Cooking}{cooking overview documentation} |
| 42 | for details. |
| 43 | */ |
| 44 | |
| 45 | QTriangleMeshShape::QTriangleMeshShape() = default; |
| 46 | |
| 47 | QTriangleMeshShape::~QTriangleMeshShape() |
| 48 | { |
| 49 | delete m_meshGeometry; |
| 50 | if (m_mesh) |
| 51 | QQuick3DPhysicsMeshManager::releaseMesh(mesh: m_mesh); |
| 52 | } |
| 53 | |
| 54 | physx::PxGeometry *QTriangleMeshShape::getPhysXGeometry() |
| 55 | { |
| 56 | if (m_dirtyPhysx || m_scaleDirty) { |
| 57 | updatePhysXGeometry(); |
| 58 | } |
| 59 | return m_meshGeometry; |
| 60 | } |
| 61 | |
| 62 | void QTriangleMeshShape::updatePhysXGeometry() |
| 63 | { |
| 64 | delete m_meshGeometry; |
| 65 | m_meshGeometry = nullptr; |
| 66 | |
| 67 | if (!m_mesh) |
| 68 | return; |
| 69 | auto *triangleMesh = m_mesh->triangleMesh(); |
| 70 | if (!triangleMesh) |
| 71 | return; |
| 72 | |
| 73 | auto meshScale = sceneScale(); |
| 74 | physx::PxMeshScale scale(physx::PxVec3(meshScale.x(), meshScale.y(), meshScale.z()), |
| 75 | physx::PxQuat(physx::PxIdentity)); |
| 76 | |
| 77 | m_meshGeometry = new physx::PxTriangleMeshGeometry(triangleMesh, scale); |
| 78 | m_dirtyPhysx = false; |
| 79 | } |
| 80 | |
| 81 | const QUrl &QTriangleMeshShape::source() const |
| 82 | { |
| 83 | return m_meshSource; |
| 84 | } |
| 85 | |
| 86 | void QTriangleMeshShape::setSource(const QUrl &newSource) |
| 87 | { |
| 88 | if (m_meshSource == newSource) |
| 89 | return; |
| 90 | m_meshSource = newSource; |
| 91 | m_mesh = QQuick3DPhysicsMeshManager::getMesh(source: m_meshSource, contextObject: this); |
| 92 | |
| 93 | updatePhysXGeometry(); |
| 94 | |
| 95 | emit needsRebuild(this); |
| 96 | emit sourceChanged(); |
| 97 | } |
| 98 | |
| 99 | QT_END_NAMESPACE |
| 100 |