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| |
| #ifndef GLTFEXPORTER_H |
| #define GLTFEXPORTER_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of other Qt classes. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtCore/qjsondocument.h> |
| #include <QtCore/qjsonobject.h> |
| #include <QtCore/qhash.h> |
| #include <QtGui/qvector3d.h> |
| |
| #include <Qt3DRender/qabstractlight.h> |
| #include <Qt3DRender/qshaderprogram.h> |
| |
| #include <private/qsceneexporter_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QByteArray; |
| |
| namespace Qt3DCore { |
| class QEntity; |
| class QTransform; |
| } |
| |
| namespace Qt3DRender { |
| |
| class QCamera; |
| class QCameraLens; |
| class QMaterial; |
| class QGeometryRenderer; |
| class QTechnique; |
| class QRenderPass; |
| class QEffect; |
| |
| Q_DECLARE_LOGGING_CATEGORY(GLTFExporterLog) |
| |
| class GLTFExporter : public QSceneExporter |
| { |
| Q_OBJECT |
| |
| public: |
| GLTFExporter(); |
| ~GLTFExporter(); |
| |
| bool exportScene(Qt3DCore::QEntity *sceneRoot, const QString &outDir, |
| const QString &exportName, const QVariantHash &options) final; |
| |
| struct GltfOptions { |
| bool binaryJson; |
| bool compactJson; |
| }; |
| |
| private: |
| enum PropertyCacheType { |
| TypeNone = 0, |
| TypeConeMesh, |
| TypeCuboidMesh, |
| TypeCylinderMesh, |
| TypePlaneMesh, |
| TypeSphereMesh, |
| TypeTorusMesh |
| }; |
| |
| struct MeshInfo { |
| struct BufferView { |
| BufferView() : bufIndex(0), offset(0), length(0), componentType(0), target(0) { } |
| QString name; |
| uint bufIndex; |
| uint offset; |
| uint length; |
| uint componentType; |
| uint target; |
| }; |
| QVector<BufferView> views; |
| struct Accessor { |
| Accessor() : offset(0), stride(0), count(0), componentType(0) { } |
| QString name; |
| QString usage; |
| QString bufferView; |
| uint offset; |
| uint stride; |
| uint count; |
| uint componentType; |
| QString type; |
| }; |
| QVector<Accessor> accessors; |
| QString name; // generated |
| QString originalName; // may be empty |
| QString materialName; |
| Qt3DRender::QGeometryRenderer *meshComponent; |
| PropertyCacheType meshType; |
| QString meshTypeStr; |
| }; |
| |
| struct MaterialInfo { |
| enum MaterialType { |
| TypeCustom, |
| TypePhong, |
| TypePhongAlpha, |
| TypeDiffuseMap, |
| TypeDiffuseSpecularMap, |
| TypeNormalDiffuseMap, |
| TypeNormalDiffuseMapAlpha, |
| TypeNormalDiffuseSpecularMap, |
| TypeGooch, |
| TypePerVertex |
| }; |
| |
| QString name; |
| QString originalName; |
| MaterialType type; |
| |
| // These are only used for default materials |
| QHash<QString, QColor> colors; |
| QHash<QString, QString> textures; |
| QHash<QString, QVariant> values; |
| QVector<int> blendArguments; |
| QVector<int> blendEquations; |
| }; |
| |
| struct ProgramInfo { |
| QString name; |
| QString vertexShader; |
| QString tessellationControlShader; |
| QString tessellationEvaluationShader; |
| QString geometryShader; |
| QString fragmentShader; |
| QString computeShader; |
| }; |
| |
| struct ShaderInfo { |
| QString name; |
| QString uri; |
| QShaderProgram::ShaderType type; |
| QByteArray code; |
| }; |
| |
| struct CameraInfo { |
| QString name; |
| QString originalName; |
| bool perspective; // Orthographic if false |
| float zfar; |
| float znear; |
| |
| // Perspective properties |
| float aspectRatio; |
| float yfov; |
| |
| // Orthographic properties |
| float xmag; |
| float ymag; |
| |
| QCamera *cameraEntity; |
| }; |
| |
| struct LightInfo { |
| QString name; |
| QString originalName; |
| QAbstractLight::Type type; |
| QColor color; |
| float intensity; |
| QVector3D direction; // Spot and diractional lights |
| QVector3D attenuation; // Spot and point lights |
| float cutOffAngle; // Spot light only |
| }; |
| |
| struct Node { |
| QString name; |
| QString uniqueName; // generated |
| QVector<Node *> children; |
| }; |
| |
| void cacheDefaultProperties(PropertyCacheType type); |
| void copyTextures(); |
| void createShaders(); |
| void parseEntities(const Qt3DCore::QEntity *entity, Node *parentNode); |
| void parseScene(); |
| void parseMaterials(); |
| void parseMeshes(); |
| void parseCameras(); |
| void parseLights(); |
| void parseTechniques(QMaterial *material); |
| void parseRenderPasses(QTechnique *technique); |
| QString addShaderInfo(QShaderProgram::ShaderType type, QByteArray code); |
| |
| bool saveScene(); |
| void delNode(Node *n); |
| QString exportNodes(Node *n, QJsonObject &nodes); |
| void exportMaterials(QJsonObject &materials); |
| void exportGenericProperties(QJsonObject &jsonObj, PropertyCacheType type, QObject *obj); |
| void clearOldExport(const QString &dir); |
| void exportParameter(QJsonObject &jsonObj, const QString &name, const QVariant &variant); |
| void exportRenderStates(QJsonObject &jsonObj, const QRenderPass *pass); |
| |
| QString newBufferViewName(); |
| QString newAccessorName(); |
| QString newMeshName(); |
| QString newMaterialName(); |
| QString newTechniqueName(); |
| QString newTextureName(); |
| QString newImageName(); |
| QString newShaderName(); |
| QString newProgramName(); |
| QString newNodeName(); |
| QString newCameraName(); |
| QString newLightName(); |
| QString newRenderPassName(); |
| QString newEffectName(); |
| |
| QString textureVariantToUrl(const QVariant &var); |
| void setVarToJSonObject(QJsonObject &jsObj, const QString &key, const QVariant &var); |
| |
| int m_bufferViewCount; |
| int m_accessorCount; |
| int m_meshCount; |
| int m_materialCount; |
| int m_techniqueCount; |
| int m_textureCount; |
| int m_imageCount; |
| int m_shaderCount; |
| int m_programCount; |
| int m_nodeCount; |
| int m_cameraCount; |
| int m_lightCount; |
| int m_renderPassCount; |
| int m_effectCount; |
| |
| Qt3DCore::QEntity *m_sceneRoot; |
| QString m_exportName; |
| QString m_exportDir; |
| |
| GltfOptions m_gltfOpts; |
| |
| QJsonObject m_obj; |
| QJsonDocument m_doc; |
| |
| QByteArray m_buffer; |
| QHash<Node *, Qt3DRender::QGeometryRenderer *> m_meshMap; |
| QHash<Node *, Qt3DRender::QMaterial *> m_materialMap; |
| QHash<Node *, Qt3DRender::QCameraLens *> m_cameraMap; |
| QHash<Node *, Qt3DRender::QAbstractLight *> m_lightMap; |
| QHash<Node *, Qt3DCore::QTransform *> m_transformMap; |
| QHash<QString, QString> m_imageMap; // Original texture URL -> generated filename |
| QHash<QString, QString> m_textureIdMap; |
| QHash<Qt3DRender::QRenderPass *, QString> m_renderPassIdMap; |
| QHash<Qt3DRender::QEffect *, QString> m_effectIdMap; |
| QHash<Qt3DRender::QTechnique *, QString> m_techniqueIdMap; |
| QHash<PropertyCacheType, QObject *> m_defaultObjectCache; |
| QHash<PropertyCacheType, QVector<QMetaProperty> > m_propertyCache; |
| |
| QHash<Qt3DRender::QGeometryRenderer *, MeshInfo> m_meshInfo; |
| QHash<Qt3DRender::QMaterial *, MaterialInfo> m_materialInfo; |
| QHash<Qt3DRender::QCameraLens *, CameraInfo> m_cameraInfo; |
| QHash<Qt3DRender::QAbstractLight *, LightInfo> m_lightInfo; |
| QHash<Qt3DRender::QShaderProgram *, ProgramInfo> m_programInfo; |
| QVector<ShaderInfo> m_shaderInfo; |
| |
| Node *m_rootNode; |
| bool m_rootNodeEmpty; |
| QSet<QString> m_exportedFiles; |
| }; |
| |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |
| |
| #endif // GLTFEXPORTER_H |