QShaderProgramBuilder Class▲
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Header: QShaderProgramBuilder
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CMake:
find_package(Qt6 REQUIRED COMPONENTS 3drender)
target_link_libraries(mytarget PRIVATE Qt6::3drender)
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qmake: QT += 3drender
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Inherited By:
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Instantiated By: qml-qt3d-render-shaderprogrambuilder.xml
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Inherits: Qt3DCore::QNode
Detailed Description▲
A shader program builder consists of several different shader graphs used to generate shader code.
A cache of generated shader code is maintained. Generated shaders are by defaults saved in QStandardPaths::writableLocation(QStandardPaths::TempLocation)). This path can be overridden by setting environment variable QT3D_WRITABLE_CACHE_PATH to a valid writable path.
The use of the cache can be disabled by setting environment variable QT3D_DISABLE_SHADER_CACHE.
In most cases, changes made to a graph are detected by Qt 3D and a new cache entry will be generated. One case were this will not happen is when code snippets included by a graphs are changed. To work around that, clearing the cache directory or setting environment variable QT3D_REBUILD_SHADER_CACHE can be used to force shader code to be generated again.
Property Documentation▲
[read-only] computeShaderCode : const QByteArray▲
Holds the generate compute shader code.
Access functions:
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computeShaderCode() const
Notifier signal:
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void computeShaderCodeChanged(const &computeShaderCode)
computeShaderGraph : QUrl▲
Holds the URL to the compute shader graph used by this shader program builder.
Access functions:
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computeShaderGraph() const
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void setComputeShaderGraph(const &computeShaderGraph)
Notifier signal:
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void computeShaderGraphChanged(const &computeShaderGraph)
enabledLayers : QStringList▲
Holds the list of layers this builder will activate on the shader graphs during code generation.
Access functions:
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enabledLayers() const
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void setEnabledLayers(const &layers)
Notifier signal:
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void enabledLayersChanged(const &layers)
[read-only] fragmentShaderCode : const QByteArray▲
Holds the generate fragment shader code.
Access functions:
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fragmentShaderCode() const
Notifier signal:
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void fragmentShaderCodeChanged(const &fragmentShaderCode)
fragmentShaderGraph : QUrl▲
Holds the URL to the fragment shader graph used by this shader program builder.
Access functions:
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fragmentShaderGraph() const
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void setFragmentShaderGraph(const &fragmentShaderGraph)
Notifier signal:
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void fragmentShaderGraphChanged(const &fragmentShaderGraph)
[read-only] geometryShaderCode : const QByteArray▲
Holds the generate geometry shader code.
Access functions:
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geometryShaderCode() const
Notifier signal:
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void geometryShaderCodeChanged(const &geometryShaderCode)
geometryShaderGraph : QUrl▲
Holds the URL to the geometry shader graph used by this shader program builder.
Access functions:
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geometryShaderGraph() const
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void setGeometryShaderGraph(const &geometryShaderGraph)
Notifier signal:
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void geometryShaderGraphChanged(const &geometryShaderGraph)
shaderProgram : Qt3DRender::QShaderProgram*▲
Holds the shader program on which this builder generates code.
Access functions:
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*shaderProgram() const
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void setShaderProgram( *program)
Notifier signal:
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void shaderProgramChanged( *shaderProgram)
[read-only] tessellationControlShaderCode : const QByteArray▲
Holds the generate tessellation control shader code.
Access functions:
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tessellationControlShaderCode() const
Notifier signal:
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void tessellationControlShaderCodeChanged(const &tessellationControlShaderCode)
tessellationControlShaderGraph : QUrl▲
Holds the URL to the tesselation control shader graph used by this shader program builder.
Access functions:
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tessellationControlShaderGraph() const
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void setTessellationControlShaderGraph(const &tessellationControlShaderGraph)
Notifier signal:
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void tessellationControlShaderGraphChanged(const &tessellationControlShaderGraph)
[read-only] tessellationEvaluationShaderCode : const QByteArray▲
Holds the generate tessellation evaluation shader code.
Access functions:
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tessellationEvaluationShaderCode() const
Notifier signal:
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void tessellationEvaluationShaderCodeChanged(const &tessellationEvaluationShaderCode)
tessellationEvaluationShaderGraph : QUrl▲
Holds the URL to the tesselation evaluation shader graph used by this shader program builder.
Access functions:
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tessellationEvaluationShaderGraph() const
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void setTessellationEvaluationShaderGraph(const &tessellationEvaluationShaderGraph)
Notifier signal:
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void tessellationEvaluationShaderGraphChanged(const &tessellationEvaluationShaderGraph)
[read-only] vertexShaderCode : const QByteArray▲
Holds the generate vertex shader code.
Access functions:
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vertexShaderCode() const
Notifier signal:
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void vertexShaderCodeChanged(const &vertexShaderCode)
vertexShaderGraph : QUrl▲
Holds the URL to the vertex shader graph used by this shader program builder.
Access functions:
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vertexShaderGraph() const
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void setVertexShaderGraph(const &vertexShaderGraph)
Notifier signal:
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void vertexShaderGraphChanged(const &vertexShaderGraph)