QGeometryRenderer Class
class Qt3DRender::QGeometryRendererEncapsulates geometry rendering. More...
| Header: | #include <QGeometryRenderer> |
| qmake: | QT += 3drender |
| Since: | Qt 5.7 |
| Instantiated By: | GeometryRenderer |
| Inherits: | Qt3DCore::QComponent |
| Inherited By: | Qt3DExtras::QConeMesh, Qt3DExtras::QCuboidMesh, Qt3DExtras::QCylinderMesh, Qt3DExtras::QExtrudedTextMesh, Qt3DExtras::QPlaneMesh, Qt3DExtras::QSphereMesh, Qt3DExtras::QTorusMesh, and Qt3DRender::QMesh |
This class was introduced in Qt 5.7.
Public Types
| enum | PrimitiveType { Points, Lines, LineLoop, LineStrip, Triangles, …, Patches } |
Properties
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Public Functions
| QGeometryRenderer(Qt3DCore::QNode *parent = nullptr) | |
| int | firstInstance() const |
| int | firstVertex() const |
| Qt3DRender::QGeometry * | geometry() const |
| Qt3DRender::QGeometryFactoryPtr | geometryFactory() const |
| int | indexBufferByteOffset() const |
| int | indexOffset() const |
| int | instanceCount() const |
| bool | primitiveRestartEnabled() const |
| Qt3DRender::QGeometryRenderer::PrimitiveType | primitiveType() const |
| int | restartIndexValue() const |
| void | setGeometryFactory(const Qt3DRender::QGeometryFactoryPtr &factory) |
| int | vertexCount() const |
| int | verticesPerPatch() const |
Public Slots
| void | setFirstInstance(int firstInstance) |
| void | setFirstVertex(int firstVertex) |
| void | setGeometry(Qt3DRender::QGeometry *geometry) |
| void | setIndexBufferByteOffset(int offset) |
| void | setIndexOffset(int indexOffset) |
| void | setInstanceCount(int instanceCount) |
| void | setPrimitiveRestartEnabled(bool enabled) |
| void | setPrimitiveType(Qt3DRender::QGeometryRenderer::PrimitiveType primitiveType) |
| void | setRestartIndexValue(int index) |
| void | setVertexCount(int vertexCount) |
| void | setVerticesPerPatch(int verticesPerPatch) |
Signals
| void | firstInstanceChanged(int firstInstance) |
| void | firstVertexChanged(int firstVertex) |
| void | geometryChanged(Qt3DRender::QGeometry *geometry) |
| void | indexBufferByteOffsetChanged(int offset) |
| void | indexOffsetChanged(int indexOffset) |
| void | instanceCountChanged(int instanceCount) |
| void | primitiveRestartEnabledChanged(bool primitiveRestartEnabled) |
| void | primitiveTypeChanged(Qt3DRender::QGeometryRenderer::PrimitiveType primitiveType) |
| void | restartIndexValueChanged(int restartIndexValue) |
| void | vertexCountChanged(int vertexCount) |
| void | verticesPerPatchChanged(int verticesPerPatch) |
Detailed Description
A Qt3DRender::QGeometryRenderer holds all the information necessary to draw a Qt3DRender::QGeometry. A QGeometry holds the coordinates of the geometry data - QGeometryRenderer specifies how to interpret that data.
Member Type Documentation
enum QGeometryRenderer::PrimitiveType
The type of the primitive.
| Constant | Value | Description |
|---|---|---|
Qt3DRender::QGeometryRenderer::Points | 0x0000 | List of points |
Qt3DRender::QGeometryRenderer::Lines | 0x0001 | List of lines |
Qt3DRender::QGeometryRenderer::LineLoop | 0x0002 | Connected group of lines connected at ends forming a loop |
Qt3DRender::QGeometryRenderer::LineStrip | 0x0003 | Connected group of lines |
Qt3DRender::QGeometryRenderer::Triangles | 0x0004 | List of triangles |
Qt3DRender::QGeometryRenderer::TriangleStrip | 0x0005 | List of connected triangles |
Qt3DRender::QGeometryRenderer::TriangleFan | 0x0006 | List of connected triagles where all triangles share the first vertex |
Qt3DRender::QGeometryRenderer::LinesAdjacency | 0x000A | Allows geometry shader to access adjacent lines in a line list |
Qt3DRender::QGeometryRenderer::TrianglesAdjacency | 0x000C | Allows geometry shader to access adjacent triangles in a triangle list |
Qt3DRender::QGeometryRenderer::LineStripAdjacency | 0x000B | Allows geometry shader to access adjacent lines in a line strip |
Qt3DRender::QGeometryRenderer::TriangleStripAdjacency | 0x000D | Allows geometry shader to access adjacent triangles in a triangle strip |
Qt3DRender::QGeometryRenderer::Patches | 0x000E | Only primitive type accepted by tesselation shader where a patch consists of arbitrary number of vertices |
Property Documentation
firstInstance : int
Holds the base instance.
Access functions:
| int | firstInstance() const |
| void | setFirstInstance(int firstInstance) |
Notifier signal:
| void | firstInstanceChanged(int firstInstance) |
firstVertex : int
Holds the base vertex.
Access functions:
| int | firstVertex() const |
| void | setFirstVertex(int firstVertex) |
Notifier signal:
| void | firstVertexChanged(int firstVertex) |
geometry : Qt3DRender::QGeometry*
Holds the geometry.
Access functions:
| Qt3DRender::QGeometry * | geometry() const |
| void | setGeometry(Qt3DRender::QGeometry *geometry) |
Notifier signal:
| void | geometryChanged(Qt3DRender::QGeometry *geometry) |
indexBufferByteOffset : int
Holds the byte offset into the index buffer.
Access functions:
| int | indexBufferByteOffset() const |
| void | setIndexBufferByteOffset(int offset) |
Notifier signal:
| void | indexBufferByteOffsetChanged(int offset) |
indexOffset : int
Holds the base vertex.
Access functions:
| int | indexOffset() const |
| void | setIndexOffset(int indexOffset) |
Notifier signal:
| void | indexOffsetChanged(int indexOffset) |
instanceCount : int
Holds the instance count.
Access functions:
| int | instanceCount() const |
| void | setInstanceCount(int instanceCount) |
Notifier signal:
| void | instanceCountChanged(int instanceCount) |
primitiveRestartEnabled : bool
Holds the primitive restart flag.
Access functions:
| bool | primitiveRestartEnabled() const |
| void | setPrimitiveRestartEnabled(bool enabled) |
Notifier signal:
| void | primitiveRestartEnabledChanged(bool primitiveRestartEnabled) |
primitiveType : PrimitiveType
Holds the primitive type.
Access functions:
| Qt3DRender::QGeometryRenderer::PrimitiveType | primitiveType() const |
| void | setPrimitiveType(Qt3DRender::QGeometryRenderer::PrimitiveType primitiveType) |
Notifier signal:
| void | primitiveTypeChanged(Qt3DRender::QGeometryRenderer::PrimitiveType primitiveType) |
restartIndexValue : int
Holds the restart index.
Access functions:
| int | restartIndexValue() const |
| void | setRestartIndexValue(int index) |
Notifier signal:
| void | restartIndexValueChanged(int restartIndexValue) |
vertexCount : int
Holds the primitive count.
Access functions:
| int | vertexCount() const |
| void | setVertexCount(int vertexCount) |
Notifier signal:
| void | vertexCountChanged(int vertexCount) |
verticesPerPatch : int
Holds vertices per patch.
Access functions:
| int | verticesPerPatch() const |
| void | setVerticesPerPatch(int verticesPerPatch) |
Notifier signal:
| void | verticesPerPatchChanged(int verticesPerPatch) |
Member Function Documentation
QGeometryRenderer::QGeometryRenderer(Qt3DCore::QNode *parent = nullptr)
Constructs a new QGeometryRenderer with parent.
Qt3DRender::QGeometryFactoryPtr QGeometryRenderer::geometryFactory() const
Returns the geometry functor.
See also setGeometryFactory().
void QGeometryRenderer::setGeometryFactory(const Qt3DRender::QGeometryFactoryPtr &factory)
Sets the geometry factory.
See also geometryFactory().