Back to Qt.io
Contact Us Blog Download Qt

QRhiVertexInputLayout Class

Describes the layout of vertex inputs consumed by a vertex shader. More...

Header: #include <QRhiVertexInputLayout>
CMake: find_package(Qt6 REQUIRED COMPONENTS Gui)
target_link_libraries(mytarget PRIVATE Qt6::Gui)
qmake: QT += gui
Since: Qt 6.6

Public Functions

QRhiVertexInputLayout()
const QRhiVertexInputAttribute *attributeAt(qsizetype index) const
qsizetype attributeCount() const
const QRhiVertexInputBinding *bindingAt(qsizetype index) const
qsizetype bindingCount() const
const QRhiVertexInputAttribute *cbeginAttributes() const
const QRhiVertexInputBinding *cbeginBindings() const
const QRhiVertexInputAttribute *cendAttributes() const
const QRhiVertexInputBinding *cendBindings() const
void setAttributes(std::initializer_list<QRhiVertexInputAttribute> list)
void setAttributes(InputIterator first, InputIterator last)
void setBindings(std::initializer_list<QRhiVertexInputBinding> list)
void setBindings(InputIterator first, InputIterator last)
size_t qHash(const QRhiVertexInputLayout &v, size_t seed = 0)
bool operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b)
bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b)

Detailed Description

The vertex input layout is defined by the collections of QRhiVertexInputBinding and QRhiVertexInputAttribute.

As an example, let's assume that we have a single buffer with 3 component vertex positions and 2 component UV coordinates interleaved (x, y, z, u, v), that the position and UV are expected at input locations 0 and 1 by the vertex shader, and that the vertex buffer will be bound at binding point 0 using setVertexInput() later on:

QRhiVertexInputLayout inputLayout;
inputLayout.setBindings({
    { 5 * sizeof(float) }
});
inputLayout.setAttributes({
    { 0, 0, QRhiVertexInputAttribute::Float3, 0 },
    { 0, 1, QRhiVertexInputAttribute::Float2, 3 * sizeof(float) }
});

Note: This is a RHI API with limited compatibility guarantees, see QRhi for details.

Member Function Documentation

[constexpr noexcept] QRhiVertexInputLayout::QRhiVertexInputLayout()

Constructs an empty vertex input layout description.

const QRhiVertexInputAttribute *QRhiVertexInputLayout::attributeAt(qsizetype index) const

Returns the attribute at the given index.

qsizetype QRhiVertexInputLayout::attributeCount() const

Returns the number of attributes.

const QRhiVertexInputBinding *QRhiVertexInputLayout::bindingAt(qsizetype index) const

Returns the binding at the given index.

qsizetype QRhiVertexInputLayout::bindingCount() const

Returns the number of bindings.

const QRhiVertexInputAttribute *QRhiVertexInputLayout::cbeginAttributes() const

Returns a const iterator pointing to the first item in the attribute list.

const QRhiVertexInputBinding *QRhiVertexInputLayout::cbeginBindings() const

Returns a const iterator pointing to the first item in the binding list.

const QRhiVertexInputAttribute *QRhiVertexInputLayout::cendAttributes() const

Returns a const iterator pointing just after the last item in the attribute list.

const QRhiVertexInputBinding *QRhiVertexInputLayout::cendBindings() const

Returns a const iterator pointing just after the last item in the binding list.

void QRhiVertexInputLayout::setAttributes(std::initializer_list<QRhiVertexInputAttribute> list)

Sets the attributes from the specified list.

template <typename InputIterator> void QRhiVertexInputLayout::setAttributes(InputIterator first, InputIterator last)

Sets the attributes using the iterators first and last.

void QRhiVertexInputLayout::setBindings(std::initializer_list<QRhiVertexInputBinding> list)

Sets the bindings from the specified list.

template <typename InputIterator> void QRhiVertexInputLayout::setBindings(InputIterator first, InputIterator last)

Sets the bindings using the iterators first and last.

Related Non-Members

[noexcept] size_t qHash(const QRhiVertexInputLayout &v, size_t seed = 0)

Returns the hash value for v, using seed to seed the calculation.

[noexcept] bool operator!=(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b)

Returns false if the values in the two QRhiVertexInputLayout objects a and b are equal; otherwise returns true.

[noexcept] bool operator==(const QRhiVertexInputLayout &a, const QRhiVertexInputLayout &b)

Returns true if the values in the two QRhiVertexInputLayout objects a and b are equal.

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.