- Qt 6.4
- Qt 3D
- C++ Classes
- Qt3DRender
- QRenderCapabilities
- Qt 6.4.3 Reference Documentation

# QRenderCapabilities Class

class Qt3DRender::QRenderCapabilities

The QRenderCapabilities class holds settings related to available rendering engines. More...

Header: | #include <QRenderCapabilities>
CMake: | find_package(Qt6 REQUIRED COMPONENTS 3drender) target_link_libraries(mytarget PRIVATE Qt6::3drender)
qmake: | QT += 3drender
Since: | Qt 5.15
Instantiated By: | RenderCapabilities
Inherits: | QObject

- List of all members, including inherited members

## Properties

api : const API driverVersion : const QString extensions : const QStringList glslVersion : const QString majorVersion : const int maxComputeInvocations : const int maxComputeSharedMemorySize : const int maxImageUnits : const int maxSSBOBindings : const int maxSSBOSize : const int maxSamples : const int maxTextureLayers : const int maxTextureSize : const int maxTextureUnits : const int maxUBOBindings : const int maxUBOSize : const int | maxWorkGroupCountX : const int maxWorkGroupCountY : const int maxWorkGroupCountZ : const int maxWorkGroupSizeX : const int maxWorkGroupSizeY : const int maxWorkGroupSizeZ : const int minorVersion : const int profile : const Profile renderer : const QString supportsCompute : const bool supportsImageStore : const bool supportsSSBO : const bool supportsUBO : const bool valid : const bool vendor : const QString

## Public Functions

Qt3DRender::QRenderCapabilities::API | api() const
QString | driverVersion() const
QStringList | extensions() const
QString | glslVersion() const
bool | isValid() const
int | majorVersion() const
int | maxComputeInvocations() const
int | maxComputeSharedMemorySize() const
int | maxImageUnits() const
int | maxSSBOBindings() const
int | maxSSBOSize() const
int | maxSamples() const
int | maxTextureLayers() const
int | maxTextureSize() const
int | maxTextureUnits() const
int | maxUBOBindings() const
int | maxUBOSize() const
int | maxWorkGroupCountX() const
int | maxWorkGroupCountY() const
int | maxWorkGroupCountZ() const
int | maxWorkGroupSizeX() const
int | maxWorkGroupSizeY() const
int | maxWorkGroupSizeZ() const
int | minorVersion() const
Qt3DRender::QRenderCapabilities::Profile | profile() const
QString | renderer() const
bool | supportsCompute() const
bool | supportsImageStore() const
bool | supportsSSBO() const
bool | supportsUBO() const
QString | vendor() const

## Detailed Description

QRenderCapabilities provides details of graphical features that are available at runtime. It can be used to decide which code path to use for some algorithms, for example, depending on whether compute shaders are available or not.

## Property Documentation

### `[read-only]` api : const API

Returns which API is currently in use.

Access functions:

Qt3DRender::QRenderCapabilities::API | api() const

### `[read-only]` driverVersion : const QString

Returns the driver version string.

Access functions:

QString | driverVersion() const

### `[read-only]` extensions : const QStringList

Returns the list of extensions currently available.

Access functions:

QStringList | extensions() const

### `[read-only]` glslVersion : const QString

Returns the GLSL version string.

Access functions:

QString | glslVersion() const

### `[read-only]` majorVersion : const int

Returns the major version number currently in use.

Access functions:

int | majorVersion() const

### `[read-only]` maxComputeInvocations : const int

Returns the maximum number of Compute Shaders available.

Access functions:

int | maxComputeInvocations() const

### `[read-only]` maxComputeSharedMemorySize : const int

Returns the maximum amount of shared memory available for Compute Shaders.

Access functions:

int | maxComputeSharedMemorySize() const

### `[read-only]` maxImageUnits : const int

Returns the maximum number of available image units.

Access functions:

int | maxImageUnits() const

### `[read-only]` maxSSBOBindings : const int

Returns the maximum number of available SSBO binding points, if supported.

Access functions:

int | maxSSBOBindings() const

### `[read-only]` maxSSBOSize : const int

Returns the maximum size of SSBOs, if available.

Access functions:

int | maxSSBOSize() const

### `[read-only]` maxSamples : const int

Returns the maximum number of samples available for MSAA.

Access functions:

int | maxSamples() const

### `[read-only]` maxTextureLayers : const int

Returns the number of available texture layers.

Access functions:

int | maxTextureLayers() const

### `[read-only]` maxTextureSize : const int

Returns the maximum size of textures.

Access functions:

int | maxTextureSize() const

### `[read-only]` maxTextureUnits : const int

Returns the number of available texture units.

Access functions:

int | maxTextureUnits() const

### `[read-only]` maxUBOBindings : const int

Returns the maximum number of available UBO binding points, if supported.

Access functions:

int | maxUBOBindings() const

### `[read-only]` maxUBOSize : const int

Returns the maximum size of UBOs, if supported.

Access functions:

int | maxUBOSize() const

### `[read-only]` maxWorkGroupCountX : const int

Returns the maximum number of available Compute Shader workgroups in the X axis.

Access functions:

int | maxWorkGroupCountX() const

### `[read-only]` maxWorkGroupCountY : const int

Returns the maximum number of available Compute Shader workgroups in the Y axis.

Access functions:

int | maxWorkGroupCountY() const

### `[read-only]` maxWorkGroupCountZ : const int

Returns the maximum number of available Compute Shader workgroups in the Z axis.

Access functions:

int | maxWorkGroupCountZ() const

### `[read-only]` maxWorkGroupSizeX : const int

Returns the maximum size of Compute Shader local workgroups in the X axis.

Access functions:

int | maxWorkGroupSizeX() const

### `[read-only]` maxWorkGroupSizeY : const int

Returns the maximum size of Compute Shader local workgroups in the Y axis.

Access functions:

int | maxWorkGroupSizeY() const

### `[read-only]` maxWorkGroupSizeZ : const int

Returns the maximum size of Compute Shader local workgroups in the Z axis.

Access functions:

int | maxWorkGroupSizeZ() const

### `[read-only]` minorVersion : const int

Returns the minor version number currently in use.

Access functions:

int | minorVersion() const

### `[read-only]` profile : const Profile

Returns which profile (if applicable) is currently in use.

Access functions:

Qt3DRender::QRenderCapabilities::Profile | profile() const

### `[read-only]` renderer : const QString

Returns the device identification string.

Access functions:

QString | renderer() const

### `[read-only]` supportsCompute : const bool

Returns true if Compute Shaders are supported.

Access functions:

bool | supportsCompute() const

### `[read-only]` supportsImageStore : const bool

Returns true if Image Store operations are supported.

Access functions:

bool | supportsImageStore() const

### `[read-only]` supportsSSBO : const bool

Returns true if SSBOs are supported.

Access functions:

bool | supportsSSBO() const

### `[read-only]` supportsUBO : const bool

Returns true if UBOs are supported.

Access functions:

bool | supportsUBO() const

### `[read-only]` valid : const bool

true if the data is valid, otherwise Qt 3D failed to query the available hardware.

Access functions:

bool | isValid() const

### `[read-only]` vendor : const QString

Returns the vendor identification string.

Access functions:

QString | vendor() const