The QOpenGLFramebufferObjectFormat class specifies the format of an OpenGL framebuffer object. More...
Header: | #include <QOpenGLFramebufferObjectFormat> |
CMake: | find_package(Qt6 COMPONENTS OpenGL REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::OpenGL) |
qmake: | QT += opengl |
Since: | Qt 5.0 |
QOpenGLFramebufferObjectFormat(const QOpenGLFramebufferObjectFormat &other) | |
QOpenGLFramebufferObjectFormat() | |
QOpenGLFramebufferObjectFormat & | operator=(const QOpenGLFramebufferObjectFormat &other) |
~QOpenGLFramebufferObjectFormat() | |
QOpenGLFramebufferObject::Attachment | attachment() const |
GLenum | internalTextureFormat() const |
bool | mipmap() const |
int | samples() const |
void | setAttachment(QOpenGLFramebufferObject::Attachment attachment) |
void | setInternalTextureFormat(GLenum internalTextureFormat) |
void | setMipmap(bool enabled) |
void | setSamples(int samples) |
void | setTextureTarget(GLenum target) |
GLenum | textureTarget() const |
bool | operator!=(const QOpenGLFramebufferObjectFormat &other) const |
bool | operator==(const QOpenGLFramebufferObjectFormat &other) const |
A framebuffer object has several characteristics:
Note that the desired attachments or number of samples per pixels might not be supported by the hardware driver. Call QOpenGLFramebufferObject::format() after creating a QOpenGLFramebufferObject to find the exact format that was used to create the frame buffer object.
See also QOpenGLFramebufferObject.
Constructs a copy of other.
Creates a QOpenGLFramebufferObjectFormat object for specifying the format of an OpenGL framebuffer object.
By default the format specifies a non-multisample framebuffer object with no depth/stencil attachments, texture target GL_TEXTURE_2D
, and internal format GL_RGBA8
. On OpenGL/ES systems, the default internal format is GL_RGBA
.
See also samples(), attachment(), and internalTextureFormat().
Assigns other to this object.
Destroys the QOpenGLFramebufferObjectFormat.
Returns the configuration of the depth and stencil buffers attached to a framebuffer object. The default is QOpenGLFramebufferObject::NoAttachment.
See also setAttachment().
Returns the internal format of a framebuffer object's texture or multisample framebuffer object's color buffer. The default is GL_RGBA8
on desktop OpenGL systems, and GL_RGBA
on OpenGL/ES systems.
See also setInternalTextureFormat().
Returns true
if mipmapping is enabled.
See also setMipmap().
Returns the number of samples per pixel if a framebuffer object is a multisample framebuffer object. Otherwise, returns 0. The default value is 0.
See also setSamples().
Sets the attachment configuration of a framebuffer object to attachment.
See also attachment().
Sets the internal format of a framebuffer object's texture or multisample framebuffer object's color buffer to internalTextureFormat.
See also internalTextureFormat().
Enables mipmapping if enabled is true; otherwise disables it.
Mipmapping is disabled by default.
If mipmapping is enabled, additional memory will be allocated for the mipmap levels. The mipmap levels can be updated by binding the texture and calling glGenerateMipmap(). Mipmapping cannot be enabled for multisampled framebuffer objects.
See also mipmap() and QOpenGLFramebufferObject::texture().
Sets the number of samples per pixel for a multisample framebuffer object to samples. The default sample count of 0 represents a regular non-multisample framebuffer object.
If the desired amount of samples per pixel is not supported by the hardware then the maximum number of samples per pixel will be used. Note that multisample framebuffer objects cannot be bound as textures. Also, the GL_EXT_framebuffer_multisample
extension is required to create a framebuffer with more than one sample per pixel.
See also samples().
Sets the texture target of the texture attached to a framebuffer object to target. Ignored for multisample framebuffer objects.
See also textureTarget() and samples().
Returns the texture target of the texture attached to a framebuffer object. Ignored for multisample framebuffer objects. The default is GL_TEXTURE_2D
.
See also setTextureTarget() and samples().
Returns false
if all the options of this framebuffer object format are the same as other; otherwise returns true
.
Returns true
if all the options of this framebuffer object format are the same as other; otherwise returns false
.
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Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-6.2/qopenglframebufferobjectformat.html