QOpenGLFramebufferObjectFormat 类指定 OpenGL 帧缓冲对象的格式。 更多...
头: | #include <QOpenGLFramebufferObjectFormat> |
qmake: | QT += gui |
Since: | Qt 5.0 |
该类在 Qt 5.0 引入。
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.
另请参阅 QOpenGLFramebufferObject .
构造副本为 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
.
另请参阅 samples (), attachment (),和 internalTextureFormat ().
赋值 other 到此对象。
销毁 QOpenGLFramebufferObjectFormat .
Returns the configuration of the depth and stencil buffers attached to a framebuffer object. The default is QOpenGLFramebufferObject::NoAttachment .
另请参阅 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.
另请参阅 setInternalTextureFormat ().
返回
true
if mipmapping is enabled.
另请参阅 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.
另请参阅 setSamples ().
Sets the attachment configuration of a framebuffer object to attachment .
另请参阅 attachment ().
Sets the internal format of a framebuffer object's texture or multisample framebuffer object's color buffer to internalTextureFormat .
另请参阅 internalTextureFormat ().
Enables mipmapping if enabled 为 true;否则禁用它。
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.
另请参阅 mipmap () 和 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.
另请参阅 samples ().
Sets the texture target of the texture attached to a framebuffer object to target . Ignored for multisample framebuffer objects.
另请参阅 textureTarget () 和 samples ().
Returns the texture target of the texture attached to a framebuffer object. Ignored for multisample framebuffer objects. The default is
GL_TEXTURE_2D
.
另请参阅 setTextureTarget () 和 samples ().
返回
false
if all the options of this framebuffer object format are the same as
other
;否则返回
true
.
返回
true
if all the options of this framebuffer object format are the same as
other
;否则返回
false
.