The QGLFramebufferObjectFormat class specifies the format of an OpenGL framebuffer object. 更多...
The QGLFramebufferObjectFormat class specifies the format of an OpenGL framebuffer object.
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 QGLFramebufferObject.format () after creating a QGLFramebufferObject to find the exact format that was used to create the frame buffer object.
创建 QGLFramebufferObjectFormat object for specifying the format of an OpenGL framebuffer 对象。
By default the format specifies a non-multisample framebuffer object with no 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 ().
构造副本为 other .
Returns the configuration of the depth and stencil buffers attached to a framebuffer object. The default is QGLFramebufferObject.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 ().
Returns true if mipmapping is enabled.
该函数在 Qt 4.8 引入。
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 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.
该函数在 Qt 4.8 引入。
另请参阅 mipmap () 和 QGLFramebufferObject.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 can not 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 对象。
另请参阅 textureTarget () and samples ().
Returns the texture target of the texture attached to a framebuffer object. Ignored for multisample framebuffer objects. 默认为 GL_TEXTURE_2D .
另请参阅 setTextureTarget () and samples ().
