WebGLRenderingContext.framebufferRenderbuffer()

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WebGLRenderingContext.framebufferRenderbuffer() 方法在 WebGL API attaches a WebGLRenderbuffer object to a WebGLFramebuffer 对象。

void gl.framebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);

target


									GLenum

specifying the binding point (target) for the framebuffer. Possible values:

gl.FRAMEBUFFER : Collection buffer data storage of color, alpha, depth and stencil buffers used to render an image.
当使用 WebGL 2 context , the following values are available additionally:
- gl.DRAW_FRAMEBUFFER : Equivalent to gl.FRAMEBUFFER . Used as a destination for drawing, rendering, clearing, and writing operations.
- gl.READ_FRAMEBUFFER : Used as a source for reading operations.

attachment


									GLenum

specifying the attachment point for the render buffer. Possible values:

gl.COLOR_ATTACHMENT0 : color buffer.
gl.DEPTH_ATTACHMENT : depth buffer.
gl.DEPTH_STENCIL_ATTACHMENT : depth and stencil buffer.
gl.STENCIL_ATTACHMENT : stencil buffer.
当使用 WebGL 2 context , the following values are available additionally:
- gl.COLOR_ATTACHMENT1 gl.COLOR_ATTACHMENT2 gl.COLOR_ATTACHMENT3 gl.COLOR_ATTACHMENT4 gl.COLOR_ATTACHMENT5 gl.COLOR_ATTACHMENT6 gl.COLOR_ATTACHMENT7 gl.COLOR_ATTACHMENT8 gl.COLOR_ATTACHMENT9 gl.COLOR_ATTACHMENT10 gl.COLOR_ATTACHMENT11 gl.COLOR_ATTACHMENT12 gl.COLOR_ATTACHMENT13 gl.COLOR_ATTACHMENT14 gl.COLOR_ATTACHMENT15
当使用 WEBGL_draw_buffers extension:
- ext.COLOR_ATTACHMENT0_WEBGL (same as gl.COLOR_ATTACHMENT0 )
  ext.COLOR_ATTACHMENT1_WEBGL ext.COLOR_ATTACHMENT2_WEBGL ext.COLOR_ATTACHMENT3_WEBGL ext.COLOR_ATTACHMENT4_WEBGL ext.COLOR_ATTACHMENT5_WEBGL ext.COLOR_ATTACHMENT6_WEBGL ext.COLOR_ATTACHMENT7_WEBGL ext.COLOR_ATTACHMENT8_WEBGL ext.COLOR_ATTACHMENT9_WEBGL ext.COLOR_ATTACHMENT10_WEBGL ext.COLOR_ATTACHMENT11_WEBGL ext.COLOR_ATTACHMENT12_WEBGL ext.COLOR_ATTACHMENT13_WEBGL ext.COLOR_ATTACHMENT14_WEBGL ext.COLOR_ATTACHMENT15_WEBGL

renderbuffertarget


									GLenum

specifying the binding point (target) for the render buffer. Possible values:

gl.RENDERBUFFER : Buffer data storage for single images in a renderable internal format.

renderbuffer


									WebGLRenderbuffer

object to attach.

None.

A gl.INVALID_ENUM error is thrown if target 不是 gl.FRAMEBUFFER , gl.DRAW_FRAMEBUFFER ，或 gl.READ_FRAMEBUFFER .
A gl.INVALID_ENUM error is thrown if renderbuffertarget 不是 gl.RENDERBUFFER .
A gl.INVALID_ENUM error is thrown if attachment is not one of the allowed enums.

gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, renderbuffer);

规范	状态	注释
WebGL 1.0 The definition of 'framebufferRenderbuffer' in that specification.	推荐	Initial definition for WebGL.
OpenGL ES 2.0 The definition of 'glFramebufferRenderbuffer' in that specification.	标准	Man page of the (similar) OpenGL API.
OpenGL ES 3.0 The definition of 'glFramebufferRenderbuffer' in that specification.	标准	Man page of the (similar) OpenGL ES 3 API.