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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

WebGLRenderingContext.getRenderbufferParameter() 方法在 WebGL API returns information about the renderbuffer.

句法

any gl.getRenderbufferParameter(target, pname);
					

参数

target

Glenum specifying the target renderbuffer object. Possible values:

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

pname

Glenum specifying the information to query. Possible values:

• gl.RENDERBUFFER_WIDTH : Returns a GLint indicating the width of the image of the currently bound renderbuffer.
• gl.RENDERBUFFER_HEIGHT : Returns a GLint indicating the height of the image of the currently bound renderbuffer.
• gl.RENDERBUFFER_INTERNAL_FORMAT : Returns a GLenum indicating the internal format of the currently bound renderbuffer. The default is gl.RGBA4 . Possible return values:
  • gl.RGBA4 : 4 red bits, 4 green bits, 4 blue bits 4 alpha bits.
  • gl.RGB565 : 5 red bits, 6 green bits, 5 blue bits.
  • gl.RGB5_A1 : 5 red bits, 5 green bits, 5 blue bits, 1 alpha bit.
  • gl.DEPTH_COMPONENT16 : 16 depth bits.
  • gl.STENCIL_INDEX8 : 8 stencil bits.
• gl.RENDERBUFFER_GREEN_SIZE : Returns a GLint that is the resolution size (in bits) for the green color.
• gl.RENDERBUFFER_BLUE_SIZE : Returns a GLint that is the resolution size (in bits) for the blue color.
• gl.RENDERBUFFER_RED_SIZE : Returns a GLint that is the resolution size (in bits) for the red color.
• gl.RENDERBUFFER_ALPHA_SIZE : Returns a GLint that is the resolution size (in bits) for the alpha component.
• gl.RENDERBUFFER_DEPTH_SIZE : Returns a GLint that is the resolution size (in bits) for the depth component.
• gl.RENDERBUFFER_STENCIL_SIZE : Returns a GLint that is the resolution size (in bits) for the stencil component.
• 当使用 WebGL 2 context , the following value is available additionally:
  • gl.RENDERBUFFER_SAMPLES : Returns a GLint indicating the number of samples of the image of the currently bound renderbuffer.

返回值

Depends on the requested information (as specified with pname ). Either a GLint 或 GLenum .

范例

gl.getRenderbufferParameter(gl.RENDERBUFFER, gl.RENDERBUFFER_WIDTH);
					

规范

规范	状态	注释
WebGL 1.0 The definition of 'getRenderbufferParameter' in that specification.	推荐	Initial definition for WebGL.
OpenGL ES 2.0 The definition of 'glGetRenderbufferParameteriv' in that specification.	标准	Man page of the (similar) OpenGL API.
WebGL 2.0 The definition of 'getRenderbufferParameter' in that specification.	编者草案	Updated definition for WebGL 2.
OpenGL ES 3.0 The definition of 'glGetRenderbufferParameteriv' in that specification.	标准	Man page of the (similar) OpenGL ES 3 API. Adds a new pname 值： gl.RENDERBUFFER_SAMPLES

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
getRenderbufferParameter	Chrome 9	Edge 12	Firefox 4	IE 11	Opera 12	Safari 5.1	WebView Android Yes	Chrome Android 25	Firefox Android Yes	Opera Android 12	Safari iOS 8	Samsung Internet Android 1.5
WebGL2	Chrome 56	Edge 79	Firefox 51	IE No	Opera 43	Safari No	WebView Android 58	Chrome Android 58	Firefox Android 51	Opera Android 43	Safari iOS No	Samsung Internet Android 7.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• WebGLRenderingContext.bindRenderbuffer()
• WebGLRenderingContext.createRenderbuffer()
• WebGLRenderingContext.deleteRenderbuffer()
• WebGLRenderingContext.renderbufferStorage()
• Other buffers: WebGLBuffer , WebGLFramebuffer

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. WebGL API
2. WebGLRenderingContext
3. 特性

   1. canvas
   2. drawingBufferHeight
   3. drawingBufferWidth
4. 方法

   1. activeTexture()
   2. attachShader()
   3. bindAttribLocation()
   4. bindBuffer()
   5. bindFramebuffer()
   6. bindRenderbuffer()
   7. bindTexture()
   8. blendColor()
   9. blendEquation()
   10. blendEquationSeparate()
   11. blendFunc()
   12. blendFuncSeparate()
   13. bufferData()
   14. bufferSubData()
   15. checkFramebufferStatus()
   16. clear()
   17. clearColor()
   18. clearDepth()
   19. clearStencil()
   20. colorMask()
   21. commit()
   22. compileShader()
   23. compressedTexImage[23]D()
   24. compressedTexSubImage2D()
   25. copyTexImage2D()
   26. copyTexSubImage2D()
   27. createBuffer()
   28. createFramebuffer()
   29. createProgram()
   30. createRenderbuffer()
   31. createShader()
   32. createTexture()
   33. cullFace()
   34. deleteBuffer()
   35. deleteFramebuffer()
   36. deleteProgram()
   37. deleteRenderbuffer()
   38. deleteShader()
   39. deleteTexture()
   40. depthFunc()
   41. depthMask()
   42. depthRange()
   43. detachShader()
   44. disable()
   45. disableVertexAttribArray()
   46. drawArrays()
   47. drawElements()
   48. enable()
   49. enableVertexAttribArray()
   50. finish()
   51. flush()
   52. framebufferRenderbuffer()
   53. framebufferTexture2D()
   54. frontFace()
   55. generateMipmap()
   56. getActiveAttrib()
   57. getActiveUniform()
   58. getAttachedShaders()
   59. getAttribLocation()
   60. getBufferParameter()
   61. getContextAttributes()
   62. getError()
   63. getExtension()
   64. getFramebufferAttachmentParameter()
   65. getParameter()
   66. getProgramInfoLog()
   67. getProgramParameter()
   68. getRenderbufferParameter()
   69. getShaderInfoLog()
   70. getShaderParameter()
   71. getShaderPrecisionFormat()
   72. getShaderSource()
   73. getSupportedExtensions()
   74. getTexParameter()
   75. getUniform()
   76. getUniformLocation()
   77. getVertexAttrib()
   78. getVertexAttribOffset()
   79. hint()
   80. isBuffer()
   81. isContextLost()
   82. isEnabled()
   83. isFramebuffer()
   84. isProgram()
   85. isRenderbuffer()
   86. isShader()
   87. isTexture()
   88. lineWidth()
   89. linkProgram()
   90. pixelStorei()
   91. polygonOffset()
   92. readPixels()
   93. renderbufferStorage()
   94. sampleCoverage()
   95. scissor()
   96. shaderSource()
   97. stencilFunc()
   98. stencilFuncSeparate()
   99. stencilMask()
   100. stencilMaskSeparate()
   101. stencilOp()
   102. stencilOpSeparate()
   103. texImage2D()
   104. texParameter[fi]()
   105. texSubImage2D()
   106. uniform[1234][fi][v]()
   107. uniformMatrix[234]fv()
   108. useProgram()
   109. validateProgram()
   110. vertexAttrib[1234]f[v]()
   111. vertexAttribPointer()
   112. viewport()
5. WebGL 相关页面

   1. ANGLE_instanced_arrays
   2. EXT_blend_minmax
   3. EXT_color_buffer_half_float
   4. EXT_disjoint_timer_query
   5. EXT_frag_depth
   6. EXT_sRGB
   7. EXT_shader_texture_lod
   8. EXT_texture_filter_anisotropic
   9. OES_element_index_uint
   10. OES_standard_derivatives
   11. OES_texture_float
   12. OES_texture_float_linear
   13. OES_texture_half_float
   14. OES_texture_half_float_linear
   15. OES_vertex_array_object
   16. WEBGL_color_buffer_float
   17. WEBGL_compressed_texture_atc
   18. WEBGL_compressed_texture_etc1
   19. WEBGL_compressed_texture_pvrtc
   20. WEBGL_compressed_texture_s3tc
   21. WEBGL_compressed_texture_s3tc_srgb
   22. WEBGL_debug_renderer_info
   23. WEBGL_debug_shaders
   24. WEBGL_depth_texture
   25. WEBGL_draw_buffers
   26. WEBGL_lose_context
   27. WebGL2RenderingContext
   28. WebGLActiveInfo
   29. WebGLBuffer
   30. WebGLContextEvent
   31. WebGLFramebuffer
   32. WebGLObject
   33. WebGLProgram
   34. WebGLQuery
   35. WebGLRenderbuffer
   36. WebGLSampler
   37. WebGLShader
   38. WebGLShaderPrecisionFormat
   39. WebGLSync
   40. WebGLTexture
   41. WebGLTransformFeedback
   42. WebGLUniformLocation
   43. WebGLVertexArrayObject