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  4. WebGLRenderingContext.getTexParameter()

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WebGLRenderingContext.getTexParameter() 方法在 WebGL API returns information about the given texture.

句法 

any gl.getTexParameter(target, pname);

参数

target
A GLenum specifying the binding point (target). Possible values:
  • gl.TEXTURE_2D : A two-dimensional texture.
  • gl.TEXTURE_CUBE_MAP : A cube-mapped texture.
  • 当使用 WebGL 2 context , the following values are available additionally:
    • gl.TEXTURE_3D : A three-dimensional texture.
    • gl.TEXTURE_2D_ARRAY : A two-dimensional array texture.
pname
Glenum specifying the information to query. Possible values:
pname 返回类型 描述 Possible return values
Available in a WebGL 1 context
gl.TEXTURE_MAG_FILTER GLenum Texture magnification filter gl.LINEAR (default value), gl.NEAREST .
gl.TEXTURE_MIN_FILTER GLenum Texture minification filter gl.LINEAR , gl.NEAREST , gl.NEAREST_MIPMAP_NEAREST , gl.LINEAR_MIPMAP_NEAREST , gl.NEAREST _MIPMAP_LINEAR (default value), gl.LINEAR_MIPMAP_LINEAR .
gl.TEXTURE_WRAP_S GLenum Wrapping function for texture coordinate s gl.REPEAT (default value), gl.CLAMP_TO_EDGE , gl.MIRRORED_REPEAT .
gl.TEXTURE_WRAP_T GLenum Wrapping function for texture coordinate t gl.REPEAT (default value), gl.CLAMP_TO_EDGE , gl.MIRRORED_REPEAT .
Additionally available when using the EXT_texture_filter_anisotropic extension
ext.TEXTURE_MAX_ANISOTROPY_EXT GLfloat Maximum anisotropy for a texture Any float values.
Additionally available when using a WebGL 2 context
gl.TEXTURE_BASE_LEVEL GLint Texture mipmap level Any int values.
gl.TEXTURE_COMPARE_FUNC GLenum Comparison function gl.LEQUAL (default value), gl.GEQUAL , gl.LESS , gl.GREATER , gl.EQUAL , gl.NOTEQUAL , gl.ALWAYS , gl.NEVER .
gl.TEXTURE_COMPARE_MODE GLenum Texture comparison mode gl.NONE (default value), gl.COMPARE_REF_TO_TEXTURE .
gl.TEXTURE_IMMUTABLE_FORMAT GLboolean Immutability of the texture format and size true or false.
gl.TEXTURE_IMMUTABLE_LEVELS GLuint ? Any uint values.
gl.TEXTURE_MAX_LEVEL GLint Maximum texture mipmap array level Any int values.
gl.TEXTURE_MAX_LOD GLfloat Texture maximum level-of-detail value Any float values.
gl.TEXTURE_MIN_LOD GLfloat Texture minimum level-of-detail value Any float values.
gl.TEXTURE_WRAP_R GLenum Wrapping function for texture coordinate r gl.REPEAT (default value), gl.CLAMP_TO_EDGE , gl.MIRRORED_REPEAT .

返回值

Returns the requested texture information (as specified with pname ). If an error occurs, null 被返回。

范例 

gl.getTexParameter(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER);

规范

规范 状态 注释
WebGL 1.0
The definition of 'getTexParameter' in that specification. 		推荐 Initial definition for WebGL.
OpenGL ES 2.0
The definition of 'glGetTexParameter' in that specification. 		标准 Man page of the (similar) OpenGL ES 2.0 API.
WebGL 2.0
The definition of 'getTexParameter' in that specification. 		编者草案 Updated definition for WebGL.
OpenGL ES 3.0
The definition of 'glGetTexParameter' in that specification. 		标准 Man page of the (similar) OpenGL ES 3.0 API.

浏览器兼容性

更新 GitHub 上的兼容性数据
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Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
getTexParameter 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

元数据

  • 最后修改：
  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