WebGLRenderingContext.getTexParameter()

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WebGLRenderingContext.getTexParameter() 此WebGL API方法返回特定的纹理信息。

语法

any gl.getTexParameter(target, pname);

参数

target
一个 GLenum 接口类型的绑定的点(target). 可能的值有:
  • gl.TEXTURE_2D: 一个二维纹理.
  • gl.TEXTURE_CUBE_MAP: 一个立方体纹理.
  • 当使用 WebGL 2 context接口, 可能会出现以下值:
    • gl.TEXTURE_3D: 一个三维纹理.
    • gl.TEXTURE_2D_ARRAY: 一个二维纹理数组.
pname
一个Glenum接口类型的要查询的信息. 可能的值有:
pname 返回的类型 描述 可能返回的值
可用的WebGL 1的上下文
gl.TEXTURE_MAG_FILTER GLenum 纹理的放大滤镜 gl.LINEAR (default value), gl.NEAREST.
gl.TEXTURE_MIN_FILTER GLenum 纹理的缩小滤镜 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

封装的纹理坐标方法s（对应u坐标）

 gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.
gl.TEXTURE_WRAP_T GLenum 封装的纹理坐标方法 t（对应v坐标） gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.
使用 EXT_texture_filter_anisotropic 接口增加可用的扩展方法/属性
ext.TEXTURE_MAX_ANISOTROPY_EXT GLfloat 纹理所有方向的最大值 一个浮点型的任意值.
使用WebGL 2上下文之后增加的可用方法/属性
gl.TEXTURE_BASE_LEVEL GLint 纹理贴图层级 一个整型任意值.
gl.TEXTURE_COMPARE_FUNC GLenum 比较方法 gl.LEQUAL (default value), gl.GEQUAL, gl.LESS, gl.GREATER, gl.EQUAL, gl.NOTEQUAL, gl.ALWAYS, gl.NEVER.
gl.TEXTURE_COMPARE_MODE GLenum 纹理的比较模式 gl.NONE (default value), gl.COMPARE_REF_TO_TEXTURE.
gl.TEXTURE_IMMUTABLE_FORMAT GLboolean 纹理的格式和尺寸是否可变 true 或者 false.
gl.TEXTURE_IMMUTABLE_LEVELS GLuint 纹理的可变等级 无符号整型任意值.
gl.TEXTURE_MAX_LEVEL GLint 贴图数组层级的最大值 整型任意值.
gl.TEXTURE_MAX_LOD GLfloat 纹理细致程度的最大值 浮点型任意值.
gl.TEXTURE_MIN_LOD GLfloat 纹理细致程度的最小值 浮点型任意值.
gl.TEXTURE_WRAP_R GLenum 封装的纹理坐标方法 r gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT.

返回值

返回需要的纹理信息 (和 pname类型相同). 如果发生错误, 就返回null.

示例

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

说明

说明 状态 备注
WebGL 1.0
getTexParameter		 Recommendation 最初的WebGL的定义.
OpenGL ES 2.0
glGetTexParameter		 Standard OpenGL ES 2.0 API的主页(相似).
WebGL 2.0
getTexParameter		 Editor's Draft 升级的WebGL定义.
OpenGL ES 3.0
glGetTexParameter		 Standard OpenGL ES 3.0 API的主页（相似）.

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
getTexParameterChrome Full support 9Edge Full support 12Firefox Full support 4IE Full support 11Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support 25Firefox Android Full support YesOpera Android Full support 12Safari iOS Full support 8Samsung Internet Android Full support 1.5
WebGL2Chrome Full support 56Edge No support NoFirefox Full support 51IE No support NoOpera Full support 43Safari No support NoWebView Android Full support 58Chrome Android Full support 58Firefox Android Full support 51Opera Android Full support 43Safari iOS No support NoSamsung Internet Android Full support 7.0

Legend

Full support  
Full support
No support  
No support

相关链接

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