The WebGL API provides several constants that are passed into or returned by functions. All constants are of type GLenum
.
Standard WebGL constants are installed on the WebGLRenderingContext
and WebGL2RenderingContext
objects, so that you use them as gl.CONSTANT_NAME
:
var canvas = document.getElementById('myCanvas');
var gl = canvas.getContext('webgl');
gl.getParameter(gl.LINE_WIDTH);
Some constants are also provided by WebGL extensions. A list is provided below.
var debugInfo = gl.getExtension('WEBGL_debug_renderer_info');
var vendor = gl.getParameter(debugInfo.UNMASKED_VENDOR_WEBGL);
The WebGL tutorial has more information, examples, and resources on how to get started with WebGL.
Table of contents
Standard WebGL 1 constants
These constants are defined on the WebGLRenderingContext
interface.
Clearing buffers
Constants passed to WebGLRenderingContext.clear()
to clear buffer masks.
Constant name
|
Value
|
Description
|
DEPTH_BUFFER_BIT
|
0x00000100
|
Passed to clear to clear the current depth buffer.
|
STENCIL_BUFFER_BIT
|
0x00000400
|
Passed to clear to clear the current stencil buffer.
|
COLOR_BUFFER_BIT
|
0x00004000
|
Passed to clear to clear the current color buffer.
|
Rendering primitives
Constants passed to WebGLRenderingContext.drawElements()
or WebGLRenderingContext.drawArrays()
to specify what kind of primitive to render.
Constant name
|
Value
|
Description
|
POINTS
|
0x0000
|
Passed to drawElements or drawArrays to draw single points.
|
LINES
|
0x0001
|
Passed to drawElements or drawArrays to draw lines. Each vertex connects to the one after it.
|
LINE_LOOP
|
0x0002
|
Passed to drawElements or drawArrays to draw lines. Each set of two vertices is treated as a separate line segment.
|
LINE_STRIP
|
0x0003
|
Passed to drawElements or drawArrays to draw a connected group of line segments from the first vertex to the last.
|
TRIANGLES
|
0x0004
|
Passed to drawElements or drawArrays to draw triangles. Each set of three vertices creates a separate triangle.
|
TRIANGLE_STRIP
|
0x0005
|
Passed to drawElements or drawArrays to draw a connected group of triangles.
|
TRIANGLE_FAN
|
0x0006
|
Passed to drawElements or drawArrays to draw a connected group of triangles. Each vertex connects to the previous and the first vertex in the fan.
|
Blending modes
Constants passed to WebGLRenderingContext.blendFunc()
or WebGLRenderingContext.blendFuncSeparate()
to specify the blending mode (for both, RBG and alpha, or separately).
Constant name
|
Value
|
Description
|
ZERO
|
0
|
Passed to blendFunc or blendFuncSeparate to turn off a component.
|
ONE
|
1
|
Passed to blendFunc or blendFuncSeparate to turn on a component.
|
SRC_COLOR
|
0x0300
|
Passed to blendFunc or blendFuncSeparate to multiply a component by the source elements color.
|
ONE_MINUS_SRC_COLOR
|
0x0301
|
Passed to blendFunc or blendFuncSeparate to multiply a component by one minus the source elements color.
|
SRC_ALPHA
|
0x0302
|
Passed to blendFunc or blendFuncSeparate to multiply a component by the source's alpha.
|
ONE_MINUS_SRC_ALPHA
|
0x0303
|
Passed to blendFunc or blendFuncSeparate to multiply a component by one minus the source's alpha.
|
DST_ALPHA
|
0x0304
|
Passed to blendFunc or blendFuncSeparate to multiply a component by the destination's alpha.
|
ONE_MINUS_DST_ALPHA
|
0x0305
|
Passed to blendFunc or blendFuncSeparate to multiply a component by one minus the destination's alpha.
|
DST_COLOR
|
0x0306
|
Passed to blendFunc or blendFuncSeparate to multiply a component by the destination's color.
|
ONE_MINUS_DST_COLOR
|
0x0307
|
Passed to blendFunc or blendFuncSeparate to multiply a component by one minus the destination's color.
|
SRC_ALPHA_SATURATE
|
0x0308
|
Passed to blendFunc or blendFuncSeparate to multiply a component by the minimum of source's alpha or one minus the destination's alpha.
|
CONSTANT_COLOR
|
0x8001
|
Passed to blendFunc or blendFuncSeparate to specify a constant color blend function.
|
ONE_MINUS_CONSTANT_COLOR
|
0x8002
|
Passed to blendFunc or blendFuncSeparate to specify one minus a constant color blend function.
|
CONSTANT_ALPHA
|
0x8003
|
Passed to blendFunc or blendFuncSeparate to specify a constant alpha blend function.
|
ONE_MINUS_CONSTANT_ALPHA
|
0x8004
|
Passed to blendFunc or blendFuncSeparate to specify one minus a constant alpha blend function.
|
Blending equations
Constants passed to WebGLRenderingContext.blendEquation()
or WebGLRenderingContext.blendEquationSeparate()
to control how the blending is calculated (for both, RBG and alpha, or separately).
Constant name
|
Value
|
Description
|
FUNC_ADD
|
0x8006
|
Passed to blendEquation or blendEquationSeparate to set an addition blend function.
|
FUNC_SUBTRACT
|
0x800A
|
Passed to blendEquation or blendEquationSeparate to specify a subtraction blend function (source - destination).
|
FUNC_REVERSE_SUBTRACT
|
0x800B
|
Passed to blendEquation or blendEquationSeparate to specify a reverse subtraction blend function (destination - source).
|
Getting GL parameter information
Constants passed to WebGLRenderingContext.getParameter()
to specify what information to return.
Constant name
|
Value
|
Description
|
BLEND_EQUATION
|
0x8009
|
Passed to getParameter to get the current RGB blend function.
|
BLEND_EQUATION_RGB
|
0x8009
|
Passed to getParameter to get the current RGB blend function. Same as BLEND_EQUATION
|
BLEND_EQUATION_ALPHA
|
0x883D
|
Passed to getParameter to get the current alpha blend function. Same as BLEND_EQUATION
|
BLEND_DST_RGB
|
0x80C8
|
Passed to getParameter to get the current destination RGB blend function.
|
BLEND_SRC_RGB
|
0x80C9
|
Passed to getParameter to get the current destination RGB blend function.
|
BLEND_DST_ALPHA
|
0x80CA
|
Passed to getParameter to get the current destination alpha blend function.
|
BLEND_SRC_ALPHA
|
0x80CB
|
Passed to getParameter to get the current source alpha blend function.
|
BLEND_COLOR
|
0x8005
|
Passed to getParameter to return a the current blend color.
|
ARRAY_BUFFER_BINDING
|
0x8894
|
Passed to getParameter to get the array buffer binding.
|
ELEMENT_ARRAY_BUFFER_BINDING
|
0x8895
|
Passed to getParameter to get the current element array buffer.
|
LINE_WIDTH
|
0x0B21
|
Passed to getParameter to get the current lineWidth (set by the lineWidth method).
|
ALIASED_POINT_SIZE_RANGE
|
0x846D
|
Passed to getParameter to get the current size of a point drawn with gl.POINTS
|
ALIASED_LINE_WIDTH_RANGE
|
0x846E
|
Passed to getParameter to get the range of available widths for a line. Returns a length-2 array with the lo value at 0, and hight at 1.
|
CULL_FACE_MODE
|
0x0B45
|
Passed to getParameter to get the current value of cullFace . Should return FRONT , BACK , or FRONT_AND_BACK
|
FRONT_FACE
|
0x0B46
|
Passed to getParameter to determine the current value of frontFace . Should return CW or CCW .
|
DEPTH_RANGE
|
0x0B70
|
Passed to getParameter to return a length-2 array of floats giving the current depth range.
|
DEPTH_WRITEMASK
|
0x0B72
|
Passed to getParameter to determine if the depth write mask is enabled.
|
DEPTH_CLEAR_VALUE
|
0x0B73
|
Passed to getParameter to determine the current depth clear value.
|
DEPTH_FUNC
|
0x0B74
|
Passed to getParameter to get the current depth function. Returns NEVER , ALWAYS , LESS , EQUAL , LEQUAL , GREATER , GEQUAL , or NOTEQUAL .
|
STENCIL_CLEAR_VALUE
|
0x0B91
|
Passed to getParameter to get the value the stencil will be cleared to.
|
STENCIL_FUNC
|
0x0B92
|
Passed to getParameter to get the current stencil function. Returns NEVER , ALWAYS , LESS , EQUAL , LEQUAL , GREATER , GEQUAL , or NOTEQUAL .
|
STENCIL_FAIL
|
0x0B94
|
Passed to getParameter to get the current stencil fail function. Should return KEEP , REPLACE , INCR , DECR , INVERT , INCR_WRAP , or DECR_WRAP .
|
STENCIL_PASS_DEPTH_FAIL
|
0x0B95
|
Passed to getParameter to get the current stencil fail function should the depth buffer test fail. Should return KEEP , REPLACE , INCR , DECR , INVERT , INCR_WRAP , or DECR_WRAP .
|
STENCIL_PASS_DEPTH_PASS
|
0x0B96
|
Passed to getParameter to get the current stencil fail function should the depth buffer test pass. Should return KEEP, REPLACE, INCR, DECR, INVERT, INCR_WRAP, or DECR_WRAP.
|
STENCIL_REF
|
0x0B97
|
Passed to getParameter to get the reference value used for stencil tests.
|
STENCIL_VALUE_MASK
|
0x0B93
|
|
STENCIL_WRITEMASK
|
0x0B98
|
|
STENCIL_BACK_FUNC
|
0x8800
|
|
STENCIL_BACK_FAIL
|
0x8801
|
|
STENCIL_BACK_PASS_DEPTH_FAIL
|
0x8802
|
|
STENCIL_BACK_PASS_DEPTH_PASS
|
0x8803
|
|
STENCIL_BACK_REF
|
0x8CA3
|
|
STENCIL_BACK_VALUE_MASK
|
0x8CA4
|
|
STENCIL_BACK_WRITEMASK
|
0x8CA5
|
|
VIEWPORT
|
0x0BA2
|
Returns an Int32Array with four elements for the current viewport dimensions.
|
SCISSOR_BOX
|
0x0C10
|
Returns an Int32Array with four elements for the current scissor box dimensions.
|
COLOR_CLEAR_VALUE
|
0x0C22
|
|
COLOR_WRITEMASK
|
0x0C23
|
|
UNPACK_ALIGNMENT
|
0x0CF5
|
|
PACK_ALIGNMENT
|
0x0D05
|
|
MAX_TEXTURE_SIZE
|
0x0D33
|
|
MAX_VIEWPORT_DIMS
|
0x0D3A
|
|
SUBPIXEL_BITS
|
0x0D50
|
|
RED_BITS
|
0x0D52
|
|
GREEN_BITS
|
0x0D53
|
|
BLUE_BITS
|
0x0D54
|
|
ALPHA_BITS
|
0x0D55
|
|
DEPTH_BITS
|
0x0D56
|
|
STENCIL_BITS
|
0x0D57
|
|
POLYGON_OFFSET_UNITS
|
0x2A00
|
|
POLYGON_OFFSET_FACTOR
|
0x8038
|
|
TEXTURE_BINDING_2D
|
0x8069
|
|
SAMPLE_BUFFERS
|
0x80A8
|
|
SAMPLES
|
0x80A9
|
|
SAMPLE_COVERAGE_VALUE
|
0x80AA
|
|
SAMPLE_COVERAGE_INVERT
|
0x80AB
|
|
COMPRESSED_TEXTURE_FORMATS
|
0x86A3
|
|
VENDOR
|
0x1F00
|
|
RENDERER
|
0x1F01
|
|
VERSION
|
0x1F02
|
|
IMPLEMENTATION_COLOR_READ_TYPE
|
0x8B9A
|
|
IMPLEMENTATION_COLOR_READ_FORMAT
|
0x8B9B
|
|
BROWSER_DEFAULT_WEBGL
|
0x9244
|
|
Buffers
Constants passed to WebGLRenderingContext.bufferData()
, WebGLRenderingContext.bufferSubData()
, WebGLRenderingContext.bindBuffer()
, or WebGLRenderingContext.getBufferParameter()
.
Constant name
|
Value
|
Description
|
STATIC_DRAW
|
0x88E4
|
Passed to bufferData as a hint about whether the contents of the buffer are likely to be used often and not change often.
|
STREAM_DRAW
|
0x88E0
|
Passed to bufferData as a hint about whether the contents of the buffer are likely to not be used often.
|
DYNAMIC_DRAW
|
0x88E8
|
Passed to bufferData as a hint about whether the contents of the buffer are likely to be used often and change often.
|
ARRAY_BUFFER
|
0x8892
|
Passed to bindBuffer or bufferData to specify the type of buffer being used.
|
ELEMENT_ARRAY_BUFFER
|
0x8893
|
Passed to bindBuffer or bufferData to specify the type of buffer being used.
|
BUFFER_SIZE
|
0x8764
|
Passed to getBufferParameter to get a buffer's size.
|
BUFFER_USAGE
|
0x8765
|
Passed to getBufferParameter to get the hint for the buffer passed in when it was created.
|
Vertex attributes
Constants passed to WebGLRenderingContext.getVertexAttrib()
.
Constant name
|
Value
|
Description
|
CURRENT_VERTEX_ATTRIB
|
0x8626
|
Passed to getVertexAttrib to read back the current vertex attribute.
|
VERTEX_ATTRIB_ARRAY_ENABLED
|
0x8622
|
|
VERTEX_ATTRIB_ARRAY_SIZE
|
0x8623
|
|
VERTEX_ATTRIB_ARRAY_STRIDE
|
0x8624
|
|
VERTEX_ATTRIB_ARRAY_TYPE
|
0x8625
|
|
VERTEX_ATTRIB_ARRAY_NORMALIZED
|
0x886A
|
|
VERTEX_ATTRIB_ARRAY_POINTER
|
0x8645
|
|
VERTEX_ATTRIB_ARRAY_BUFFER_BINDING
|
0x889F
|
|
Culling
Constants passed to WebGLRenderingContext.cullFace()
.
Constant name
|
Value
|
Description
|
CULL_FACE
|
0x0B44
|
Passed to enable /disable to turn on/off culling. Can also be used with getParameter to find the current culling method.
|
FRONT
|
0x0404
|
Passed to cullFace to specify that only front faces should be culled.
|
BACK
|
0x0405
|
Passed to cullFace to specify that only back faces should be culled.
|
FRONT_AND_BACK
|
0x0408
|
Passed to cullFace to specify that front and back faces should be culled.
|
Enabling and disabling
Constants passed to WebGLRenderingContext.enable()
or WebGLRenderingContext.disable()
.
Constant name
|
Value
|
Description
|
BLEND
|
0x0BE2
|
Passed to enable /disable to turn on/off blending. Can also be used with getParameter to find the current blending method.
|
DEPTH_TEST
|
0x0B71
|
Passed to enable /disable to turn on/off the depth test. Can also be used with getParameter to query the depth test.
|
DITHER
|
0x0BD0
|
Passed to enable /disable to turn on/off dithering. Can also be used with getParameter to find the current dithering method.
|
POLYGON_OFFSET_FILL
|
0x8037
|
Passed to enable /disable to turn on/off the polygon offset. Useful for rendering hidden-line images, decals, and or solids with highlighted edges. Can also be used with getParameter to query the scissor test.
|
SAMPLE_ALPHA_TO_COVERAGE
|
0x809E
|
Passed to enable /disable to turn on/off the alpha to coverage. Used in multi-sampling alpha channels.
|
SAMPLE_COVERAGE
|
0x80A0
|
Passed to enable /disable to turn on/off the sample coverage. Used in multi-sampling.
|
SCISSOR_TEST
|
0x0C11
|
Passed to enable /disable to turn on/off the scissor test. Can also be used with getParameter to query the scissor test.
|
STENCIL_TEST
|
0x0B90
|
Passed to enable /disable to turn on/off the stencil test. Can also be used with getParameter to query the stencil test.
|
|
|
|
Errors
Constants returned from WebGLRenderingContext.getError()
.
Constant name
|
Value
|
Description
|
NO_ERROR
|
0
|
Returned from getError .
|
INVALID_ENUM
|
0x0500
|
Returned from getError .
|
INVALID_VALUE
|
0x0501
|
Returned from getError .
|
INVALID_OPERATION
|
0x0502
|
Returned from getError .
|
OUT_OF_MEMORY
|
0x0505
|
Returned from getError .
|
CONTEXT_LOST_WEBGL
|
0x9242
|
Returned from getError .
|
Front face directions
Constants passed to WebGLRenderingContext.frontFace()
.
Constant name
|
Value
|
Description
|
CW
|
0x0900
|
Passed to frontFace to specify the front face of a polygon is drawn in the clockwise direction
|
CCW
|
0x0901
|
Passed to frontFace to specify the front face of a polygon is drawn in the counter clockwise direction
|
Hints
Constants passed to WebGLRenderingContext.hint()
Constant name
|
Value
|
Description
|
DONT_CARE
|
0x1100
|
There is no preference for this behavior.
|
FASTEST
|
0x1101
|
The most efficient behavior should be used.
|
NICEST
|
0x1102
|
The most correct or the highest quality option should be used.
|
GENERATE_MIPMAP_HINT
|
0x8192
|
Hint for the quality of filtering when generating mipmap images with WebGLRenderingContext.generateMipmap() .
|
Data types
Constant name
|
Value
|
Description
|
BYTE
|
0x1400
|
|
UNSIGNED_BYTE
|
0x1401
|
|
SHORT
|
0x1402
|
|
UNSIGNED_SHORT
|
0x1403
|
|
INT
|
0x1404
|
|
UNSIGNED_INT
|
0x1405
|
|
FLOAT
|
0x1406
|
|
Pixel formats
Constant name
|
Value
|
Description
|
DEPTH_COMPONENT
|
0x1902
|
|
ALPHA
|
0x1906
|
|
RGB
|
0x1907
|
|
RGBA
|
0x1908
|
|
LUMINANCE
|
0x1909
|
|
LUMINANCE_ALPHA
|
0x190A
|
|
Pixel types
Constant name
|
Value
|
Description
|
UNSIGNED_BYTE
|
0x1401
|
|
UNSIGNED_SHORT_4_4_4_4
|
0x8033
|
|
UNSIGNED_SHORT_5_5_5_1
|
0x8034
|
|
UNSIGNED_SHORT_5_6_5
|
0x8363
|
|
Shaders
Constants passed to WebGLRenderingContext.createShader()
or WebGLRenderingContext.getShaderParameter()
Constant name
|
Value
|
Description
|
FRAGMENT_SHADER
|
0x8B30
|
Passed to createShader to define a fragment shader.
|
VERTEX_SHADER
|
0x8B31
|
Passed to createShader to define a vertex shader
|
COMPILE_STATUS
|
0x8B81
|
Passed to getShaderParamter to get the status of the compilation. Returns false if the shader was not compiled. You can then query getShaderInfoLog to find the exact error
|
DELETE_STATUS
|
0x8B80
|
Passed to getShaderParamter to determine if a shader was deleted via deleteShader . Returns true if it was, false otherwise.
|
LINK_STATUS
|
0x8B82
|
Passed to getProgramParameter after calling linkProgram to determine if a program was linked correctly. Returns false if there were errors. Use getProgramInfoLog to find the exact error.
|
VALIDATE_STATUS
|
0x8B83
|
Passed to getProgramParameter after calling validateProgram to determine if it is valid. Returns false if errors were found.
|
ATTACHED_SHADERS
|
0x8B85
|
Passed to getProgramParameter after calling attachShader to determine if the shader was attached correctly. Returns false if errors occurred.
|
ACTIVE_ATTRIBUTES
|
0x8B89
|
Passed to getProgramParameter to get the number of attributes active in a program.
|
ACTIVE_UNIFORMS
|
0x8B86
|
Passed to getProgramParamter to get the number of uniforms active in a program.
|
MAX_VERTEX_ATTRIBS
|
0x8869
|
The maximum number of entries possible in the vertex attribute list.
|
MAX_VERTEX_UNIFORM_VECTORS
|
0x8DFB
|
|
MAX_VARYING_VECTORS
|
0x8DFC
|
|
MAX_COMBINED_TEXTURE_IMAGE_UNITS
|
0x8B4D
|
|
MAX_VERTEX_TEXTURE_IMAGE_UNITS
|
0x8B4C
|
|
MAX_TEXTURE_IMAGE_UNITS
|
0x8872
|
Implementation dependent number of maximum texture units. At least 8.
|
MAX_FRAGMENT_UNIFORM_VECTORS
|
0x8DFD
|
|
SHADER_TYPE
|
0x8B4F
|
|
SHADING_LANGUAGE_VERSION
|
0x8B8C
|
|
CURRENT_PROGRAM
|
0x8B8D
|
|
Depth or stencil tests
Constants passed to WebGLRenderingContext.depthFunc()
or WebGLRenderingContext.stencilFunc()
.
Constant name
|
Value
|
Description
|
NEVER
|
0x0200
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will never pass. i.e. Nothing will be drawn.
|
LESS
|
0x0201
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is less than the stored value.
|
EQUAL
|
0x0202
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is equals to the stored value.
|
LEQUAL
|
0x0203
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is less than or equal to the stored value.
|
GREATER
|
0x0204
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is greater than the stored value.
|
NOTEQUAL
|
0x0205
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is not equal to the stored value.
|
GEQUAL
|
0x0206
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will pass if the new depth value is greater than or equal to the stored value.
|
ALWAYS
|
0x0207
|
Passed to depthFunction or stencilFunction to specify depth or stencil tests will always pass. i.e. Pixels will be drawn in the order they are drawn.
|
Stencil actions
Constants passed to WebGLRenderingContext.stencilOp()
.
Constant name
|
Value
|
Description
|
KEEP
|
0x1E00
|
|
REPLACE
|
0x1E01
|
|
INCR
|
0x1E02
|
|
DECR
|
0x1E03
|
|
INVERT
|
0x150A
|
|
INCR_WRAP
|
0x8507
|
|
DECR_WRAP
|
0x8508
|
|
Textures
Constants passed to WebGLRenderingContext.texParameteri()
, WebGLRenderingContext.texParameterf()
, WebGLRenderingContext.bindTexture()
, WebGLRenderingContext.texImage2D()
, and others.
Constant name
|
Value
|
Description
|
NEAREST
|
0x2600
|
|
LINEAR
|
0x2601
|
|
NEAREST_MIPMAP_NEAREST
|
0x2700
|
|
LINEAR_MIPMAP_NEAREST
|
0x2701
|
|
NEAREST_MIPMAP_LINEAR
|
0x2702
|
|
LINEAR_MIPMAP_LINEAR
|
0x2703
|
|
TEXTURE_MAG_FILTER
|
0x2800
|
|
TEXTURE_MIN_FILTER
|
0x2801
|
|
TEXTURE_WRAP_S
|
0x2802
|
|
TEXTURE_WRAP_T
|
0x2803
|
|
TEXTURE_2D
|
0x0DE1
|
|
TEXTURE
|
0x1702
|
|
TEXTURE_CUBE_MAP
|
0x8513
|
|
TEXTURE_BINDING_CUBE_MAP
|
0x8514
|
|
TEXTURE_CUBE_MAP_POSITIVE_X
|
0x8515
|
|
TEXTURE_CUBE_MAP_NEGATIVE_X
|
0x8516
|
|
TEXTURE_CUBE_MAP_POSITIVE_Y
|
0x8517
|
|
TEXTURE_CUBE_MAP_NEGATIVE_Y
|
0x8518
|
|
TEXTURE_CUBE_MAP_POSITIVE_Z
|
0x8519
|
|
TEXTURE_CUBE_MAP_NEGATIVE_Z
|
0x851A
|
|
MAX_CUBE_MAP_TEXTURE_SIZE
|
0x851C
|
|
TEXTURE0 - 31
|
0x84C0 - 0x84DF
|
A texture unit.
|
ACTIVE_TEXTURE
|
0x84E0
|
The current active texture unit.
|
REPEAT
|
0x2901
|
|
CLAMP_TO_EDGE
|
0x812F
|
|
MIRRORED_REPEAT
|
0x8370
|
|
Uniform types
Constant name
|
Value
|
Description
|
FLOAT_VEC2
|
0x8B50
|
|
FLOAT_VEC3
|
0x8B51
|
|
FLOAT_VEC4
|
0x8B52
|
|
INT_VEC2
|
0x8B53
|
|
INT_VEC3
|
0x8B54
|
|
INT_VEC4
|
0x8B55
|
|
BOOL
|
0x8B56
|
|
BOOL_VEC2
|
0x8B57
|
|
BOOL_VEC3
|
0x8B58
|
|
BOOL_VEC4
|
0x8B59
|
|
FLOAT_MAT2
|
0x8B5A
|
|
FLOAT_MAT3
|
0x8B5B
|
|
FLOAT_MAT4
|
0x8B5C
|
|
SAMPLER_2D
|
0x8B5E
|
|
SAMPLER_CUBE
|
0x8B60
|
|
Shader precision-specified types
Constant name
|
Value
|
Description
|
LOW_FLOAT
|
0x8DF0
|
|
MEDIUM_FLOAT
|
0x8DF1
|
|
HIGH_FLOAT
|
0x8DF2
|
|
LOW_INT
|
0x8DF3
|
|
MEDIUM_INT
|
0x8DF4
|
|
HIGH_INT
|
0x8DF5
|
|
Framebuffers and renderbuffers
Constant name
|
Value
|
Description
|
FRAMEBUFFER
|
0x8D40
|
|
RENDERBUFFER
|
0x8D41
|
|
RGBA4
|
0x8056
|
|
RGB5_A1
|
0x8057
|
|
RGB565
|
0x8D62
|
|
DEPTH_COMPONENT16
|
0x81A5
|
|
STENCIL_INDEX8
|
0x8D48
|
|
DEPTH_STENCIL
|
0x84F9
|
|
RENDERBUFFER_WIDTH
|
0x8D42
|
|
RENDERBUFFER_HEIGHT
|
0x8D43
|
|
RENDERBUFFER_INTERNAL_FORMAT
|
0x8D44
|
|
RENDERBUFFER_RED_SIZE
|
0x8D50
|
|
RENDERBUFFER_GREEN_SIZE
|
0x8D51
|
|
RENDERBUFFER_BLUE_SIZE
|
0x8D52
|
|
RENDERBUFFER_ALPHA_SIZE
|
0x8D53
|
|
RENDERBUFFER_DEPTH_SIZE
|
0x8D54
|
|
RENDERBUFFER_STENCIL_SIZE
|
0x8D55
|
|
FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE
|
0x8CD0
|
|
FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
|
0x8CD1
|
|
FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL
|
0x8CD2
|
|
FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE
|
0x8CD3
|
|
COLOR_ATTACHMENT0
|
0x8CE0
|
|
DEPTH_ATTACHMENT
|
0x8D00
|
|
STENCIL_ATTACHMENT
|
0x8D20
|
|
DEPTH_STENCIL_ATTACHMENT
|
0x821A
|
|
NONE
|
0
|
|
FRAMEBUFFER_COMPLETE
|
0x8CD5
|
|
FRAMEBUFFER_INCOMPLETE_ATTACHMENT
|
0x8CD6
|
|
FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT
|
0x8CD7
|
|
FRAMEBUFFER_INCOMPLETE_DIMENSIONS
|
0x8CD9
|
|
FRAMEBUFFER_UNSUPPORTED
|
0x8CDD
|
|
FRAMEBUFFER_BINDING
|
0x8CA6
|
|
RENDERBUFFER_BINDING
|
0x8CA7
|
|
MAX_RENDERBUFFER_SIZE
|
0x84E8
|
|
INVALID_FRAMEBUFFER_OPERATION
|
0x0506
|
|
Pixel storage modes
Constants passed to WebGLRenderingContext.pixelStorei()
.
Constant name
|
Value
|
Description
|
UNPACK_FLIP_Y_WEBGL
|
0x9240
|
|
UNPACK_PREMULTIPLY_ALPHA_WEBGL
|
0x9241
|
|
UNPACK_COLORSPACE_CONVERSION_WEBGL
|
0x9243
|
|
Additional constants defined WebGL 2
These constants are defined on the WebGL2RenderingContext
interface. All WebGL 1 constants are also available in a WebGL 2 context.
Getting GL parameter information
Constants passed to WebGLRenderingContext.getParameter()
to specify what information to return.
Constant name
|
Value
|
Description
|
READ_BUFFER
|
0x0C02
|
|
UNPACK_ROW_LENGTH
|
0x0CF2
|
|
UNPACK_SKIP_ROWS
|
0x0CF3
|
|
UNPACK_SKIP_PIXELS
|
0x0CF4
|
|
PACK_ROW_LENGTH
|
0x0D02
|
|
PACK_SKIP_ROWS
|
0x0D03
|
|
PACK_SKIP_PIXELS
|
0x0D04
|
|
TEXTURE_BINDING_3D
|
0x806A
|
|
UNPACK_SKIP_IMAGES
|
0x806D
|
|
UNPACK_IMAGE_HEIGHT
|
0x806E
|
|
MAX_3D_TEXTURE_SIZE
|
0x8073
|
|
MAX_ELEMENTS_VERTICES
|
0x80E8
|
|
MAX_ELEMENTS_INDICES
|
0x80E9
|
|
MAX_TEXTURE_LOD_BIAS
|
0x84FD
|
|
MAX_FRAGMENT_UNIFORM_COMPONENTS
|
0x8B49
|
|
MAX_VERTEX_UNIFORM_COMPONENTS
|
0x8B4A
|
|
MAX_ARRAY_TEXTURE_LAYERS
|
0x88FF
|
|
MIN_PROGRAM_TEXEL_OFFSET
|
0x8904
|
|
MAX_PROGRAM_TEXEL_OFFSET
|
0x8905
|
|
MAX_VARYING_COMPONENTS
|
0x8B4B
|
|
FRAGMENT_SHADER_DERIVATIVE_HINT
|
0x8B8B
|
|
RASTERIZER_DISCARD
|
0x8C89
|
|
VERTEX_ARRAY_BINDING
|
0x85B5
|
|
MAX_VERTEX_OUTPUT_COMPONENTS
|
0x9122
|
|
MAX_FRAGMENT_INPUT_COMPONENTS
|
0x9125
|
|
MAX_SERVER_WAIT_TIMEOUT
|
0x9111
|
|
MAX_ELEMENT_INDEX
|
0x8D6B
|
|
Textures
Constants passed to WebGLRenderingContext.texParameteri()
, WebGLRenderingContext.texParameterf()
, WebGLRenderingContext.bindTexture()
, WebGLRenderingContext.texImage2D()
, and others.
Constant name
|
Value
|
Description
|
RED
|
0x1903
|
|
RGB8
|
0x8051
|
|
RGBA8
|
0x8058
|
|
RGB10_A2
|
0x8059
|
|
TEXTURE_3D
|
0x806F
|
|
TEXTURE_WRAP_R
|
0x8072
|
|
TEXTURE_MIN_LOD
|
0x813A
|
|
TEXTURE_MAX_LOD
|
0x813B
|
|
TEXTURE_BASE_LEVEL
|
0x813C
|
|
TEXTURE_MAX_LEVEL
|
0x813D
|
|
TEXTURE_COMPARE_MODE
|
0x884C
|
|
TEXTURE_COMPARE_FUNC
|
0x884D
|
|
SRGB
|
0x8C40
|
|
SRGB8
|
0x8C41
|
|
SRGB8_ALPHA8
|
0x8C43
|
|
COMPARE_REF_TO_TEXTURE
|
0x884E
|
|
RGBA32F
|
0x8814
|
|
RGB32F
|
0x8815
|
|
RGBA16F
|
0x881A
|
|
RGB16F
|
0x881B
|
|
TEXTURE_2D_ARRAY
|
0x8C1A
|
|
TEXTURE_BINDING_2D_ARRAY
|
0x8C1D
|
|
R11F_G11F_B10F
|
0x8C3A
|
|
RGB9_E5
|
0x8C3D
|
|
RGBA32UI
|
0x8D70
|
|
RGB32UI
|
0x8D71
|
|
RGBA16UI
|
0x8D76
|
|
RGB16UI
|
0x8D77
|
|
RGBA8UI
|
0x8D7C
|
|
RGB8UI
|
0x8D7D
|
|
RGBA32I
|
0x8D82
|
|
RGB32I
|
0x8D83
|
|
RGBA16I
|
0x8D88
|
|
RGB16I
|
0x8D89
|
|
RGBA8I
|
0x8D8E
|
|
RGB8I
|
0x8D8F
|
|
RED_INTEGER
|
0x8D94
|
|
RGB_INTEGER
|
0x8D98
|
|
RGBA_INTEGER
|
0x8D99
|
|
R8
|
0x8229
|
|
RG8
|
0x822B
|
|
R16F
|
0x822D
|
|
R32F
|
0x822E
|
|
RG16F
|
0x822F
|
|
RG32F
|
0x8230
|
|
R8I
|
0x8231
|
|
R8UI
|
0x8232
|
|
R16I
|
0x8233
|
|
R16UI
|
0x8234
|
|
R32I
|
0x8235
|
|
R32UI
|
0x8236
|
|
RG8I
|
0x8237
|
|
RG8UI
|
0x8238
|
|
RG16I
|
0x8239
|
|
RG16UI
|
0x823A
|
|
RG32I
|
0x823B
|
|
RG32UI
|
0x823C
|
|
R8_SNORM
|
0x8F94
|
|
RG8_SNORM
|
0x8F95
|
|
RGB8_SNORM
|
0x8F96
|
|
RGBA8_SNORM
|
0x8F97
|
|
RGB10_A2UI
|
0x906F
|
|
TEXTURE_IMMUTABLE_FORMAT
|
0x912F
|
|
TEXTURE_IMMUTABLE_LEVELS
|
0x82DF
|
|
Pixel types
Constant name
|
Value
|
Description
|
UNSIGNED_INT_2_10_10_10_REV
|
0x8368
|
|
UNSIGNED_INT_10F_11F_11F_REV
|
0x8C3B
|
|
UNSIGNED_INT_5_9_9_9_REV
|
0x8C3E
|
|
FLOAT_32_UNSIGNED_INT_24_8_REV
|
0x8DAD
|
|
UNSIGNED_INT_24_8
|
0x84FA
|
|
HALF_FLOAT
|
0x140B
|
|
RG
|
0x8227
|
|
RG_INTEGER
|
0x8228
|
|
INT_2_10_10_10_REV
|
0x8D9F
|
|
Queries
Constant name
|
Value
|
Description
|
CURRENT_QUERY
|
0x8865
|
|
QUERY_RESULT
|
0x8866
|
|
QUERY_RESULT_AVAILABLE
|
0x8867
|
|
ANY_SAMPLES_PASSED
|
0x8C2F
|
|
ANY_SAMPLES_PASSED_CONSERVATIVE
|
0x8D6A
|
|
Draw buffers
Constant name
|
Value
|
Description
|
MAX_DRAW_BUFFERS
|
0x8824
|
|
DRAW_BUFFER0
|
0x8825
|
|
DRAW_BUFFER1
|
0x8826
|
|
DRAW_BUFFER2
|
0x8827
|
|
DRAW_BUFFER3
|
0x8828
|
|
DRAW_BUFFER4
|
0x8829
|
|
DRAW_BUFFER5
|
0x882A
|
|
DRAW_BUFFER6
|
0x882B
|
|
DRAW_BUFFER7
|
0x882C
|
|
DRAW_BUFFER8
|
0x882D
|
|
DRAW_BUFFER9
|
0x882E
|
|
DRAW_BUFFER10
|
0x882F
|
|
DRAW_BUFFER11
|
0x8830
|
|
DRAW_BUFFER12
|
0x8831
|
|
DRAW_BUFFER13
|
0x8832
|
|
DRAW_BUFFER14
|
0x8833
|
|
DRAW_BUFFER15
|
0x8834
|
|
MAX_COLOR_ATTACHMENTS
|
0x8CDF
|
|
COLOR_ATTACHMENT1
|
0x8CE1
|
|
COLOR_ATTACHMENT2
|
0x8CE2
|
|
COLOR_ATTACHMENT3
|
0x8CE3
|
|
COLOR_ATTACHMENT4
|
0x8CE4
|
|
COLOR_ATTACHMENT5
|
0x8CE5
|
|
COLOR_ATTACHMENT6
|
0x8CE6
|
|
COLOR_ATTACHMENT7
|
0x8CE7
|
|
COLOR_ATTACHMENT8
|
0x8CE8
|
|
COLOR_ATTACHMENT9
|
0x8CE9
|
|
COLOR_ATTACHMENT10
|
0x8CEA
|
|
COLOR_ATTACHMENT11
|
0x8CEB
|
|
COLOR_ATTACHMENT12
|
0x8CEC
|
|
COLOR_ATTACHMENT13
|
0x8CED
|
|
COLOR_ATTACHMENT14
|
0x8CEE
|
|
COLOR_ATTACHMENT15
|
0x8CEF
|
|
Samplers
Constant name
|
Value
|
Description
|
SAMPLER_3D
|
0x8B5F
|
|
SAMPLER_2D_SHADOW
|
0x8B62
|
|
SAMPLER_2D_ARRAY
|
0x8DC1
|
|
SAMPLER_2D_ARRAY_SHADOW
|
0x8DC4
|
|
SAMPLER_CUBE_SHADOW
|
0x8DC5
|
|
INT_SAMPLER_2D
|
0x8DCA
|
|
INT_SAMPLER_3D
|
0x8DCB
|
|
INT_SAMPLER_CUBE
|
0x8DCC
|
|
INT_SAMPLER_2D_ARRAY
|
0x8DCF
|
|
UNSIGNED_INT_SAMPLER_2D
|
0x8DD2
|
|
UNSIGNED_INT_SAMPLER_3D
|
0x8DD3
|
|
UNSIGNED_INT_SAMPLER_CUBE
|
0x8DD4
|
|
UNSIGNED_INT_SAMPLER_2D_ARRAY
|
0x8DD7
|
|
MAX_SAMPLES
|
0x8D57
|
|
SAMPLER_BINDING
|
0x8919
|
|
Buffers
Constant name
|
Value
|
Description
|
PIXEL_PACK_BUFFER
|
0x88EB
|
|
PIXEL_UNPACK_BUFFER
|
0x88EC
|
|
PIXEL_PACK_BUFFER_BINDING
|
0x88ED
|
|
PIXEL_UNPACK_BUFFER_BINDING
|
0x88EF
|
|
COPY_READ_BUFFER
|
0x8F36
|
|
COPY_WRITE_BUFFER
|
0x8F37
|
|
COPY_READ_BUFFER_BINDING
|
0x8F36
|
|
COPY_WRITE_BUFFER_BINDING
|
0x8F37
|
|
Data types
Constant name
|
Value
|
Description
|
FLOAT_MAT2x3
|
0x8B65
|
|
FLOAT_MAT2x4
|
0x8B66
|
|
FLOAT_MAT3x2
|
0x8B67
|
|
FLOAT_MAT3x4
|
0x8B68
|
|
FLOAT_MAT4x2
|
0x8B69
|
|
FLOAT_MAT4x3
|
0x8B6A
|
|
UNSIGNED_INT_VEC2
|
0x8DC6
|
|
UNSIGNED_INT_VEC3
|
0x8DC7
|
|
UNSIGNED_INT_VEC4
|
0x8DC8
|
|
UNSIGNED_NORMALIZED
|
0x8C17
|
|
SIGNED_NORMALIZED
|
0x8F9C
|
|
Vertex attributes
Constant name
|
Value
|
Description
|
VERTEX_ATTRIB_ARRAY_INTEGER
|
0x88FD
|
|
VERTEX_ATTRIB_ARRAY_DIVISOR
|
0x88FE
|
|
Transform feedback
Constant name
|
Value
|
Description
|
TRANSFORM_FEEDBACK_BUFFER_MODE
|
0x8C7F
|
|
MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS
|
0x8C80
|
|
TRANSFORM_FEEDBACK_VARYINGS
|
0x8C83
|
|
TRANSFORM_FEEDBACK_BUFFER_START
|
0x8C84
|
|
TRANSFORM_FEEDBACK_BUFFER_SIZE
|
0x8C85
|
|
TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN
|
0x8C88
|
|
MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS
|
0x8C8A
|
|
MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS
|
0x8C8B
|
|
INTERLEAVED_ATTRIBS
|
0x8C8C
|
|
SEPARATE_ATTRIBS
|
0x8C8D
|
|
TRANSFORM_FEEDBACK_BUFFER
|
0x8C8E
|
|
TRANSFORM_FEEDBACK_BUFFER_BINDING
|
0x8C8F
|
|
TRANSFORM_FEEDBACK
|
0x8E22
|
|
TRANSFORM_FEEDBACK_PAUSED
|
0x8E23
|
|
TRANSFORM_FEEDBACK_ACTIVE
|
0x8E24
|
|
TRANSFORM_FEEDBACK_BINDING
|
0x8E25
|
|
Framebuffers and renderbuffers
Constant name
|
Value
|
Description
|
FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
|
0x8210
|
|
FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
|
0x8211
|
|
FRAMEBUFFER_ATTACHMENT_RED_SIZE
|
0x8212
|
|
FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
|
0x8213
|
|
FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
|
0x8214
|
|
FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
|
0x8215
|
|
FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
|
0x8216
|
|
FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
|
0x8217
|
|
FRAMEBUFFER_DEFAULT
|
0x8218
|
|
DEPTH_STENCIL_ATTACHMENT
|
0x821A
|
|
DEPTH_STENCIL
|
0x84F9
|
|
DEPTH24_STENCIL8
|
0x88F0
|
|
DRAW_FRAMEBUFFER_BINDING
|
0x8CA6
|
|
READ_FRAMEBUFFER
|
0x8CA8
|
|
DRAW_FRAMEBUFFER
|
0x8CA9
|
|
READ_FRAMEBUFFER_BINDING
|
0x8CAA
|
|
RENDERBUFFER_SAMPLES
|
0x8CAB
|
|
FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER
|
0x8CD4
|
|
FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
|
0x8D56
|
|
Uniforms
Constant name
|
Value
|
Description
|
UNIFORM_BUFFER
|
0x8A11
|
|
UNIFORM_BUFFER_BINDING
|
0x8A28
|
|
UNIFORM_BUFFER_START
|
0x8A29
|
|
UNIFORM_BUFFER_SIZE
|
0x8A2A
|
|
MAX_VERTEX_UNIFORM_BLOCKS
|
0x8A2B
|
|
MAX_FRAGMENT_UNIFORM_BLOCKS
|
0x8A2D
|
|
MAX_COMBINED_UNIFORM_BLOCKS
|
0x8A2E
|
|
MAX_UNIFORM_BUFFER_BINDINGS
|
0x8A2F
|
|
MAX_UNIFORM_BLOCK_SIZE
|
0x8A30
|
|
MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS
|
0x8A31
|
|
MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS
|
0x8A33
|
|
UNIFORM_BUFFER_OFFSET_ALIGNMENT
|
0x8A34
|
|
ACTIVE_UNIFORM_BLOCKS
|
0x8A36
|
|
UNIFORM_TYPE
|
0x8A37
|
|
UNIFORM_SIZE
|
0x8A38
|
|
UNIFORM_BLOCK_INDEX
|
0x8A3A
|
|
UNIFORM_OFFSET
|
0x8A3B
|
|
UNIFORM_ARRAY_STRIDE
|
0x8A3C
|
|
UNIFORM_MATRIX_STRIDE
|
0x8A3D
|
|
UNIFORM_IS_ROW_MAJOR
|
0x8A3E
|
|
UNIFORM_BLOCK_BINDING
|
0x8A3F
|
|
UNIFORM_BLOCK_DATA_SIZE
|
0x8A40
|
|
UNIFORM_BLOCK_ACTIVE_UNIFORMS
|
0x8A42
|
|
UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES
|
0x8A43
|
|
UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER
|
0x8A44
|
|
UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER
|
0x8A46
|
|
Sync objects
Constant name
|
Value
|
Description
|
OBJECT_TYPE
|
0x9112
|
|
SYNC_CONDITION
|
0x9113
|
|
SYNC_STATUS
|
0x9114
|
|
SYNC_FLAGS
|
0x9115
|
|
SYNC_FENCE
|
0x9116
|
|
SYNC_GPU_COMMANDS_COMPLETE
|
0x9117
|
|
UNSIGNALED
|
0x9118
|
|
SIGNALED
|
0x9119
|
|
ALREADY_SIGNALED
|
0x911A
|
|
TIMEOUT_EXPIRED
|
0x911B
|
|
CONDITION_SATISFIED
|
0x911C
|
|
WAIT_FAILED
|
0x911D
|
|
SYNC_FLUSH_COMMANDS_BIT
|
0x00000001
|
|
Miscellaneous constants
Constant name
|
Value
|
Description
|
COLOR
|
0x1800
|
|
DEPTH
|
0x1801
|
|
STENCIL
|
0x1802
|
|
MIN
|
0x8007
|
|
MAX
|
0x8008
|
|
DEPTH_COMPONENT24
|
0x81A6
|
|
STREAM_READ
|
0x88E1
|
|
STREAM_COPY
|
0x88E2
|
|
STATIC_READ
|
0x88E5
|
|
STATIC_COPY
|
0x88E6
|
|
DYNAMIC_READ
|
0x88E9
|
|
DYNAMIC_COPY
|
0x88EA
|
|
DEPTH_COMPONENT32F
|
0x8CAC
|
|
DEPTH32F_STENCIL8
|
0x8CAD
|
|
INVALID_INDEX
|
0xFFFFFFFF
|
|
TIMEOUT_IGNORED
|
-1
|
|
MAX_CLIENT_WAIT_TIMEOUT_WEBGL
|
0x9247
|
|
Constants defined in WebGL extensions
Constant name
|
Value
|
Description
|
VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE
|
0x88FE
|
Describes the frequency divisor used for instanced rendering.
|
Constant name
|
Value
|
Description
|
UNMASKED_VENDOR_WEBGL
|
0x9245
|
Passed to getParameter to get the vendor string of the graphics driver.
|
UNMASKED_RENDERER_WEBGL
|
0x9246
|
Passed to getParameter to get the renderer string of the graphics driver.
|
Constant name
|
Value
|
Description
|
MAX_TEXTURE_MAX_ANISOTROPY_EXT
|
0x84FF
|
Returns the maximum available anisotropy.
|
TEXTURE_MAX_ANISOTROPY_EXT
|
0x84FE
|
Passed to texParameter to set the desired maximum anisotropy for a texture.
|
Constant name
|
Value
|
Description
|
COMPRESSED_RGB_S3TC_DXT1_EXT
|
0x83F0
|
A DXT1-compressed image in an RGB image format.
|
COMPRESSED_RGBA_S3TC_DXT1_EXT
|
0x83F1
|
A DXT1-compressed image in an RGB image format with a simple on/off alpha value.
|
COMPRESSED_RGBA_S3TC_DXT3_EXT
|
0x83F2
|
A DXT3-compressed image in an RGBA image format. Compared to a 32-bit RGBA texture, it offers 4:1 compression.
|
COMPRESSED_RGBA_S3TC_DXT5_EXT
|
0x83F3
|
A DXT5-compressed image in an RGBA image format. It also provides a 4:1 compression, but differs to the DXT3 compression in how the alpha compression is done.
|
Constant name
|
Value
|
Description
|
COMPRESSED_R11_EAC
|
0x9270
|
One-channel (red) unsigned format compression.
|
COMPRESSED_SIGNED_R11_EAC
|
0x9271
|
One-channel (red) signed format compression.
|
COMPRESSED_RG11_EAC
|
0x9272
|
Two-channel (red and green) unsigned format compression.
|
COMPRESSED_SIGNED_RG11_EAC
|
0x9273
|
Two-channel (red and green) signed format compression.
|
COMPRESSED_RGB8_ETC2
|
0x9274
|
Compresses RBG8 data with no alpha channel.
|
COMPRESSED_RGBA8_ETC2_EAC
|
0x9275
|
Compresses RGBA8 data. The RGB part is encoded the same as RGB_ETC2 , but the alpha part is encoded separately.
|
COMPRESSED_SRGB8_ETC2
|
0x9276
|
Compresses sRBG8 data with no alpha channel.
|
COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
|
0x9277
|
Compresses sRGBA8 data. The sRGB part is encoded the same as SRGB_ETC2 , but the alpha part is encoded separately.
|
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
|
0x9278
|
Similar to RGB8_ETC , but with ability to punch through the alpha channel, which means to make it completely opaque or transparent.
|
COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
|
0x9279
|
Similar to SRGB8_ETC , but with ability to punch through the alpha channel, which means to make it completely opaque or transparent.
|
Constant name
|
Value
|
Description
|
COMPRESSED_RGB_PVRTC_4BPPV1_IMG
|
0x8C00
|
RGB compression in 4-bit mode. One block for each 4×4 pixels.
|
COMPRESSED_RGBA_PVRTC_4BPPV1_IMG
|
0x8C02
|
RGBA compression in 4-bit mode. One block for each 4×4 pixels.
|
COMPRESSED_RGB_PVRTC_2BPPV1_IMG
|
0x8C01
|
RGB compression in 2-bit mode. One block for each 8×4 pixels.
|
COMPRESSED_RGBA_PVRTC_2BPPV1_IMG
|
0x8C03
|
RGBA compression in 2-bit mode. One block for each 8×4 pixe
|
Constant name
|
Value
|
Description
|
COMPRESSED_RGB_ETC1_WEBGL
|
0x8D64
|
Compresses 24-bit RGB data with no alpha channel.
|
Constant name
|
Value
|
Description
|
COMPRESSED_RGB_ATC_WEBGL
|
0x8C92
|
Compresses RGB textures with no alpha channel.
|
COMPRESSED_RGBA_ATC_EXPLICIT_ALPHA_WEBGL
|
0x8C92
|
Compresses RGBA textures using explicit alpha encoding (useful when alpha transitions are sharp).
|
COMPRESSED_RGBA_ATC_INTERPOLATED_ALPHA_WEBGL
|
0x87EE
|
Compresses RGBA textures using interpolated alpha encoding (useful when alpha transitions are gradient).
|
Constant name
|
Value
|
Description
|
UNSIGNED_INT_24_8_WEBGL
|
0x84FA
|
Unsigned integer type for 24-bit depth texture data.
|
Constant name
|
Value
|
Description
|
HALF_FLOAT_OES
|
0x8D61
|
Half floating-point type (16-bit).
|
Constant name
|
Value
|
Description
|
RGBA32F_EXT
|
0x8814
|
RGBA 32-bit floating-point color-renderable format.
|
RGB32F_EXT
|
0x8815
|
RGB 32-bit floating-point color-renderable format.
|
FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT
|
0x8211
|
|
UNSIGNED_NORMALIZED_EXT
|
0x8C17
|
|
Constant name
|
Value
|
Description
|
MIN_EXT
|
0x8007
|
Produces the minimum color components of the source and destination colors.
|
MAX_EXT
|
0x8008
|
Produces the maximum color components of the source and destination colors.
|
Constant name
|
Value
|
Description
|
SRGB_EXT
|
0x8C40
|
Unsized sRGB format that leaves the precision up to the driver.
|
SRGB_ALPHA_EXT
|
0x8C42
|
Unsized sRGB format with unsized alpha component.
|
SRGB8_ALPHA8_EXT
|
0x8C43
|
Sized (8-bit) sRGB and alpha formats.
|
FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT
|
0x8210
|
Returns the framebuffer color encoding.
|
Constant name
|
Value
|
Description
|
FRAGMENT_SHADER_DERIVATIVE_HINT_OES
|
0x8B8B
|
Indicates the accuracy of the derivative calculation for the GLSL built-in functions: dFdx , dFdy , and fwidth .
|
Constant name
|
Value
|
Description
|
COLOR_ATTACHMENT0_WEBGL
|
0x8CE0
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT1_WEBGL
|
0x8CE1
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT2_WEBGL
|
0x8CE2
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT3_WEBGL
|
0x8CE3
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT4_WEBGL
|
0x8CE4
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT5_WEBGL
|
0x8CE5
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT6_WEBGL
|
0x8CE6
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT7_WEBGL
|
0x8CE7
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT8_WEBGL
|
0x8CE8
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT9_WEBGL
|
0x8CE9
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT10_WEBGL
|
0x8CEA
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT11_WEBGL
|
0x8CEB
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT12_WEBGL
|
0x8CEC
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT13_WEBGL
|
0x8CED
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT14_WEBGL
|
0x8CEE
|
Framebuffer color attachment point
|
COLOR_ATTACHMENT15_WEBGL
|
0x8CEF
|
Framebuffer color attachment point
|
DRAW_BUFFER0_WEBGL
|
0x8825
|
Draw buffer
|
DRAW_BUFFER1_WEBGL
|
0x8826
|
Draw buffer
|
DRAW_BUFFER2_WEBGL
|
0x8827
|
Draw buffer
|
DRAW_BUFFER3_WEBGL
|
0x8828
|
Draw buffer
|
DRAW_BUFFER4_WEBGL
|
0x8829
|
Draw buffer
|
DRAW_BUFFER5_WEBGL
|
0x882A
|
Draw buffer
|
DRAW_BUFFER6_WEBGL
|
0x882B
|
Draw buffer
|
DRAW_BUFFER7_WEBGL
|
0x882C
|
Draw buffer
|
DRAW_BUFFER8_WEBGL
|
0x882D
|
Draw buffer
|
DRAW_BUFFER9_WEBGL
|
0x882E
|
Draw buffer
|
DRAW_BUFFER10_WEBGL
|
0x882F
|
Draw buffer
|
DRAW_BUFFER11_WEBGL
|
0x8830
|
Draw buffer
|
DRAW_BUFFER12_WEBGL
|
0x8831
|
Draw buffer
|
DRAW_BUFFER13_WEBGL
|
0x8832
|
Draw buffer
|
DRAW_BUFFER14_WEBGL
|
0x8833
|
Draw buffer
|
DRAW_BUFFER15_WEBGL
|
0x8834
|
Draw buffer
|
MAX_COLOR_ATTACHMENTS_WEBGL
|
0x8CDF
|
Maximum number of framebuffer color attachment points
|
MAX_DRAW_BUFFERS_WEBGL
|
0x8824
|
Maximum number of draw buffers
|
Constant name
|
Value
|
Description
|
VERTEX_ARRAY_BINDING_OES
|
0x85B5
|
The bound vertex array object (VAO).
|
Constant name
|
Value
|
Description
|
QUERY_COUNTER_BITS_EXT
|
0x8864
|
The number of bits used to hold the query result for the given target.
|
CURRENT_QUERY_EXT
|
0x8865
|
The currently active query.
|
QUERY_RESULT_EXT
|
0x8866
|
The query result.
|
QUERY_RESULT_AVAILABLE_EXT
|
0x8867
|
A Boolean indicating whether or not a query result is available.
|
TIME_ELAPSED_EXT
|
0x88BF
|
Elapsed time (in nanoseconds).
|
TIMESTAMP_EXT
|
0x8E28
|
The current time.
|
GPU_DISJOINT_EXT
|
0x8FBB
|
A Boolean indicating whether or not the GPU performed any disjoint operation.
|
Specifications
See also