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_SUBSTRACT |
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). |
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 drawn. |
BACK |
0x0405 |
Passed to cullFace to specify that only back faces should be drawn. |
FRONT_AND_BACK |
0x0408 |
Passed to cullFace to specify that front and back faces should be drawn. |
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 |
|
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 |
|
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. |
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. |
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. |
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. |
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. |
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 |
|
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_INDEX |
0x1901 |
|
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.
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 |
|
TEXTURES_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 |
|
COMPRESSED_R11_EAC |
0x9270 |
|
COMPRESSED_SIGNED_R11_EAC |
0x9271 |
|
COMPRESSED_RG11_EAC |
0x9272 |
|
COMPRESSED_SIGNED_RG11_EAC |
0x9273 |
|
COMPRESSED_RGB8_ETC2 |
0x9274 |
|
COMPRESSED_SRGB8_ETC2 |
0x9275 |
|
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 |
0x9276 |
|
COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC |
0x9277 |
|
COMPRESSED_RGBA8_ETC2_EAC |
0x9278 |
|
COMPRESSED_SRGB8_ALPHA8_ETC2_EAC |
0x9279 |
|
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 |
|
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 |
|
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
Browser compatibility
Feature |
Chrome |
Firefox (Gecko) |
Internet Explorer |
Opera |
Safari |
Basic support |
9 |
4.0 (2.0) |
11 |
12 |
5.1 |
Feature |
Android |
Chrome for Android |
Firefox Mobile (Gecko) |
IE Mobile |
Opera Mobile |
Safari Mobile |
Basic support |
? |
25 |
(Yes) |
? |
12 |
8.1 |
See also