WebGL の定数
WebGL API は、関数に渡されるか、または関数から返される様々な定数を提供しています。すべての定数は GLenum 型です。
標準の WebGL 定数は WebGLRenderingContext, WebGL2RenderingContext オブジェクトに用意されていますが、これは定数を gl.CONSTANT_NAME のように利用するためです:
js
var canvas = document.getElementById("myCanvas");
var gl = canvas.getContext("webgl");
gl.getParameter(gl.LINE_WIDTH);
一部の定数については、WebGL 拡張機能から提供されることもあります。リストが以下に記載されています。
js
var debugInfo = gl.getExtension("WEBGL_debug_renderer_info");
var vendor = gl.getParameter(debugInfo.UNMASKED_VENDOR_WEBGL);
WebGL チュートリアルには、WebGL の入門方法に関してより多くの情報や例、リソースがあります。
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. |
有効化と無効化
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. |
エラー
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(). |
データ型
| 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 |
シェーダー
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 | コンパイルの状態を取得するために getShaderParamter に渡されます。シェーダーがコンパイルされなかった場合、false が返ります。その場合は getShaderInfoLog に問い合わせて正確なエラーを見つけられます。 |
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
ANGLE_instanced_arrays
| Constant name | Value | Description |
|---|---|---|
VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE |
0x88FE | Describes the frequency divisor used for instanced rendering. |
WEBGL_debug_renderer_info
| 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. |
EXT_texture_filter_anisotropic
| 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. |
WEBGL_compressed_texture_s3tc
| 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. |
WEBGL_compressed_texture_etc
| 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. |
WEBGL_compressed_texture_pvrtc
| 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 |
WEBGL_compressed_texture_etc1
| Constant name | Value | Description |
|---|---|---|
COMPRESSED_RGB_ETC1_WEBGL |
0x8D64 | Compresses 24-bit RGB data with no alpha channel. |
WEBGL_compressed_texture_atc
| 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). |
WEBGL_depth_texture
| Constant name | Value | Description |
|---|---|---|
UNSIGNED_INT_24_8_WEBGL |
0x84FA | Unsigned integer type for 24-bit depth texture data. |
OES_texture_half_float
| Constant name | Value | Description |
|---|---|---|
HALF_FLOAT_OES |
0x8D61 | Half floating-point type (16-bit). |
WEBGL_color_buffer_float
| 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 |
EXT_blend_minmax
| 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. |
EXT_sRGB
| 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. |
OES_standard_derivatives
| 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. |
WEBGL_draw_buffers
| 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 |
OES_vertex_array_object
| Constant name | Value | Description |
|---|---|---|
VERTEX_ARRAY_BINDING_OES |
0x85B5 | The bound vertex array object (VAO). |
EXT_disjoint_timer_query
| 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. |
仕様書
| Specification |
|---|
| WebGL # 5.14 |
| WebGL2 # 3.7 |