ReadonlyACTIVE_ATTRIBUTES
ACTIVE_ATTRIBUTES: 35721
ReadonlyACTIVE_TEXTURE
ACTIVE_TEXTURE: 34016
ReadonlyALIASED_LINE_WIDTH_RANGE
ALIASED_LINE_WIDTH_RANGE: 33902
ReadonlyALIASED_POINT_SIZE_RANGE
ALIASED_POINT_SIZE_RANGE: 33901
ReadonlyALPHA_BITS
ALPHA_BITS: 3413
ReadonlyALWAYS
ALWAYS: 519
ReadonlyARRAY_BUFFER
ARRAY_BUFFER: 34962
ReadonlyARRAY_BUFFER_BINDING
ARRAY_BUFFER_BINDING: 34964
ReadonlyATTACHED_SHADERS
ATTACHED_SHADERS: 35717
ReadonlyBLEND_COLOR
BLEND_COLOR: 32773
ReadonlyBLEND_DST_ALPHA
BLEND_DST_ALPHA: 32970
ReadonlyBLEND_DST_RGB
BLEND_DST_RGB: 32968
ReadonlyBLEND_EQUATION
BLEND_EQUATION: 32777
ReadonlyBLEND_EQUATION_ALPHA
BLEND_EQUATION_ALPHA: 34877
ReadonlyBLEND_EQUATION_RGB
BLEND_EQUATION_RGB: 32777
ReadonlyBLEND_SRC_ALPHA
BLEND_SRC_ALPHA: 32971
ReadonlyBLEND_SRC_RGB
BLEND_SRC_RGB: 32969
ReadonlyBLUE_BITS
BLUE_BITS: 3412
ReadonlyBOOL_VEC2
BOOL_VEC2: 35671
ReadonlyBOOL_VEC3
BOOL_VEC3: 35672
ReadonlyBOOL_VEC4
BOOL_VEC4: 35673
ReadonlyBROWSER_DEFAULT_WEBGL
BROWSER_DEFAULT_WEBGL: 37444
ReadonlyBUFFER_SIZE
BUFFER_SIZE: 34660
ReadonlyBUFFER_USAGE
BUFFER_USAGE: 34661
ReadonlyCLAMP_TO_EDGE
CLAMP_TO_EDGE: 33071
ReadonlyCOLOR_ATTACHMENT0
COLOR_ATTACHMENT0: 36064
ReadonlyCOLOR_BUFFER_BIT
COLOR_BUFFER_BIT: 16384
ReadonlyCOLOR_CLEAR_VALUE
COLOR_CLEAR_VALUE: 3106
ReadonlyCOLOR_WRITEMASK
COLOR_WRITEMASK: 3107
ReadonlyCOMPILE_STATUS
COMPILE_STATUS: 35713
ReadonlyCOMPRESSED_TEXTURE_FORMATS
COMPRESSED_TEXTURE_FORMATS: 34467
ReadonlyCONSTANT_ALPHA
CONSTANT_ALPHA: 32771
ReadonlyCONSTANT_COLOR
CONSTANT_COLOR: 32769
ReadonlyCONTEXT_LOST_WEBGL
CONTEXT_LOST_WEBGL: 37442
ReadonlyCULL_FACE
CULL_FACE: 2884
ReadonlyCULL_FACE_MODE
CULL_FACE_MODE: 2885
ReadonlyCURRENT_PROGRAM
CURRENT_PROGRAM: 35725
ReadonlyCURRENT_VERTEX_ATTRIB
CURRENT_VERTEX_ATTRIB: 34342
ReadonlyDECR_WRAP
DECR_WRAP: 34056
ReadonlyDELETE_STATUS
DELETE_STATUS: 35712
ReadonlyDEPTH_ATTACHMENT
DEPTH_ATTACHMENT: 36096
ReadonlyDEPTH_BITS
DEPTH_BITS: 3414
ReadonlyDEPTH_BUFFER_BIT
DEPTH_BUFFER_BIT: 256
ReadonlyDEPTH_CLEAR_VALUE
DEPTH_CLEAR_VALUE: 2931
ReadonlyDEPTH_COMPONENT
DEPTH_COMPONENT: 6402
ReadonlyDEPTH_COMPONENT16
DEPTH_COMPONENT16: 33189
ReadonlyDEPTH_FUNC
DEPTH_FUNC: 2932
ReadonlyDEPTH_RANGE
DEPTH_RANGE: 2928
ReadonlyDEPTH_STENCIL
DEPTH_STENCIL: 34041
ReadonlyDEPTH_STENCIL_ATTACHMENT
DEPTH_STENCIL_ATTACHMENT: 33306
ReadonlyDEPTH_TEST
DEPTH_TEST: 2929
ReadonlyDEPTH_WRITEMASK
DEPTH_WRITEMASK: 2930
ReadonlyDITHER
DITHER: 3024
ReadonlyDONT_CARE
DONT_CARE: 4352
ReadonlydrawingBufferHeight
drawingBufferHeight: number
ReadonlydrawingBufferWidth
drawingBufferWidth: number
ReadonlyDST_ALPHA
DST_ALPHA: 772
ReadonlyDST_COLOR
DST_COLOR: 774
ReadonlyDYNAMIC_DRAW
DYNAMIC_DRAW: 35048
ReadonlyELEMENT_ARRAY_BUFFER
ELEMENT_ARRAY_BUFFER: 34963
ReadonlyELEMENT_ARRAY_BUFFER_BINDING
ELEMENT_ARRAY_BUFFER_BINDING: 34965
ReadonlyFASTEST
FASTEST: 4353
ReadonlyFLOAT_MAT2
FLOAT_MAT2: 35674
ReadonlyFLOAT_MAT3
FLOAT_MAT3: 35675
ReadonlyFLOAT_MAT4
FLOAT_MAT4: 35676
ReadonlyFLOAT_VEC2
FLOAT_VEC2: 35664
ReadonlyFLOAT_VEC3
FLOAT_VEC3: 35665
ReadonlyFLOAT_VEC4
FLOAT_VEC4: 35666
ReadonlyFRAGMENT_SHADER
FRAGMENT_SHADER: 35632
ReadonlyFRAMEBUFFER
FRAMEBUFFER: 36160
ReadonlyFRAMEBUFFER_ATTACHMENT_OBJECT_NAME
FRAMEBUFFER_ATTACHMENT_OBJECT_NAME: 36049
ReadonlyFRAMEBUFFER_ATTACHMENT_OBJECT_TYPE
FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE: 36048
ReadonlyFRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE
FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE: 36051
ReadonlyFRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL
FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL: 36050
ReadonlyFRAMEBUFFER_BINDING
FRAMEBUFFER_BINDING: 36006
ReadonlyFRAMEBUFFER_COMPLETE
FRAMEBUFFER_COMPLETE: 36053
ReadonlyFRAMEBUFFER_INCOMPLETE_ATTACHMENT
FRAMEBUFFER_INCOMPLETE_ATTACHMENT: 36054
ReadonlyFRAMEBUFFER_INCOMPLETE_DIMENSIONS
FRAMEBUFFER_INCOMPLETE_DIMENSIONS: 36057
ReadonlyFRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT
FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: 36055
ReadonlyFRAMEBUFFER_UNSUPPORTED
FRAMEBUFFER_UNSUPPORTED: 36061
ReadonlyFRONT_AND_BACK
FRONT_AND_BACK: 1032
ReadonlyFRONT_FACE
FRONT_FACE: 2886
ReadonlyFUNC_ADD
FUNC_ADD: 32774
ReadonlyFUNC_REVERSE_SUBTRACT
FUNC_REVERSE_SUBTRACT: 32779
ReadonlyFUNC_SUBTRACT
FUNC_SUBTRACT: 32778
ReadonlyGENERATE_MIPMAP_HINT
GENERATE_MIPMAP_HINT: 33170
ReadonlyGEQUAL
GEQUAL: 518
ReadonlyGREATER
GREATER: 516
ReadonlyGREEN_BITS
GREEN_BITS: 3411
ReadonlyHIGH_FLOAT
HIGH_FLOAT: 36338
ReadonlyHIGH_INT
HIGH_INT: 36341
IMPLEMENTATION_COLOR_READ_FORMAT: 35739
ReadonlyIMPLEMENTATION_COLOR_READ_TYPE
IMPLEMENTATION_COLOR_READ_TYPE: 35738
ReadonlyINCR_WRAP
INCR_WRAP: 34055
ReadonlyINT_VEC2
INT_VEC2: 35667
ReadonlyINT_VEC3
INT_VEC3: 35668
ReadonlyINT_VEC4
INT_VEC4: 35669
ReadonlyINVALID_ENUM
INVALID_ENUM: 1280
ReadonlyINVALID_FRAMEBUFFER_OPERATION
INVALID_FRAMEBUFFER_OPERATION: 1286
ReadonlyINVALID_OPERATION
INVALID_OPERATION: 1282
ReadonlyINVALID_VALUE
INVALID_VALUE: 1281
ReadonlyINVERT
INVERT: 5386
ReadonlyLEQUAL
LEQUAL: 515
ReadonlyLINE_LOOP
LINE_LOOP: 2
ReadonlyLINE_STRIP
LINE_STRIP: 3
ReadonlyLINE_WIDTH
LINE_WIDTH: 2849
ReadonlyLINEAR
LINEAR: 9729
ReadonlyLINEAR_MIPMAP_LINEAR
LINEAR_MIPMAP_LINEAR: 9987
ReadonlyLINEAR_MIPMAP_NEAREST
LINEAR_MIPMAP_NEAREST: 9985
ReadonlyLINK_STATUS
LINK_STATUS: 35714
ReadonlyLOW_FLOAT
LOW_FLOAT: 36336
ReadonlyLOW_INT
LOW_INT: 36339
ReadonlyLUMINANCE
LUMINANCE: 6409
ReadonlyLUMINANCE_ALPHA
LUMINANCE_ALPHA: 6410
ReadonlyMAX_COMBINED_TEXTURE_IMAGE_UNITS
MAX_COMBINED_TEXTURE_IMAGE_UNITS: 35661
ReadonlyMAX_CUBE_MAP_TEXTURE_SIZE
MAX_CUBE_MAP_TEXTURE_SIZE: 34076
MAX_FRAGMENT_UNIFORM_VECTORS: 36349
ReadonlyMAX_RENDERBUFFER_SIZE
MAX_RENDERBUFFER_SIZE: 34024
ReadonlyMAX_TEXTURE_IMAGE_UNITS
MAX_TEXTURE_IMAGE_UNITS: 34930
ReadonlyMAX_TEXTURE_SIZE
MAX_TEXTURE_SIZE: 3379
ReadonlyMAX_VARYING_VECTORS
MAX_VARYING_VECTORS: 36348
ReadonlyMAX_VERTEX_ATTRIBS
MAX_VERTEX_ATTRIBS: 34921
ReadonlyMAX_VERTEX_TEXTURE_IMAGE_UNITS
MAX_VERTEX_TEXTURE_IMAGE_UNITS: 35660
MAX_VERTEX_UNIFORM_VECTORS: 36347
ReadonlyMAX_VIEWPORT_DIMS
MAX_VIEWPORT_DIMS: 3386
ReadonlyMEDIUM_FLOAT
MEDIUM_FLOAT: 36337
ReadonlyMEDIUM_INT
MEDIUM_INT: 36340
ReadonlyMIRRORED_REPEAT
MIRRORED_REPEAT: 33648
ReadonlyNEAREST
NEAREST: 9728
ReadonlyNEAREST_MIPMAP_LINEAR
NEAREST_MIPMAP_LINEAR: 9986
ReadonlyNEAREST_MIPMAP_NEAREST
NEAREST_MIPMAP_NEAREST: 9984
ReadonlyNICEST
NICEST: 4354
ReadonlyNO_ERROR
NO_ERROR: 0
ReadonlyNOTEQUAL
NOTEQUAL: 517
ReadonlyONE_MINUS_CONSTANT_ALPHA
ONE_MINUS_CONSTANT_ALPHA: 32772
ReadonlyONE_MINUS_CONSTANT_COLOR
ONE_MINUS_CONSTANT_COLOR: 32770
ReadonlyONE_MINUS_DST_ALPHA
ONE_MINUS_DST_ALPHA: 773
ReadonlyONE_MINUS_DST_COLOR
ONE_MINUS_DST_COLOR: 775
ReadonlyONE_MINUS_SRC_ALPHA
ONE_MINUS_SRC_ALPHA: 771
ReadonlyONE_MINUS_SRC_COLOR
ONE_MINUS_SRC_COLOR: 769
ReadonlyOUT_OF_MEMORY
OUT_OF_MEMORY: 1285
ReadonlyPACK_ALIGNMENT
PACK_ALIGNMENT: 3333
ReadonlyPOLYGON_OFFSET_FACTOR
POLYGON_OFFSET_FACTOR: 32824
ReadonlyPOLYGON_OFFSET_FILL
POLYGON_OFFSET_FILL: 32823
ReadonlyPOLYGON_OFFSET_UNITS
POLYGON_OFFSET_UNITS: 10752
ReadonlyRED_BITS
RED_BITS: 3410
ReadonlyRENDERBUFFER
RENDERBUFFER: 36161
ReadonlyRENDERBUFFER_ALPHA_SIZE
RENDERBUFFER_ALPHA_SIZE: 36179
ReadonlyRENDERBUFFER_BINDING
RENDERBUFFER_BINDING: 36007
ReadonlyRENDERBUFFER_BLUE_SIZE
RENDERBUFFER_BLUE_SIZE: 36178
ReadonlyRENDERBUFFER_DEPTH_SIZE
RENDERBUFFER_DEPTH_SIZE: 36180
ReadonlyRENDERBUFFER_GREEN_SIZE
RENDERBUFFER_GREEN_SIZE: 36177
ReadonlyRENDERBUFFER_HEIGHT
RENDERBUFFER_HEIGHT: 36163
RENDERBUFFER_INTERNAL_FORMAT: 36164
ReadonlyRENDERBUFFER_RED_SIZE
RENDERBUFFER_RED_SIZE: 36176
ReadonlyRENDERBUFFER_STENCIL_SIZE
RENDERBUFFER_STENCIL_SIZE: 36181
ReadonlyRENDERBUFFER_WIDTH
RENDERBUFFER_WIDTH: 36162
ReadonlyRENDERER
RENDERER: 7937
ReadonlyREPEAT
REPEAT: 10497
ReadonlyREPLACE
REPLACE: 7681
ReadonlyRGB5_A1
RGB5_A1: 32855
ReadonlyRGB565
RGB565: 36194
ReadonlyRGBA4
RGBA4: 32854
ReadonlyRGBA8
RGBA8: 32856
ReadonlySAMPLE_ALPHA_TO_COVERAGE
SAMPLE_ALPHA_TO_COVERAGE: 32926
ReadonlySAMPLE_BUFFERS
SAMPLE_BUFFERS: 32936
ReadonlySAMPLE_COVERAGE
SAMPLE_COVERAGE: 32928
ReadonlySAMPLE_COVERAGE_INVERT
SAMPLE_COVERAGE_INVERT: 32939
ReadonlySAMPLE_COVERAGE_VALUE
SAMPLE_COVERAGE_VALUE: 32938
ReadonlySAMPLER_2D
SAMPLER_2D: 35678
ReadonlySAMPLER_CUBE
SAMPLER_CUBE: 35680
ReadonlySAMPLES
SAMPLES: 32937
ReadonlySCISSOR_BOX
SCISSOR_BOX: 3088
ReadonlySCISSOR_TEST
SCISSOR_TEST: 3089
ReadonlySHADER_TYPE
SHADER_TYPE: 35663
ReadonlySHADING_LANGUAGE_VERSION
SHADING_LANGUAGE_VERSION: 35724
ReadonlySRC_ALPHA
SRC_ALPHA: 770
ReadonlySRC_ALPHA_SATURATE
SRC_ALPHA_SATURATE: 776
ReadonlySRC_COLOR
SRC_COLOR: 768
ReadonlySTATIC_DRAW
STATIC_DRAW: 35044
ReadonlySTENCIL_ATTACHMENT
STENCIL_ATTACHMENT: 36128
ReadonlySTENCIL_BACK_FAIL
STENCIL_BACK_FAIL: 34817
ReadonlySTENCIL_BACK_FUNC
STENCIL_BACK_FUNC: 34816
ReadonlySTENCIL_BACK_PASS_DEPTH_FAIL
STENCIL_BACK_PASS_DEPTH_FAIL: 34818
ReadonlySTENCIL_BACK_PASS_DEPTH_PASS
STENCIL_BACK_PASS_DEPTH_PASS: 34819
ReadonlySTENCIL_BACK_REF
STENCIL_BACK_REF: 36003
ReadonlySTENCIL_BACK_VALUE_MASK
STENCIL_BACK_VALUE_MASK: 36004
ReadonlySTENCIL_BACK_WRITEMASK
STENCIL_BACK_WRITEMASK: 36005
ReadonlySTENCIL_BITS
STENCIL_BITS: 3415
ReadonlySTENCIL_BUFFER_BIT
STENCIL_BUFFER_BIT: 1024
ReadonlySTENCIL_CLEAR_VALUE
STENCIL_CLEAR_VALUE: 2961
ReadonlySTENCIL_FAIL
STENCIL_FAIL: 2964
ReadonlySTENCIL_FUNC
STENCIL_FUNC: 2962
ReadonlySTENCIL_INDEX8
STENCIL_INDEX8: 36168
ReadonlySTENCIL_PASS_DEPTH_FAIL
STENCIL_PASS_DEPTH_FAIL: 2965
ReadonlySTENCIL_PASS_DEPTH_PASS
STENCIL_PASS_DEPTH_PASS: 2966
ReadonlySTENCIL_REF
STENCIL_REF: 2967
ReadonlySTENCIL_TEST
STENCIL_TEST: 2960
ReadonlySTENCIL_VALUE_MASK
STENCIL_VALUE_MASK: 2963
ReadonlySTENCIL_WRITEMASK
STENCIL_WRITEMASK: 2968
ReadonlySTREAM_DRAW
STREAM_DRAW: 35040
ReadonlySUBPIXEL_BITS
SUBPIXEL_BITS: 3408
ReadonlyTEXTURE
TEXTURE: 5890
ReadonlyTEXTURE_2D
TEXTURE_2D: 3553
ReadonlyTEXTURE_BINDING_2D
TEXTURE_BINDING_2D: 32873
ReadonlyTEXTURE_BINDING_CUBE_MAP
TEXTURE_BINDING_CUBE_MAP: 34068
ReadonlyTEXTURE_CUBE_MAP
TEXTURE_CUBE_MAP: 34067
ReadonlyTEXTURE_CUBE_MAP_NEGATIVE_X
TEXTURE_CUBE_MAP_NEGATIVE_X: 34070
ReadonlyTEXTURE_CUBE_MAP_NEGATIVE_Y
TEXTURE_CUBE_MAP_NEGATIVE_Y: 34072
ReadonlyTEXTURE_CUBE_MAP_NEGATIVE_Z
TEXTURE_CUBE_MAP_NEGATIVE_Z: 34074
ReadonlyTEXTURE_CUBE_MAP_POSITIVE_X
TEXTURE_CUBE_MAP_POSITIVE_X: 34069
ReadonlyTEXTURE_CUBE_MAP_POSITIVE_Y
TEXTURE_CUBE_MAP_POSITIVE_Y: 34071
ReadonlyTEXTURE_CUBE_MAP_POSITIVE_Z
TEXTURE_CUBE_MAP_POSITIVE_Z: 34073
ReadonlyTEXTURE_MAG_FILTER
TEXTURE_MAG_FILTER: 10240
ReadonlyTEXTURE_MIN_FILTER
TEXTURE_MIN_FILTER: 10241
ReadonlyTEXTURE_WRAP_S
TEXTURE_WRAP_S: 10242
ReadonlyTEXTURE_WRAP_T
TEXTURE_WRAP_T: 10243
ReadonlyTEXTURE0
TEXTURE0: 33984
ReadonlyTEXTURE1
TEXTURE1: 33985
ReadonlyTEXTURE10
TEXTURE10: 33994
ReadonlyTEXTURE11
TEXTURE11: 33995
ReadonlyTEXTURE12
TEXTURE12: 33996
ReadonlyTEXTURE13
TEXTURE13: 33997
ReadonlyTEXTURE14
TEXTURE14: 33998
ReadonlyTEXTURE15
TEXTURE15: 33999
ReadonlyTEXTURE16
TEXTURE16: 34000
ReadonlyTEXTURE17
TEXTURE17: 34001
ReadonlyTEXTURE18
TEXTURE18: 34002
ReadonlyTEXTURE19
TEXTURE19: 34003
ReadonlyTEXTURE2
TEXTURE2: 33986
ReadonlyTEXTURE20
TEXTURE20: 34004
ReadonlyTEXTURE21
TEXTURE21: 34005
ReadonlyTEXTURE22
TEXTURE22: 34006
ReadonlyTEXTURE23
TEXTURE23: 34007
ReadonlyTEXTURE24
TEXTURE24: 34008
ReadonlyTEXTURE25
TEXTURE25: 34009
ReadonlyTEXTURE26
TEXTURE26: 34010
ReadonlyTEXTURE27
TEXTURE27: 34011
ReadonlyTEXTURE28
TEXTURE28: 34012
ReadonlyTEXTURE29
TEXTURE29: 34013
ReadonlyTEXTURE3
TEXTURE3: 33987
ReadonlyTEXTURE30
TEXTURE30: 34014
ReadonlyTEXTURE31
TEXTURE31: 34015
ReadonlyTEXTURE4
TEXTURE4: 33988
ReadonlyTEXTURE5
TEXTURE5: 33989
ReadonlyTEXTURE6
TEXTURE6: 33990
ReadonlyTEXTURE7
TEXTURE7: 33991
ReadonlyTEXTURE8
TEXTURE8: 33992
ReadonlyTEXTURE9
TEXTURE9: 33993
ReadonlyTRIANGLE_FAN
TRIANGLE_FAN: 6
ReadonlyTRIANGLE_STRIP
TRIANGLE_STRIP: 5
ReadonlyTRIANGLES
TRIANGLES: 4
ReadonlyUNPACK_ALIGNMENT
UNPACK_ALIGNMENT: 3317
ReadonlyUNPACK_COLORSPACE_CONVERSION_WEBGL
UNPACK_COLORSPACE_CONVERSION_WEBGL: 37443
ReadonlyUNPACK_FLIP_Y_WEBGL
UNPACK_FLIP_Y_WEBGL: 37440
ReadonlyUNPACK_PREMULTIPLY_ALPHA_WEBGL
UNPACK_PREMULTIPLY_ALPHA_WEBGL: 37441
ReadonlyUNSIGNED_BYTE
UNSIGNED_BYTE: 5121
ReadonlyUNSIGNED_INT
UNSIGNED_INT: 5125
ReadonlyUNSIGNED_SHORT
UNSIGNED_SHORT: 5123
ReadonlyUNSIGNED_SHORT_4_4_4_4
UNSIGNED_SHORT_4_4_4_4: 32819
ReadonlyUNSIGNED_SHORT_5_5_5_1
UNSIGNED_SHORT_5_5_5_1: 32820
ReadonlyUNSIGNED_SHORT_5_6_5
UNSIGNED_SHORT_5_6_5: 33635
ReadonlyVALIDATE_STATUS
VALIDATE_STATUS: 35715
ReadonlyVENDOR
VENDOR: 7936
ReadonlyVERSION
VERSION: 7938
ReadonlyVERTEX_ATTRIB_ARRAY_BUFFER_BINDING
VERTEX_ATTRIB_ARRAY_BUFFER_BINDING: 34975
ReadonlyVERTEX_ATTRIB_ARRAY_ENABLED
VERTEX_ATTRIB_ARRAY_ENABLED: 34338
ReadonlyVERTEX_ATTRIB_ARRAY_NORMALIZED
VERTEX_ATTRIB_ARRAY_NORMALIZED: 34922
ReadonlyVERTEX_ATTRIB_ARRAY_POINTER
VERTEX_ATTRIB_ARRAY_POINTER: 34373
ReadonlyVERTEX_ATTRIB_ARRAY_SIZE
VERTEX_ATTRIB_ARRAY_SIZE: 34339
ReadonlyVERTEX_ATTRIB_ARRAY_STRIDE
VERTEX_ATTRIB_ARRAY_STRIDE: 34340
ReadonlyVERTEX_ATTRIB_ARRAY_TYPE
VERTEX_ATTRIB_ARRAY_TYPE: 34341
ReadonlyVERTEX_SHADER
VERTEX_SHADER: 35633
ReadonlyVIEWPORT
VIEWPORT: 2978
Provides an interface to the OpenGL ES 2.0 graphics rendering context for the drawing surface of an HTML
MDN Reference