Web Gl Cheat Sheet (Page 2 of 4) in pdf

Program objects

Textures

createProgram(

createTexture(

void )

Object

Create a program object

Create a texture

validateProgram(

deleteTexture(

void

Object program )

void

Object texture )

Validate a program object

Delete a texture.

linkProgram(

bindTexture(

Object program )

ulong target, Object texture )

void

Link a program object

Bind a texture to a texturing target. Accepted values

useProgram(

ulong program )

for target are:

void

Install a program as part of current rendering state

TEXTURE_2D

TEXTURE_CUBE_MAP

deleteProgram(

void

Object program )

activeTexture(

ulong texture )

void

Delete a program object

Select active texture unit.

getProgramParameter(

Object pgm, ulong pname )

any

getTexParameter(

ulong target, ulong pname )

any

Return parameter, pname, from a program object:

Return parameter, pname, of a texture:

LINK_STATUS

INFO_LOG_LENGTH

TEXTURE_WRAP_S

TEXTURE_MAG_FILTER

DELETE_STATUS

VALIDATE_STATUS

TEXTURE_WRAP_T

TEXTURE_MIN_FILTER

ATTACHED_SHADERS

ACTIVE_UNIFORMS

texParameterf(

void

ulong target, ulong pname, float v )

ACTIVE_ATTRIBUTES

texParameteri(

ulong target, ulong pname, long v )

void

ACTIVE_ATTRIBUTE_MAX_LENGTH

Set texture parameters.

ACTIVE_UNIFORM_MAX_LENGTH

texImage2D(

void

ulong target, long level,

getProgramInfoLog(

Object program )

string

ulong intformat, ulong width, ulong height, long

Return the information log for a program object

border, ulong format, ulong type, Object data )

isProgram(

bool

Object program )

Specify a two-dimensional texture image from a

Determine if an object is a program object.

WebGLArray of pixel data. See readPixels for accepted

getParameter(

any

ulong pname )

type values. Accepted values for intformat and format

Relevant parameters: CURRENT_PROGRAM

are:

ALPHA

RGB

RGBA

Shaders

LUMINANCE

LUMINANCE_ALPHA

texImage2D(

ulong target, long level, Object data,

createShader(

void

Object

ulong shaderType )

[bool flipY], [bool asPreMultipliedAlpha] )

Create a shader object. Parameter shaderType must be

Specify a two-dimensional texture image from either

VERTEX_SHADER or FRAGMENT_SHADER.

an ImageData object or a HTMLImageElement,

compileShader(

Object shader )

void

HTMLCanvasElement or HTMLVideoElement.

Compile a shader object

texSubImage2D(

ulong target, long level,

void

attachShader(

Object program, Object shader )

void

long xoffset, long yoffset, ulong width, ulong

detachShader(

void

Object program, Object shader )

height, ulong format, ulong type, Object data )

Attach/detach a shader object.

Specify a two-dimensional texture subimage from a

deleteShader(

Object shader )

void

WebGLArray of pixel data.

Delete a shader object

texSubImage2D(

ulong target, long level,

void

getShaderParameter(

Object shader, ulong pname )

any

long xoffset, long yoffset, Object data, [bool

Return parameter, pname, from a shader object:

flipY], [bool asPreMultipliedAlpha] )

SHADER_TYPE

DELETE_STATUS

Specify a two-dimensional texture subimage from

COMPILE_STATUS

INFO_LOG_LENGTH

either an ImageData object or a HTMLImageElement,

SHADER_SOURCE_LENGTH

HTMLCanvasElement or a HTMLVideoElement.

getShaderInfoLog(

Object shader )

string

copyTexImage2D(

void

ulong target, long level,

Return the information log for a shader object

ulong intformat, long x, long y, ulong width,

getShaderSource(

Object shader )

string

ulong height, long border )

shaderSource(

Object shader, string source )

void

Copy pixels into a 2D texture image. See

Get/set the source code in a shader object

framebufferTexture2D for accepted target values.

getAttachedShaders

(

Array

Object program )

copyTexSubImage2D(

ulong target, long level,

void

Return the shader objects attached to a program.

ulong intformat, long xoffset, long yoffset, long

isShader(

Object shader )

bool

x, long y, ulong width, ulong height )

Determine if an object is a shader object.

Copy a two-dimensional texture subimage.

getParameter(

ulong pname )

any

generateMipmap(

void

ulong target )

Relevant parameters:

Generate a complete set of mipmaps for a texture.

SHADER_COMPILER

MAX_VARYING_VECTORS

isTexture(

Object buffer )

bool

Determine if an object is a texture.

Culling

getParameter(

any

ulong pname )

Relevant parameters:

enable|disable(

CULL_FACE )

void

TEXTURE_BINDING_2D

cullFace(

ulong mode )

void

TEXTURE_BINDING_CUBE_MAP

Specify facet culling mode, accepted values are:

MAX_TEXTURE_SIZE

FRONT

BACK

FRONT_AND_BACK

MAX_CUBE_MAP_TEXTURE_SIZE

frontFace(

void

ulong mode )

ACTIVE_TEXTURE

Define front/back-facing mode: CW or CCW

MAX_TEXTURE_IMAGE_UNITS

getParameter(

any

ulong pname )

MAX_VERTEX_TEXTURE_IMAGE_UNITS

Parameters: CULL_FACE_MODE or FRONT_FACE

MAX_COMBINED_TEXTURE_IMAGE_UNITS

Web Gl Cheat Sheet Page 2

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