WebGL types - Web APIs 编辑
The following types are used in WebGL interfaces.
WebGL 1
These types are used within a WebGLRenderingContext.
| Type | Web IDL type | Description |
GLenum | unsigned long | Used for enums. See also the list of constants. |
GLboolean | boolean | A Boolean. |
GLbitfield | unsigned long | A bit field that stores multiple, logical bits. Used for example in WebGLRenderingContext.clear(). |
GLbyte | byte | 8-bit twos complement signed integer. |
GLshort | short | 16-bit twos complement signed integer. |
GLint | long | 32-bit twos complement signed integer. |
GLsizei | long | Used for sizes (e.g. width and height of the drawing buffer). |
GLintptr | long long | Special type for pointer arithmetic. |
GLsizeiptr | long long | Special type for pointer arithmetic. |
GLubyte | octet | 8-bit twos complement unsigned integer. |
GLushort | unsigned short | 16-bit twos complement unsigned integer. |
GLuint | unsigned long | 32-bit twos complement unsigned integer. |
GLfloat | unrestricted float | 32-bit IEEE floating point number. |
GLclampf | unrestricted float | Clamped 32-bit IEEE floating point number. |
WebGL 2
These types are used within a WebGL2RenderingContext. All WebGL 1 types are used as well.
| Type | Web IDL type | Description |
GLint64 | long long | Signed 64-bit integer number. |
WebGL extensions
These types are used within WebGL extensions.
| Type | Web IDL type | Description |
GLuint64EXT | long long | Unsigned 64-bit integer number. |
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebGL 1.0 The definition of 'Types' in that specification. | Recommendation | Initial definition |
| WebGL 2.0 The definition of 'Types' in that specification. | Editor's Draft | Defines additional types. |
| EXT_disjoint_timer_query The definition of 'GLuint64EXT' in that specification. | Working Draft | Adds GLuint64EXT |
See also
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