The WebGLRenderingContext.getExtension()
method enables a WebGL extension.
Syntax
gl.getExtension(name);
Parameters
- name
- A
String
for the name of the WebGL extension to enable.
Return value
A WebGL extension object, or null
if name does not match (case-insensitive) to one of the strings in WebGLRenderingContext.getSupportedExtensions
.
Examples
Once a WebGL extension is enabled, you are able to use the methods, properties or constants that this extension object provides.
var canvas = document.getElementById('canvas'); gl = canvas.getContext('webgl'); gl.getExtension('WEBGL_lose_context').loseContext();
WebGL extensions
Extensions for the WebGL API are registered in the WebGL Extension Registry. The current extensions are:
ANGLE_instanced_arrays
EXT_blend_minmax
EXT_color_buffer_float
EXT_color_buffer_half_float
EXT_disjoint_timer_query
EXT_float_blend
EXT_frag_depth
EXT_sRGB
EXT_shader_texture_lod
EXT_texture_compression_bptc
EXT_texture_compression_rgtc
EXT_texture_filter_anisotropic
KHR_parallel_shader_compile
OES_element_index_uint
OES_fbo_render_mipmap
OES_standard_derivatives
OES_texture_float
OES_texture_float_linear
OES_texture_half_float
OES_texture_half_float_linear
OES_vertex_array_object
OVR_multiview2
WEBGL_color_buffer_float
WEBGL_compressed_texture_astc
WEBGL_compressed_texture_atc
WEBGL_compressed_texture_etc
WEBGL_compressed_texture_etc1
WEBGL_compressed_texture_pvrtc
WEBGL_compressed_texture_s3tc
WEBGL_compressed_texture_s3tc_srgb
WEBGL_debug_renderer_info
WEBGL_debug_shaders
WEBGL_depth_texture
WEBGL_draw_buffers
WEBGL_lose_context
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'WebGLRenderingContext.getExtension' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getExtension | Chrome Full support 9 | Edge Full support 12 | Firefox Full support 4 | IE Full support 11 | Opera Full support 12 | Safari Full support 5.1 | WebView Android Full support Yes | Chrome Android Full support 25 | Firefox Android Full support Yes | Opera Android Full support 12 | Safari iOS Full support 8 | Samsung Internet Android Full support 1.5 |
Legend
- Full support
- Full support