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_shader_texture_lod
EXT_sRGB
EXT_texture_compression_bptc
EXT_texture_compression_rgtc
EXT_texture_filter_anisotropic
EXT_texture_norm16
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
WEBGL_multi_draw
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'WebGLRenderingContext.getExtension' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
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