WEBGL_lose_context
扩展属于
WebGL API
and exposes functions to simulate losing and restoring a
WebGLRenderingContext
.
WebGL extensions are available using the
WebGLRenderingContext.getExtension()
method. For more information, see also
使用扩展
在
WebGL 教程
.
可用性: This extension is available to both, WebGL1 and WebGL2 上下文。
WEBGL_lose_context.loseContext()
Simulates losing the context.
WEBGL_lose_context.restoreContext()
Simulates restoring the context.
With this extension, you can simulate the
webglcontextlost
and
webglcontextrestored
事件:
const canvas = document.getElementById('canvas');
const gl = canvas.getContext('webgl');
canvas.addEventListener('webglcontextlost', (event) => {
console.log(event);
});
gl.getExtension('WEBGL_lose_context').loseContext();
// WebGLContextEvent event with type "webglcontextlost" is logged.
| 规范 | 状态 | 注释 |
|---|---|---|
|
WEBGL_lose_context
The definition of 'WEBGL_lose_context' in that specification. |
推荐 | 初始定义。 |
The compatibility table in 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.
更新 GitHub 上的兼容性数据| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
loseContext
|
Chrome Yes | Edge 17 |
Firefox
22
|
IE ? | Opera Yes | Safari ? | WebView Android Yes | Chrome Android Yes | Firefox Android ? | Opera Android Yes | Safari iOS ? | Samsung Internet Android Yes |
完整支持
兼容性未知
要求使用供应商前缀或不同名称。
WebGLRenderingContext.isContextLost()
webglcontextlost
,
webglcontextrestored
,
webglcontextcreationerror
WEBGL_lose_context
ANGLE_instanced_arrays
EXT_blend_minmax
EXT_color_buffer_half_float
EXT_disjoint_timer_query
EXT_frag_depth
EXT_sRGB
EXT_shader_texture_lod
EXT_texture_filter_anisotropic
OES_element_index_uint
OES_standard_derivatives
OES_texture_float
OES_texture_float_linear
OES_texture_half_float
OES_texture_half_float_linear
OES_vertex_array_object
WEBGL_color_buffer_float
WEBGL_compressed_texture_atc
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
WebGL2RenderingContext
WebGLActiveInfo
WebGLBuffer
WebGLContextEvent
WebGLFramebuffer
WebGLObject
WebGLProgram
WebGLQuery
WebGLRenderbuffer
WebGLRenderingContext
WebGLSampler
WebGLShader
WebGLShaderPrecisionFormat
WebGLSync
WebGLTexture
WebGLTransformFeedback
WebGLUniformLocation
WebGLVertexArrayObject