EXT_sRGB
扩展属于
WebGL API
and adds sRGB support to textures and framebuffer objects.
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 only available to
WebGL1
contexts. In
WebGL2
, the functionality of this extension is available on the WebGL2 context by default. The constants in WebGL2 are:
gl.SRGB
,
gl.SRGB8
,
gl.SRGB8_ALPHA8
and
gl.FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
.
This extension exposes the following constants, which can be used in the
texImage2D()
,
texSubImage2D()
,
renderbufferStorage()
and
getFramebufferAttachmentParameter()
方法。
ext.SRGB_EXT
Unsized sRGB format that leaves the precision up to the driver.
ext.SRGB_ALPHA_EXT
Unsized sRGB format with unsized alpha component.
ext.SRGB8_ALPHA8_EXT
Sized (8-bit) sRGB and alpha formats.
ext.FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT
gl.LINEAR
or
ext.SRGB_EXT
).
var ext = gl.getExtension('EXT_sRGB');
var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, ext.SRGB_EXT, 512, 512, 0,
ext.SRGB_EXT, gl.UNSIGNED_BYTE, image);
| 规范 | 状态 | 注释 |
|---|---|---|
|
EXT_sRGB
The definition of 'EXT_sRGB' 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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EXT_sRGB
|
Chrome Yes | Edge 79 | Firefox 28 | 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
WebGLRenderingContext.getExtension()
WebGLRenderingContext.texImage2D()
WebGLRenderingContext.texSubImage2D()
WebGLRenderingContext.renderbufferStorage()
WebGLRenderingContext.getFramebufferAttachmentParameter()
EXT_sRGB
ANGLE_instanced_arrays
EXT_blend_minmax
EXT_color_buffer_half_float
EXT_disjoint_timer_query
EXT_frag_depth
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
WEBGL_lose_context
WebGL2RenderingContext
WebGLActiveInfo
WebGLBuffer
WebGLContextEvent
WebGLFramebuffer
WebGLObject
WebGLProgram
WebGLQuery
WebGLRenderbuffer
WebGLRenderingContext
WebGLSampler
WebGLShader
WebGLShaderPrecisionFormat
WebGLSync
WebGLTexture
WebGLTransformFeedback
WebGLUniformLocation
WebGLVertexArrayObject