EXT_frag_depth
扩展属于
WebGL API
and enables to set a depth value of a fragment from within the fragment shader.
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. It requires GLSL
#version 300 es
.
Enable the extension:
gl.getExtension('EXT_frag_depth');
Now the output variable
gl_FragDepthEXT
is available to set a depth value of a fragment from within the fragment shader:
<script type="x-shader/x-fragment">
void main() {
gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);
gl_FragDepthEXT = 0.5;
}
</script>
| 规范 | 状态 | 注释 |
|---|---|---|
|
EXT_frag_depth
The definition of 'EXT_frag_depth' 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_frag_depth
|
Chrome Yes | Edge ≤18 | Firefox 30 | 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
EXT_frag_depth
ANGLE_instanced_arrays
EXT_blend_minmax
EXT_color_buffer_half_float
EXT_disjoint_timer_query
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
WEBGL_lose_context
WebGL2RenderingContext
WebGLActiveInfo
WebGLBuffer
WebGLContextEvent
WebGLFramebuffer
WebGLObject
WebGLProgram
WebGLQuery
WebGLRenderbuffer
WebGLRenderingContext
WebGLSampler
WebGLShader
WebGLShaderPrecisionFormat
WebGLSync
WebGLTexture
WebGLTransformFeedback
WebGLUniformLocation
WebGLVertexArrayObject