在此页

• 常量
• 方法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

ANGLE_instanced_arrays 扩展属于 WebGL API and allows to draw the same object, or groups of similar objects multiple times, if they share the same vertex data, primitive count and type.

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 and the constants and methods are available without the " ANGLE " suffix.

Despite the name "ANGLE", this extension works on any device if the hardware supports it and not just on Windows when using the ANGLE library. "ANGLE" just indicates that this extension has been written by the ANGLE library authors.

常量

This extension exposes one new constant, which can be used in the gl.getVertexAttrib() 方法：

ext.VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE

返回 GLint describing the frequency divisor used for instanced rendering when used in the gl.getVertexAttrib() 作为 pname 参数。

方法

This extension exposes three new methods.

ext.drawArraysInstancedANGLE()

Behaves identically to gl.drawArrays() except that multiple instances of the range of elements are executed, and the instance advances for each iteration.

ext.drawElementsInstancedANGLE()

Behaves identically to gl.drawElements() except that multiple instances of the set of elements are executed and the instance advances between each set.

ext.vertexAttribDivisorANGLE()

Modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives with ext.drawArraysInstancedANGLE() and ext.drawElementsInstancedANGLE() .

范例

Enabling the extension:

var ext = gl.getExtension('ANGLE_instanced_arrays');
					

规范

规范	状态	注释
ANGLE_instanced_arrays The definition of 'ANGLE_instanced_arrays' in that specification.	推荐	初始定义。

浏览器兼容性

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
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
ANGLE_instanced_arrays	Chrome 30 Alternate Name 30 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays	Edge 79 Alternate Name 79 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays 不支持 12 — 79	Firefox 33	IE 11	Opera 17 Alternate Name 17 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays	Safari 7	WebView Android 4.4 Alternate Name 4.4 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays	Chrome Android 30 Alternate Name 30 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays	Firefox Android Yes	Opera Android 18 Alternate Name 18 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays	Safari iOS Yes	Samsung Internet Android 2.0 Alternate Name 2.0 Alternate Name Alternate Name Uses the non-standard name: ANGLEInstancedArrays
drawArraysInstancedANGLE	Chrome 30	Edge 12	Firefox 33	IE 11	Opera 17	Safari 7	WebView Android 4.4	Chrome Android 30	Firefox Android Yes	Opera Android 18	Safari iOS Yes	Samsung Internet Android 2.0
drawElementsInstancedANGLE	Chrome 30	Edge 12	Firefox 33	IE 11	Opera 17	Safari 7	WebView Android 4.4	Chrome Android 30	Firefox Android Yes	Opera Android 18	Safari iOS Yes	Samsung Internet Android 2.0
vertexAttribDivisorANGLE	Chrome 30	Edge 12	Firefox 33	IE 11	Opera 17	Safari 7	WebView Android 4.4	Chrome Android 30	Firefox Android Yes	Opera Android 18	Safari iOS Yes	Samsung Internet Android 2.0

图例

完整支持

完整支持

使用非标名称。

另请参阅

• WebGLRenderingContext.getExtension()
• WebGL2RenderingContext.drawArraysInstanced()
• WebGL2RenderingContext.drawElementsInstanced()
• WebGL2RenderingContext.vertexAttribDivisor()

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. WebGL API
2. ANGLE_instanced_arrays
3. 方法

   1. drawArraysInstancedANGLE()
   2. drawElementsInstancedANGLE()
   3. vertexAttribDivisorANGLE()
4. WebGL 相关页面

   1. EXT_blend_minmax
   2. EXT_color_buffer_half_float
   3. EXT_disjoint_timer_query
   4. EXT_frag_depth
   5. EXT_sRGB
   6. EXT_shader_texture_lod
   7. EXT_texture_filter_anisotropic
   8. OES_element_index_uint
   9. OES_standard_derivatives
   10. OES_texture_float
   11. OES_texture_float_linear
   12. OES_texture_half_float
   13. OES_texture_half_float_linear
   14. OES_vertex_array_object
   15. WEBGL_color_buffer_float
   16. WEBGL_compressed_texture_atc
   17. WEBGL_compressed_texture_etc1
   18. WEBGL_compressed_texture_pvrtc
   19. WEBGL_compressed_texture_s3tc
   20. WEBGL_compressed_texture_s3tc_srgb
   21. WEBGL_debug_renderer_info
   22. WEBGL_debug_shaders
   23. WEBGL_depth_texture
   24. WEBGL_draw_buffers
   25. WEBGL_lose_context
   26. WebGL2RenderingContext
   27. WebGLActiveInfo
   28. WebGLBuffer
   29. WebGLContextEvent
   30. WebGLFramebuffer
   31. WebGLObject
   32. WebGLProgram
   33. WebGLQuery
   34. WebGLRenderbuffer
   35. WebGLRenderingContext
   36. WebGLSampler
   37. WebGLShader
   38. WebGLShaderPrecisionFormat
   39. WebGLSync
   40. WebGLTexture
   41. WebGLTransformFeedback
   42. WebGLUniformLocation
   43. WebGLVertexArrayObject