Web/API/WebGL2RenderingContext/drawArraysInstanced

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

The WebGL2RenderingContext.drawArraysInstanced() method of the WebGL 2 API renders primitives from array data like the gl.drawArrays() method. In addition, it can execute multiple instances of the range of elements.

Note: When using WebGL 1, the ANGLE_instanced_arrays extension can provide this method, too.

Syntax

void gl.drawArraysInstanced(mode, first, count, instanceCount);

Parameters

mode: A GLenum specifying the type primitive to render. Possible values are:

gl.POINTS

Draws a single dot.
gl.LINE_STRIP: Draws a straight line to the next vertex.
gl.LINE_LOOP: Draws a straight line to the next vertex, and connects the last vertex back to the first.
gl.LINES: Draws a line between a pair of vertices.
gl.TRIANGLE_STRIP
gl.TRIANGLE_FAN
gl.TRIANGLES: Draws a triangle for a group of three vertices.

first: A GLint specifying the starting index in the array of vector points.
count: A GLsizei specifying the number of indices to be rendered.
instanceCount: A GLsizei specifying the number of instances of the range of elements to execute.

Return value

None.

Examples

gl.drawArraysInstanced(gl.POINTS, 0, 8, 4);

Specifications

Specification	Status	Comment
WebGL 2.0The definition of 'drawArraysInstanced' in that specification.	Editor's Draft	Initial definition for WebGL.
OpenGL ES 3.0The definition of 'glDrawArraysInstanced' in that specification.	Standard	Man page of the (similar) OpenGL API.

Browser compatibility

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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`drawArraysInstanced`	Chrome Full support 56	Edge Full support 79	Firefox Full support 51	IE No support No	Opera Full support 43	Safari No support No	WebView Android Full support 58	Chrome Android Full support 58	Firefox Android Full support 51	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 7.0

Legend

Full support: Full support
No support: No support