WebGL2RenderingContext: drawRangeElements() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

Note: This feature is available in Web Workers.

The WebGL2RenderingContext.drawRangeElements() method of the WebGL API renders primitives from array data in a given range.

Syntax

js
drawRangeElements(mode, start, end, count, type, offset)

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.
start

A GLuint specifying the minimum array index contained in offset.

end

A GLuint specifying the maximum array index contained in offset.

count

A GLsizei specifying the number of elements to be rendered.

type

A GLenum specifying the type of the values in the element array buffer. Possible values are:

  • gl.UNSIGNED_BYTE
  • gl.UNSIGNED_SHORT
  • gl.UNSIGNED_INT
offset

A GLintptr specifying an offset in the element array buffer. Must be a valid multiple of the size of the given type.

Return value

None (undefined).

Exceptions

  • If mode is not one of the accepted values, a gl.INVALID_ENUM error is thrown.
  • If offset is a valid multiple of the size of the given type, a gl.INVALID_OPERATION error is thrown.
  • If count is negative, a gl.INVALID_VALUE error is thrown.

Examples

js
gl.drawRangeElements(gl.POINTS, 0, 7, 8, gl.UNSIGNED_BYTE, 0);

Specifications

Specification
WebGL 2.0 Specification
# 3.7.9

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
drawRangeElements

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also