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WebGL2RenderingContext: drawRangeElements() method

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

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
drawRangeElements 56 79 51 No 43 15 58 58 51 43 15 7.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/drawRangeElements