W3cubDocs

/Web APIs

WebGL2RenderingContext: clearBuffer[fiuv]() method

The WebGL2RenderingContext.clearBuffer[fiuv]() methods of the WebGL 2 API clear buffers from the currently bound framebuffer.

Syntax

js

clearBufferfv(buffer, drawbuffer, values)
clearBufferfv(buffer, drawbuffer, values, srcOffset)

clearBufferiv(buffer, drawbuffer, values)
clearBufferiv(buffer, drawbuffer, values, srcOffset)

clearBufferuiv(buffer, drawbuffer, values)
clearBufferuiv(buffer, drawbuffer, values, srcOffset)

clearBufferfi(buffer, drawbuffer, depth, stencil)

Parameters

buffer

A GLenum specifying the buffer to clear. Possible values are:

  • gl.COLOR: Color buffer.
  • gl.DEPTH: Depth buffer.
  • gl.STENCIL: Stencil buffer.
  • gl.DEPTH_STENCIL: clears depth and stencil buffers (used with clearBufferfi).
drawBuffer

A GLint specifying the draw buffer to clear.

values

An Array of GLint, GLuint or GLfloat values or an Int32Array, Uint32Array or Float32Array specifying the values to clear to.

depth

A GLfloat specifying the value to clear a depth render buffer to.

stencil

A GLint specifying the value to clear the stencil render buffer to.

Return value

None (undefined).

Examples

js

gl.clearBufferiv(gl.COLOR, 0, new Int32Array([r, g, b, a]));
gl.clearBufferuiv(gl.COLOR, 0, new Uint32Array([r, g, b, a]));
gl.clearBufferfv(gl.COLOR, 0, new Float32Array([r, g, b, a]));
gl.clearBufferfv(gl.COLOR, 0, [0.0, 0.0, 0.0, 0.0]);
gl.clearBufferfi(gl.DEPTH_STENCIL, 0, 1.0, 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
SharedArrayBuffer_as_param 60 79 79 No 47 No 60 60 79 44 No 8.0
clearBuffer 56 79 51 No 43 15 58 58 51 43 15 7.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/clearBuffer