WebGL2RenderingContext.clearBuffer[fiuv]()

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

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

Syntax

void gl.clearBufferfv(buffer, drawbuffer, values, optional srcOffset); 
void gl.clearBufferiv(buffer, drawbuffer, values, optional srcOffset); 
void gl.clearBufferuiv(buffer, drawbuffer, values, optional srcOffset); 
void gl.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 GLintGLuint 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.

Examples

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

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
clearBufferivChrome Full support 56Edge No support NoFirefox Full support 51IE No support NoOpera Full support 43Safari No support NoWebView Android Full support 58Chrome Android Full support 58Edge Mobile No support NoFirefox Android Full support 51Opera Android Full support 43Safari iOS No support NoSamsung Internet Android Full support 7.0
SharedArrayBuffer as a parameterChrome Full support 60Edge No support NoFirefox ? IE No support NoOpera Full support 47Safari No support NoWebView Android Full support 60Chrome Android Full support 60Edge Mobile No support NoFirefox Android ? Opera Android Full support 47Safari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also

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