WebGL2RenderingContext: clearBufferfiuv method

{{APIRef("WebGL")}}{{AvailableInWorkers}}

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

Syntax

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 {{domxref("WebGL_API/Types", "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 {{domxref("WebGL_API/Types", "GLint")}} specifying the draw buffer to clear.

• values

  • : An {{jsxref("Array")}} of {{domxref("WebGL_API/Types", "GLint")}}, {{domxref("WebGL_API/Types", "GLuint")}} or {{domxref("WebGL_API/Types", "GLfloat")}} values or an {{jsxref("Int32Array")}}, {{jsxref("Uint32Array")}} or {{jsxref("Float32Array")}} specifying the values to clear to.

• depth

  • : A {{domxref("WebGL_API/Types", "GLfloat")}} specifying the value to clear a depth render buffer to.

• stencil

  • : A {{domxref("WebGL_API/Types", "GLint")}} specifying the value to clear the stencil render buffer to.

Return value

None ({{jsxref("undefined")}}).

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

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("WebGL2RenderingContext.drawBuffers()")}}