WebGL2RenderingContext.readBuffer()

The WebGL2RenderingContext.readBuffer() method of the WebGL 2 API selects a color buffer as the source for pixels for subsequent calls to copyTexImage2D, copyTexSubImage2D, copyTexSubImage3D or readPixels.

Syntax

void gl.readBuffer(src);

Parameters

src

A GLenum specifying a color buffer. Possible values:

• gl.BACK: Reads from the back color buffer.
• gl.NONE: Reads from no color buffer.
• gl.COLOR_ATTACHMENT{0-15}: Reads from one of the 16 color attachment buffers.

Return value

None.

Examples

gl.readBuffer(gl.COLOR_ATTACHMENT0);

Specifications

Browser compatibility

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See also

• WebGLRenderingContext.copyTexImage2D()
• WebGLRenderingContext.copyTexSubImage2D()
• WebGL2RenderingContext.copyTexSubImage3D()
• WebGLRenderingContext.readPixels()