WebGL2RenderingContext.invalidateFramebuffer

The WebGL2RenderingContext.invalidateFramebuffer() method of the WebGL 2 API invalidates the contents of attachments in a framebuffer.

Syntax

void gl.invalidateFramebuffer(target, attachments);

Parameters

target

A GLenum specifying the binding point (target). Possible values:

• gl.FRAMEBUFFER: Collection buffer data storage of color, alpha, depth and stencil buffers used to render an image.
• gl.DRAW_FRAMEBUFFER: Equivalent to gl.FRAMEBUFFER.
• gl.READ_FRAMEBUFFER: Used as a source for reading operations.

attachments

An Array of GLenum specifying the attachment points to invalidate. Possible values:

• gl.COLOR_ATTACHMENT{0-15}: Invalidates one of the framebuffer's color buffers.
• gl.DEPTH_ATTACHMENT: Invalidates the framebuffer's depth buffer.
• gl.STENCIL_ATTACHMENT: Invalidates the framebuffer's stencil buffer.
• gl.DEPTH_STENCIL_ATTACHMENT: Invalidates both the framebuffer's depth and stencil buffer.

Return value

None.

Examples

gl.invalidateFramebuffer(gl.READ_FRAMEBUFFER, 
                         [gl.COLOR_ATTACHMENT0, gl.COLOR_ATTACHMENT1]);

Specifications

Browser compatibility

See also

• WebGL2RenderingContext.invalidateSubFramebuffer()