When true
, the drawing buffer has an alpha channel.
When true
and antialiasing is supported, the drawing buffer will use an antialiasing method if it's choice.
When true
, the drawing buffer has a depth buffer of at least 16 bits.
When true
the page compositor assumes the buffer's contents is premultiplied.
When true
the page compositor assumes the buffer's contents is premultiplied. Used for sensible transparency when using
WebGL canvases for overlays.
When true
, the drawing buffer is preserved after rendering, otherwise it is cleared.
When true
, the drawing buffer is preserved after rendering, otherwise it is cleared. On some implementations preserving the drawing buffer
can dramatically impact performance.
When true
, the drawing buffer has a stencil buffer of at least 8 bits.
Contains drawing surface attributes.