gl.DrawBuffer(mode)
gl.DrawBuffer()
.
The following constants can be passed in mode
:
#GL_NONE
#GL_FRONT_LEFT
#GL_FRONT_RIGHT
#GL_BACK_LEFT
#GL_BACK_RIGHT
#GL_FRONT
#GL_BACK
#GL_LEFT
#GL_RIGHT
#GL_FRONT_AND_BACK
#GL_AUXi
i
is written where i
is between 0 and the value of #GL_AUX_BUFFERS
minus 1.
Note that #GL_AUX_BUFFERS
is not the upper limit; use gl.Get() to query the number of available aux buffers.
It is always the case that #GL_AUXi
= #GL_AUX0
+ i
.
If more than one color buffer is selected for drawing, then blending or logical operations are computed and applied independently for each color buffer and can produce different results in each buffer.
Monoscopic contexts include only left buffers, and stereoscopic contexts include both left and right buffers. Likewise, single-buffered contexts include only front buffers, and double-buffered contexts include both front and back buffers. The context is selected at GL initialization.
The initial value is #GL_FRONT
for single-buffered contexts, and #GL_BACK
for double-buffered contexts.
Please consult an OpenGL reference manual for more information.
#GL_INVALID_ENUM
is generated if mode is not an accepted value.
#GL_INVALID_OPERATION
is generated if none of the buffers indicated by mode exists.
#GL_INVALID_OPERATION
is generated if gl.DrawBuffer()
is executed between the execution of gl.Begin() and the corresponding execution of gl.End() .
#GL_DRAW_BUFFER
gl.Get() with argument #GL_AUX_BUFFERS