psychopy.tools.gltools.useFBO¶

psychopy.tools.gltools.useFBO(fbo)[source]¶

Context manager for Framebuffer Object bindings. This function yields the framebuffer name as an integer.

:param fbo int or Framebuffer: OpenGL Framebuffer Object name/ID or descriptor.

Yields:

int – OpenGL name of the framebuffer bound in the context.

Examples

Using a framebuffer context manager:

# FBO bound somewhere deep in our code
GL.glBindFramebuffer(GL.GL_FRAMEBUFFER, someOtherFBO)

...

# create a new FBO, but we have no idea what the currently bound FBO is
fbo = createFBO()

# use a context to bind attachments
with bindFBO(fbo):
    attach(GL.GL_COLOR_ATTACHMENT0, colorTex)
    attach(GL.GL_DEPTH_ATTACHMENT, depthRb)
    attach(GL.GL_STENCIL_ATTACHMENT, depthRb)
    isComplete = gltools.isComplete()

# someOtherFBO is still bound!