picogl.protocols.drawable_buffer
================================

.. py:module:: picogl.protocols.drawable_buffer

.. autoapi-nested-parse::

   OpenGL buffer protocols for ElMo.

   Defines a shared interface (DrawableBuffer) for buffer/VAO objects used in
   legacy and modern backends, so group-level and draw code can treat them
   uniformly.



Classes
-------

.. autoapisummary::

   picogl.protocols.drawable_buffer.DrawableBuffer


Module Contents
---------------

.. py:class:: DrawableBuffer

   Bases: :py:obj:`Protocol`


   Protocol for OpenGL buffer/VAO objects that can be bound, drawn, and deleted.

   Implementors must provide bind(), unbind(), draw(), and delete().
   Optional: is_valid() for validity checks; __enter__/__exit__ for
   context-manager support (with obj: obj.draw()).

   Legacy VBO groups and modern VAOs (AtomVAO, BondsVAO, RibbonVAO, CalphasVAO,
   RibbonVBG, etc.) conform to this protocol.


   .. py:method:: bind() -> None

      Bind this buffer/VAO for rendering.



   .. py:method:: unbind() -> None

      Unbind this buffer/VAO after rendering.



   .. py:method:: draw(*args: Any, **kwargs: Any) -> None

      Issue draw calls. Signature is backend-specific (e.g. atom_count, index_count).



   .. py:method:: delete() -> None

      Release GPU resources.