wolfhece.opengl.filled_polygon_shader2d
=======================================

.. py:module:: wolfhece.opengl.filled_polygon_shader2d

.. autoapi-nested-parse::

   Shared-resource filled polygon shader for vector rendering.

   Renders filled polygons from CPU-triangulated geometry (triangle list)
   with optional alpha animation. The shader program is compiled once
   and reused for all vectors.







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

.. py:data:: SHADER_DIR

.. py:class:: FilledPolygonShader2D

   Shared shader pipeline for CPU-triangulated filled polygons.


   .. py:attribute:: _instance
      :type:  FilledPolygonShader2D | None
      :value: None



   .. py:attribute:: _program
      :type:  int | None
      :value: None



   .. py:attribute:: _locs
      :type:  dict[str, int] | None
      :value: None



   .. py:attribute:: _vao
      :type:  int | None
      :value: None



   .. py:attribute:: _vbo
      :type:  int | None
      :value: None



   .. py:attribute:: _texture_cache
      :type:  dict[tuple[str, float], int]


   .. py:method:: get_instance() -> FilledPolygonShader2D
      :classmethod:



   .. py:method:: _init_program()


   .. py:method:: _compile_shader(shader_type: int, path: pathlib.Path) -> int
      :staticmethod:



   .. py:method:: _ensure_vao_vbo()


   .. py:method:: _upload(data: numpy.ndarray)


   .. py:method:: _get_texture_id(texture_path: str) -> int | None


   .. py:method:: _bind_material(material: wolfhece.pyvertexvectors.polygon_pbr_material.PolygonPBRMaterial | None)


   .. py:method:: draw_filled(vbo_data: numpy.ndarray, vertex_count: int, mvp: numpy.ndarray, viewport: tuple[int, int], color: tuple[float, float, float, float], material: wolfhece.pyvertexvectors.polygon_pbr_material.PolygonPBRMaterial | None = None, fill_anim_center: tuple[float, float] = (0.0, 0.0), fill_anim_radius: float = 1.0, fill_anim_start_angle: float = 90.0, anim_phase: float = 0.0, anim_mode: int = 0, cushion_strength: float = 0.0, boundary_pts: numpy.ndarray | None = None, cushion_max_dist: float = 1.0)

      Draw triangles for a filled polygon.



   .. py:method:: destroy()