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219 lines
9.8 KiB
ReStructuredText
219 lines
9.8 KiB
ReStructuredText
:github_url: hide
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.. _class_ImmediateMesh:
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ImmediateMesh
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=============
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**繼承：** :ref:`Mesh<class_Mesh>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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為手動建立幾何體，而優化的網格。
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.. rst-class:: classref-introduction-group
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說明
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----
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A mesh type optimized for creating geometry manually, similar to OpenGL 1.x immediate mode.
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Here's a sample on how to generate a triangular face:
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.. tabs::
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.. code-tab:: gdscript
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var mesh = ImmediateMesh.new()
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mesh.surface_begin(Mesh.PRIMITIVE_TRIANGLES)
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mesh.surface_add_vertex(Vector3.LEFT)
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mesh.surface_add_vertex(Vector3.FORWARD)
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mesh.surface_add_vertex(Vector3.ZERO)
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mesh.surface_end()
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.. code-tab:: csharp
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var mesh = new ImmediateMesh();
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mesh.SurfaceBegin(Mesh.PrimitiveType.Triangles);
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mesh.SurfaceAddVertex(Vector3.Left);
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mesh.SurfaceAddVertex(Vector3.Forward);
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mesh.SurfaceAddVertex(Vector3.Zero);
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mesh.SurfaceEnd();
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\ **Note:** Generating complex geometries with **ImmediateMesh** is highly inefficient. Instead, it is designed to generate simple geometry that changes often.
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.. rst-class:: classref-introduction-group
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教學
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----
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- :doc:`使用 ImmediateMesh <../tutorials/3d/procedural_geometry/immediatemesh>`
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.. rst-class:: classref-reftable-group
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方法
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----
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.. table::
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:widths: auto
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`clear_surfaces<class_ImmediateMesh_method_clear_surfaces>`\ (\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_add_vertex<class_ImmediateMesh_method_surface_add_vertex>`\ (\ vertex\: :ref:`Vector3<class_Vector3>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_add_vertex_2d<class_ImmediateMesh_method_surface_add_vertex_2d>`\ (\ vertex\: :ref:`Vector2<class_Vector2>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_begin<class_ImmediateMesh_method_surface_begin>`\ (\ primitive\: :ref:`PrimitiveType<enum_Mesh_PrimitiveType>`, material\: :ref:`Material<class_Material>` = null\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_end<class_ImmediateMesh_method_surface_end>`\ (\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_set_color<class_ImmediateMesh_method_surface_set_color>`\ (\ color\: :ref:`Color<class_Color>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_set_normal<class_ImmediateMesh_method_surface_set_normal>`\ (\ normal\: :ref:`Vector3<class_Vector3>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_set_tangent<class_ImmediateMesh_method_surface_set_tangent>`\ (\ tangent\: :ref:`Plane<class_Plane>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_set_uv<class_ImmediateMesh_method_surface_set_uv>`\ (\ uv\: :ref:`Vector2<class_Vector2>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`surface_set_uv2<class_ImmediateMesh_method_surface_set_uv2>`\ (\ uv2\: :ref:`Vector2<class_Vector2>`\ ) |
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+--------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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方法說明
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--------
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.. _class_ImmediateMesh_method_clear_surfaces:
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.. rst-class:: classref-method
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|void| **clear_surfaces**\ (\ ) :ref:`🔗<class_ImmediateMesh_method_clear_surfaces>`
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清除所有表面。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_add_vertex:
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.. rst-class:: classref-method
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|void| **surface_add_vertex**\ (\ vertex\: :ref:`Vector3<class_Vector3>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_add_vertex>`
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使用先前設定的目前屬性，新增一個 3D 頂點。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_add_vertex_2d:
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.. rst-class:: classref-method
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|void| **surface_add_vertex_2d**\ (\ vertex\: :ref:`Vector2<class_Vector2>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_add_vertex_2d>`
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使用先前設定的目前屬性，新增一個 2D 頂點。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_begin:
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.. rst-class:: classref-method
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|void| **surface_begin**\ (\ primitive\: :ref:`PrimitiveType<enum_Mesh_PrimitiveType>`, material\: :ref:`Material<class_Material>` = null\ ) :ref:`🔗<class_ImmediateMesh_method_surface_begin>`
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開始一個新的表面。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_end:
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.. rst-class:: classref-method
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|void| **surface_end**\ (\ ) :ref:`🔗<class_ImmediateMesh_method_surface_end>`
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結束並提交目前表面。請注意，在該函式被呼叫之前，建立的表面將不可見。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_set_color:
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.. rst-class:: classref-method
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|void| **surface_set_color**\ (\ color\: :ref:`Color<class_Color>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_set_color>`
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設定將與下一個頂點一起推送的顏色屬性。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_set_normal:
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.. rst-class:: classref-method
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|void| **surface_set_normal**\ (\ normal\: :ref:`Vector3<class_Vector3>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_set_normal>`
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設定將與下一個頂點一起推送的法線屬性。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_set_tangent:
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.. rst-class:: classref-method
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|void| **surface_set_tangent**\ (\ tangent\: :ref:`Plane<class_Plane>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_set_tangent>`
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Set the tangent attribute that will be pushed with the next vertex.
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\ **Note:** Even though ``tangent`` is a :ref:`Plane<class_Plane>`, it does not directly represent the tangent plane. Its :ref:`Plane.x<class_Plane_property_x>`, :ref:`Plane.y<class_Plane_property_y>`, and :ref:`Plane.z<class_Plane_property_z>` represent the tangent vector and :ref:`Plane.d<class_Plane_property_d>` should be either ``-1`` or ``1``. See also :ref:`Mesh.ARRAY_TANGENT<class_Mesh_constant_ARRAY_TANGENT>`.
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_set_uv:
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.. rst-class:: classref-method
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|void| **surface_set_uv**\ (\ uv\: :ref:`Vector2<class_Vector2>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_set_uv>`
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設定將與下一個頂點一起推送的 UV 屬性。
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.. rst-class:: classref-item-separator
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----
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.. _class_ImmediateMesh_method_surface_set_uv2:
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.. rst-class:: classref-method
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|void| **surface_set_uv2**\ (\ uv2\: :ref:`Vector2<class_Vector2>`\ ) :ref:`🔗<class_ImmediateMesh_method_surface_set_uv2>`
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設定將與下一個頂點一起推送的 UV2 屬性。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法沒有副作用。不會修改該實例的任何成員變數。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了這裡描述的參數外，還可以接受任意數量的參數。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
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.. |static| replace:: :abbr:`static (本方法無需實例即可呼叫，因此可以直接使用類別名稱呼叫。)`
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.. |operator| replace:: :abbr:`operator (本方法描述將本型別作為左運算元時可用的有效運算子。)`
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.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
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.. |void| replace:: :abbr:`void (無回傳值。)`
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