Add initial prototype.

3-mid/opengl/source/lean/model/opengl-model-any.ads

@@ -0,0 +1,58 @@
+with
+     openGL.Geometry;
+
+
+package openGL.Model.any
+--
+--  Provides a general 3D model.
+--
+--  This model is largely used by the IO importers of various model formats (ie collada, wavefront, etc).
+--
+is
+   type Item is new Model.item with private;
+   type View is access all Item'Class;
+
+
+   ---------
+   --- Forge
+   --
+
+   function new_Model (Model            : in asset_Name;
+                       Texture          : in asset_Name;
+                       Texture_is_lucid : in Boolean) return openGL.Model.any.view;
+
+   --------------
+   --- Attributes
+   --
+
+   function model_Name (Self : in Item) return asset_Name;
+
+   overriding
+   function to_GL_Geometries (Self : access Item;   Textures : access Texture.name_Map_of_texture'Class;
+                                                    Fonts    : in     Font.font_id_Map_of_font) return Geometry.views;
+   --
+   --  Raises unsupported_model_Format when the model is not a :
+   --     - wavefront       '.obj'
+   --     - collada         '.dae'
+   --     - lat_long_radius '.tab'
+
+   unsupported_model_Format : exception;
+
+
+
+private
+
+   type Item is new Model.item with
+      record
+         Model             : asset_Name := null_Asset;   -- A wavefront '.obj' or collada '.dae' file.   -- TODO: Rename to 'model_Name'.
+
+         Texture           : asset_Name := null_Asset;   -- The models texture image.
+         has_lucid_Texture : Boolean    := False;
+
+         Geometry          : openGL.Geometry.view;
+      end record;
+
+   procedure build_GL_Geometries (Self : in out Item);
+
+
+end openGL.Model.any;