====== Initializing tree graphics ======

To load the textures and initialize the vertex and index buffers of a ''CTree'' object, call ''CTreeRI::InitGfx()''. Note the hierarchy of the tree classes:

{{sdk:diagram_sdk_render_policies.jpeg?650}}

  * ''CCore'' is defined in the Core library.

  * ''CTree'' is used as an alias for ''CCore'' in ''Include/SpeedTree/Forest/Forest.h''.

  * ''CTreeRI'' is a templated class in need of platform-specific rendering policies.

  * "Render Policies" represents the render policies (textures, shaders, vertex buffers, etc) for any of the supported SpeedTree platforms.

  * ''CTreeRender'' is defined in each of the platform's renderer header files (e.g. OpenGLRenderer.h) and is a ''CTreeRI'' object with the appropriate render policies passed in as template parameters.


The typical order for initializing a tree object is:

  - Load an STSDK file or memory block into a ''CTreeRI'' object using ''CTreeRI::LoadTree()'' (''CTreeRI'' is derived from ''CCore'').\\ \\
  - Call ''CTreeRI::InitGfx()'' of that tree object so that it will be ready to render using the Render Interface library.


**Note:** The source files ''MyPopulate.cpp/h'' give an example of how to load trees and initialize their graphics. Specifically, see ''CMyPopulate::LoadBaseTree()'' and ''CMyPopulate::InitBaseTreeGraphics()''.