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:

In reference to the above diagram:

• 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:

1. Load an .stsdk file or memory block into a CTreeRI object using CTreeRI::LoadTree() (CTreeRI is derived from CCore).

2. 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().