S60 3rd Edition SDK for Symbian OS
Example Applications Guide |
OpenGL ES Multi Texture Example
1. About this Example
2. Prerequisites
3. Design and Implementation
This example demonstrates multiple dynamic lights without enabling OpenGL ES lightning. The effect has been created using multitexturing.
This example can be extended to any kind of OpenGL ES application, but you might want to look at the other example applications as well for how to use other, different kinds of, OpenGL ES features.
Only classes used by this example are the basic UI framework baseclasses. Open GL ES itself is pure C method call API and doesn't use classes.
To build and run this example you need to have the S60 SDK installed and working correctly on your computer. You also need basic understanding on how to build S60 applications.
To work with this example application you need basic understanding on how to build S60 applications and basic undestanding of how Symbian (or COE) UI and application framework works. Also basic knowledge on OpenGL or OpenGL ES is required if you wish to modify the example.
The example uses two different textures for sphere object. The world texture is loaded from jpeg file. The light texture, used as environmental map, is first rendered to pbuffer surface and then copied to created texture. The final textured object is rendered to window surface. The pointer to pbuffer context have to be passed to the window context during creation because surfaces have their own contexts but they need to share the same texture.
The application has capability NONE as it only needs the rights to execute and access to the screen.
All Open GL ES examples support various screen modes. The examples also support changing the screen size while the application is running. Note that this support must be coded in the application and this code resides in the container's SizeChanged() method.
This inheritance list is sorted roughly, but not completely, alphabetically:
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