S60 3rd Edition SDK for Symbian OS
Example Applications Guide |
OpenGL ES Lens Flare Example
1. About this Example
2. Prerequisites
3. Design and Implementation
This example shows how to create a lens flare effect. Lens flare is the result of bright light refraction in the camera lens.
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 class CLensFlareEffect used in this example is defined in Utils/utils.h and implemented in Utils/utils.cpp. To produce a lens flare effect, this example uses a lens flare vector, which is a 2D vector that goes from the screen’s center to the light’s position. This vector is used to position the different parts of the lens flare.
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.
This inheritance list is sorted roughly, but not completely, alphabetically:
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