| Name | Kind | Description |
| param | relation | |
| Parameter | class | |
| ParamProvider | class | |
| PathManager | class | |
| placement | relation | |
| Placement | class | |
| play | operation | |
| playlist | node | |
| plugID | attribute | Identifier of the Plugin to be used |
| PluginAdapter | class | |
| pnode | node | |
| Posix Threads Abstraction | class view | C++ wrapers for pthreads |
| Prefetch | class | |
| proc | node | |
| proc | attribute | holds the Processor (Render Engine Element) to be built by the current build step |
| ProcessingLayer | package | |
| Processor | class | |
| ProcNode | class | |
| Projector | class | |
| provider | relation |