Ogre::DepthBuffer Class Reference
RenderSystem

An abstract class that contains a depth/stencil buffer. More...

`#include <OgreDepthBuffer.h>`

Inheritance diagram for Ogre::DepthBuffer:
[legend]

List of all members.

## Public Types

enum | PoolId { POOL_NO_DEPTH = 0, POOL_MANUAL_USAGE = 0, POOL_DEFAULT = 1 }

## Public Member Functions

| DepthBuffer (uint16 poolId, uint16 bitDepth, uint32 width, uint32 height, uint32 fsaa, const String &fsaaHint, bool manual)
virtual | ~DepthBuffer ()
void | _setPoolId (uint16 poolId)
virtual uint16 | getPoolId () const
virtual uint16 | getBitDepth () const
virtual uint32 | getWidth () const
virtual uint32 | getHeight () const
virtual uint32 | getFsaa () const
virtual const String & | getFsaaHint () const
bool | isManual () const
virtual bool | isCompatible (RenderTarget *renderTarget) const
| Returns whether the specified RenderTarget is compatible with this DepthBuffer That is, this DepthBuffer can be attached to that RenderTarget.
virtual void | _notifyRenderTargetAttached (RenderTarget *renderTarget)
| Called when a RenderTarget is attaches this DepthBuffer.
virtual void | _notifyRenderTargetDetached (RenderTarget *renderTarget)
| Called when a RenderTarget is detaches from this DepthBuffer.
void * | operator new (size_t sz, const char *file, int line, const char *func)
| operator new, with debug line info
void * | operator new (size_t sz)
void * | operator new (size_t sz, void *ptr)
| placement operator new
void * | operator new[] (size_t sz, const char *file, int line, const char *func)
| array operator new, with debug line info
void * | operator new[] (size_t sz)
void | operator delete (void *ptr)
void | operator delete (void *ptr, void *)
void | operator delete (void *ptr, const char *, int, const char *)
void | operator delete[] (void *ptr)
void | operator delete[] (void *ptr, const char *, int, const char *)

## Protected Types

typedef set< RenderTarget * >::type | RenderTargetSet

## Protected Member Functions

void | detachFromAllRenderTargets ()

## Protected Attributes

uint16 | mPoolId
uint16 | mBitDepth
uint32 | mWidth
uint32 | mHeight
uint32 | mFsaa
String | mFsaaHint
bool | mManual
RenderTargetSet | mAttachedRenderTargets

## Detailed Description

An abstract class that contains a depth/stencil buffer.

Depth Buffers can be attached to render targets. Note we handle Depth & Stencil together. DepthBuffer sharing is handled automatically for you. However, there are times where you want to specifically control depth buffers to achieve certain effects or increase performance. You can control this by hinting Ogre with POOL IDs. Created depth buffers can live in different pools, or alltoghether in the same one. Usually, a depth buffer can only be attached to a RenderTarget only if it's dimensions are bigger and have the same bit depth and same multisample settings. Depth Buffers are created automatically for new RTs when needed, and stored in the pool where the RenderTarget should have drawn from. By default, all RTs have the Id POOL_DEFAULT, which means all depth buffers are stored by default in that pool. By chosing a different Pool Id for a specific RenderTarget, that RT will only retrieve depth buffers from _that_ pool, therefore not conflicting with sharing depth buffers with other RTs (such as shadows maps). Setting an RT to POOL_MANUAL_USAGE means Ogre won't manage the DepthBuffer for you (not recommended) RTs with POOL_NO_DEPTH are very useful when you don't want to create a DepthBuffer for it. You can still manually attach a depth buffer though as internally POOL_NO_DEPTH & POOL_MANUAL_USAGE are handled in the same way.

Behavior is consistent across all render systems, if, and only if, the same RSC flags are set RSC flags that affect this class are: RSC_RTT_SEPARATE_DEPTHBUFFER: The RTT can create a custom depth buffer different from the main depth buffer. This means, an RTT is able to not share it's depth buffer with the main window if it wants to. RSC_RTT_MAIN_DEPTHBUFFER_ATTACHABLE: When RSC_RTT_SEPARATE_DEPTHBUFFER is set, some APIs (ie. OpenGL w/ FBO) don't allow using the main depth buffer for offscreen RTTs. When this flag is set, the depth buffer can be shared between the main window and an RTT. RSC_RTT_DEPTHBUFFER_RESOLUTION_LESSEQUAL: When this flag isn't set, the depth buffer can only be shared across RTTs who have the EXACT same resolution. When it's set, it can be shared with RTTs as long as they have a resolution less or equal than the depth buffer's.

Remarks:
  Design discussion http://www.ogre3d.org/forums/viewtopic.php?f=4&t=53534&p=365582

Author:
  Matias N. Goldberg

Version:
  1.0

Definition at line 81 of file OgreDepthBuffer.h.

## Member Function Documentation

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr | ) | `[inherited]`

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | void * |
| ) |  | `[inherited]`

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |
| ) |  | `[inherited]`

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr | ) | `[inherited]`

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |
| ) |  | `[inherited]`

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func
| ) |  | `[inherited]`

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz | ) | `[inherited]`

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | void * | ptr
| ) |  | `[inherited]`

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func
| ) |  | `[inherited]`

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz | ) | `[inherited]`

Definition at line 90 of file OgreMemoryAllocatedObject.h.

The documentation for this class was generated from the following file:

- OgreDepthBuffer.h

Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:27