OGRE
13.6
Object-Oriented Graphics Rendering Engine
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A 'canvas' which can receive the results of a rendering operation. More...
#include <OgreRenderTarget.h>
Classes | |
struct | FrameStats |
Public Types | |
enum | FrameBuffer { FB_FRONT , FB_BACK , FB_AUTO } |
Public Member Functions | |
RenderTarget () | |
virtual | ~RenderTarget () |
virtual void | _beginUpdate () |
Method for manual management of rendering : fires 'preRenderTargetUpdate' and initialises statistics etc. More... | |
virtual void | _detachDepthBuffer () |
Detaches DepthBuffer without notifying it from the detach. More... | |
virtual void | _endUpdate () |
Method for manual management of rendering - finishes statistics calculation and fires 'postRenderTargetUpdate'. More... | |
virtual void | _notifyCameraRemoved (const Camera *cam) |
Utility method to notify a render target that a camera has been removed, in case it was referring to it as a viewer. More... | |
virtual void | _updateAutoUpdatedViewports (bool updateStatistics=true) |
Method for manual management of rendering - renders only viewports that are auto updated. More... | |
virtual void | _updateViewport (int zorder, bool updateStatistics=true) |
Method for manual management of rendering - renders the given viewport (even if it is not autoupdated) More... | |
virtual void | _updateViewport (Viewport *viewport, bool updateStatistics=true) |
Method for manual management of rendering - renders the given viewport (even if it is not autoupdated) More... | |
virtual void | addListener (RenderTargetListener *listener) |
Add a listener to this RenderTarget which will be called back before & after rendering. More... | |
virtual Viewport * | addViewport (Camera *cam, int ZOrder=0, float left=0.0f, float top=0.0f, float width=1.0f, float height=1.0f) |
Adds a viewport to the rendering target. More... | |
virtual bool | attachDepthBuffer (DepthBuffer *depthBuffer) |
virtual void | copyContentsToMemory (const Box &src, const PixelBox &dst, FrameBuffer buffer=FB_AUTO)=0 |
Copies the current contents of the render target to a pixelbox. More... | |
void | copyContentsToMemory (const PixelBox &dst, FrameBuffer buffer=FB_AUTO) |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More... | |
virtual void | detachDepthBuffer () |
uint | getCustomAttribute (const String &name) |
simplified API for bindings More... | |
virtual void | getCustomAttribute (const String &name, void *pData) |
Retrieve a platform or API-specific piece of information. More... | |
DepthBuffer * | getDepthBuffer () const |
uint16 | getDepthBufferPool () const |
virtual uint | getFSAA () const |
Indicates whether multisampling is performed on rendering and at what level. More... | |
virtual const String & | getFSAAHint () const |
RenderSystem specific FSAA option. See RenderSystem::_createRenderWindow for details. More... | |
virtual uint32 | getHeight (void) const |
void | getMetrics (unsigned int &width, unsigned int &height) |
Retrieve information about the render target. More... | |
virtual const String & | getName (void) const |
Retrieve target's name. More... | |
virtual unsigned short | getNumViewports (void) const |
Returns the number of viewports attached to this target. More... | |
virtual uchar | getPriority () const |
Gets the priority of a render target. More... | |
const FrameStats & | getStatistics (void) const |
Retrieves details of current rendering performance. More... | |
virtual Viewport * | getViewport (unsigned short index) |
Retrieves a pointer to the viewport with the given index. More... | |
virtual Viewport * | getViewportByZOrder (int ZOrder) |
Retrieves a pointer to the viewport with the given Z-order. More... | |
virtual uint32 | getWidth (void) const |
virtual bool | hasViewportWithZOrder (int ZOrder) |
Returns true if and only if a viewport exists at the given Z-order. More... | |
virtual void | insertListener (RenderTargetListener *listener, const unsigned int pos=0) |
same as addListener, but force the position in the vector, so we can control the call order More... | |
virtual bool | isActive () const |
Used to retrieve or set the active state of the render target. More... | |
virtual bool | isAutoUpdated (void) const |
Gets whether this target is automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used. More... | |
virtual bool | isHardwareGammaEnabled () const |
Indicates whether on rendering, linear colour space is converted to sRGB gamma colour space. More... | |
virtual bool | isPrimary (void) const |
Indicates whether this target is the primary window. More... | |
virtual bool | isStereoEnabled (void) const |
Indicates whether stereo is currently enabled for this target. More... | |
virtual void | removeAllListeners (void) |
Removes all listeners from this instance. More... | |
virtual void | removeAllViewports (void) |
Removes all viewports on this target. More... | |
virtual void | removeListener (RenderTargetListener *listener) |
Removes a RenderTargetListener previously registered using addListener. More... | |
virtual void | removeViewport (int ZOrder) |
Removes a viewport at a given Z-order. More... | |
virtual bool | requiresTextureFlipping () const =0 |
void | resetStatistics (void) |
Resets saved frame-rate statistices. More... | |
virtual void | setActive (bool state) |
Used to set the active state of the render target. More... | |
virtual void | setAutoUpdated (bool autoupdate) |
Sets whether this target should be automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used. More... | |
void | setDepthBufferPool (uint16 poolId) |
Sets the pool ID this RenderTarget should query from. More... | |
virtual void | setFSAA (uint fsaa, const String &fsaaHint) |
Set the level of multisample AA to be used if hardware support it. More... | |
virtual void | setPriority (uchar priority) |
Sets the priority of this render target in relation to the others. More... | |
virtual PixelFormat | suggestPixelFormat () const |
Suggests a pixel format to use for extracting the data in this target, when calling copyContentsToMemory. More... | |
virtual void | swapBuffers () |
Swaps the frame buffers to display the next frame. More... | |
virtual void | update (bool swapBuffers=true) |
Tells the target to update it's contents. More... | |
void | writeContentsToFile (const String &filename) |
Writes the current contents of the render target to the named file. More... | |
virtual String | writeContentsToTimestampedFile (const String &filenamePrefix, const String &filenameSuffix) |
Writes the current contents of the render target to the (PREFIX)(time-stamp)(SUFFIX) file. More... | |
A 'canvas' which can receive the results of a rendering operation.
Ogre::RenderTarget::RenderTarget | ( | ) |
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Retrieve target's name.
void Ogre::RenderTarget::getMetrics | ( | unsigned int & | width, |
unsigned int & | height | ||
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Retrieve information about the render target.
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void Ogre::RenderTarget::setDepthBufferPool | ( | uint16 | poolId | ) |
Sets the pool ID this RenderTarget should query from.
Default value is POOL_DEFAULT. Set to POOL_NO_DEPTH to avoid using a DepthBuffer (or manually controlling it)
uint16 Ogre::RenderTarget::getDepthBufferPool | ( | ) | const |
DepthBuffer* Ogre::RenderTarget::getDepthBuffer | ( | ) | const |
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Detaches DepthBuffer without notifying it from the detach.
Useful when called from the DepthBuffer while it iterates through attached RenderTargets (
Reimplemented in Ogre::GLES2FBORenderTexture, Ogre::GLES2FBOMultiRenderTarget, Ogre::GL3PlusFBORenderTexture, Ogre::GL3PlusFBOMultiRenderTarget, Ogre::GLFBORenderTexture, and Ogre::GLFBOMultiRenderTarget.
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Tells the target to update it's contents.
swapBuffers | For targets that support double-buffering, if set to true, the target will immediately swap it's buffers after update. Otherwise, the buffers are not swapped, and you have to call swapBuffers yourself sometime later. You might want to do this on some rendersystems which pause for queued rendering commands to complete before accepting swap buffers calls - so you could do other CPU tasks whilst the queued commands complete. Or, you might do this if you want custom control over your windows, such as for externally created windows. |
Reimplemented in Ogre::D3D9MultiRenderTarget, and Ogre::D3D9RenderTexture.
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Swaps the frame buffers to display the next frame.
Reimplemented in Ogre::VulkanWindow, Ogre::MetalRenderWindow, Ogre::MetalRenderTexture, Ogre::TinyWindow, Ogre::GLES2FBORenderTexture, Ogre::GL3PlusFBORenderTexture, Ogre::GLFBORenderTexture, Ogre::D3D9RenderTexture, Ogre::D3D9RenderWindow, and Ogre::D3D11RenderWindowSwapChainBased.
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Adds a viewport to the rendering target.
cam | The camera from which the viewport contents will be rendered (mandatory) |
ZOrder | The relative order of the viewport with others on the target (allows overlapping viewports i.e. picture-in-picture). Higher Z-orders are on top of lower ones. The actual number is irrelevant, only the relative Z-order matters (you can leave gaps in the numbering) |
left | The relative position of the left of the viewport on the target, as a value between 0 and 1. |
top | The relative position of the top of the viewport on the target, as a value between 0 and 1. |
width | The relative width of the viewport on the target, as a value between 0 and 1. |
height | The relative height of the viewport on the target, as a value between 0 and 1. |
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Returns the number of viewports attached to this target.
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Retrieves a pointer to the viewport with the given index.
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Retrieves a pointer to the viewport with the given Z-order.
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Returns true if and only if a viewport exists at the given Z-order.
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Removes a viewport at a given Z-order.
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Removes all viewports on this target.
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Retrieves details of current rendering performance.
void Ogre::RenderTarget::resetStatistics | ( | void | ) |
Resets saved frame-rate statistices.
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Retrieve a platform or API-specific piece of information.
This method of retrieving information should only be used if you know what you're doing.
Name | Description |
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WINDOW | The native window handle. (X11 Window XID/ HWND / NSWindow*) |
HWND | deprecated (same as WINDOW) |
GL_FBOID | the id of the OpenGL framebuffer object |
GL_MULTISAMPLEFBOID | the id of the OpenGL framebuffer object used for multisampling |
GLFBO | id of the screen OpenGL framebuffer object on iOS |
GLCONTEXT | deprecated, do not use |
FBO | deprecated, do not use |
TARGET | deprecated, do not use |
XDISPLAY | The X Display connection behind that context. |
DISPLAYNAME | The X Server name for the connected display. |
ATOM | The X Atom used in client delete events. |
VIEW | Cocoa NSView* |
NSOPENGLCONTEXT | Cocoa NSOpenGLContext* |
NSOPENGLPIXELFORMAT | Cocoa NSOpenGLPixelFormat* |
name | The name of the attribute. |
pData | Pointer to memory of the right kind of structure to receive the info. |
Reimplemented in Ogre::GLES2FBORenderTexture, Ogre::GLES2FBOMultiRenderTarget, Ogre::GL3PlusFBORenderTexture, Ogre::GL3PlusFBOMultiRenderTarget, Ogre::GLPBRenderTexture, Ogre::GLFBORenderTexture, Ogre::GLFBOMultiRenderTarget, Ogre::GLCopyingRenderTexture, Ogre::MetalRenderWindow, Ogre::MetalRenderTexture, Ogre::MetalMultiRenderTarget, Ogre::D3D9RenderTexture, Ogre::D3D9RenderWindow, Ogre::D3D9MultiRenderTarget, and Ogre::D3D11RenderWindowBase.
simplified API for bindings
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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Add a listener to this RenderTarget which will be called back before & after rendering.
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same as addListener, but force the position in the vector, so we can control the call order
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Removes a RenderTargetListener previously registered using addListener.
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Removes all listeners from this instance.
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Sets the priority of this render target in relation to the others.
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Gets the priority of a render target.
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Used to retrieve or set the active state of the render target.
Reimplemented in Ogre::RenderWindow, and Ogre::D3D9RenderWindow.
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Used to set the active state of the render target.
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Sets whether this target should be automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used.
autoupdate | If true, the render target is updated during the automatic render loop or when Root::_updateAllRenderTargets is called. If false, the target is only updated when its update() method is called explicitly. |
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Gets whether this target is automatically updated if Ogre's rendering loop or Root::_updateAllRenderTargets is being used.
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pure virtual |
Copies the current contents of the render target to a pixelbox.
Implemented in Ogre::VulkanWindow, Ogre::MultiRenderTarget, Ogre::RenderTexture, Ogre::TinyWindow, Ogre::GLWindow, Ogre::MetalRenderWindow, Ogre::D3D9RenderWindow, and Ogre::D3D11RenderWindowBase.
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This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Sometimes the whole rect was used as a source, sometimes the rect with the size equal to the size of destination rect but located in the top left corner of the render target, sometimes the destination rect itself. Use the overload with explicitly specified source and destination boxes instead.
References copyContentsToMemory().
Referenced by copyContentsToMemory().
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Suggests a pixel format to use for extracting the data in this target, when calling copyContentsToMemory.
Reimplemented in Ogre::VulkanWindow, Ogre::MetalRenderWindow, Ogre::D3D9RenderWindow, Ogre::RenderWindow, Ogre::MultiRenderTarget, and Ogre::RenderTexture.
References Ogre::PF_BYTE_RGBA.
void Ogre::RenderTarget::writeContentsToFile | ( | const String & | filename | ) |
Writes the current contents of the render target to the named file.
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Writes the current contents of the render target to the (PREFIX)(time-stamp)(SUFFIX) file.
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pure virtual |
Implemented in Ogre::VulkanWindow, Ogre::VulkanRenderTexture, Ogre::TinyWindow, Ogre::GLWindow, Ogre::GLRenderTexture, Ogre::GLES2FBOMultiRenderTarget, Ogre::GL3PlusFBOMultiRenderTarget, Ogre::GLFBOMultiRenderTarget, Ogre::MetalRenderWindow, Ogre::MetalRenderTexture, Ogre::MetalMultiRenderTarget, Ogre::D3D9RenderTexture, Ogre::D3D9RenderWindow, Ogre::D3D9MultiRenderTarget, Ogre::D3D11RenderTexture, Ogre::D3D11RenderWindowBase, and Ogre::D3D11MultiRenderTarget.
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Utility method to notify a render target that a camera has been removed, in case it was referring to it as a viewer.
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Indicates whether this target is the primary window.
The primary window is special in that it is destroyed when ogre is shut down, and cannot be destroyed directly. This is the case because it holds the context for vertex, index buffers and textures.
Reimplemented in Ogre::RenderWindow.
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Indicates whether stereo is currently enabled for this target.
Default is false.
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Indicates whether on rendering, linear colour space is converted to sRGB gamma colour space.
This is the exact opposite conversion of what is indicated by Texture::isHardwareGammaEnabled, and can only be enabled on creation of the render target. For render windows, it's enabled through the 'gamma' creation misc parameter. For textures, it is enabled through the hwGamma parameter to the create call.
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Indicates whether multisampling is performed on rendering and at what level.
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RenderSystem specific FSAA option. See RenderSystem::_createRenderWindow for details.
Set the level of multisample AA to be used if hardware support it.
This option will be ignored if the hardware does not support it or setting can not be changed on the fly on per-target level.
fsaa | The number of samples |
fsaaHint | RenderSystem specific FSAA option. See RenderSystem::_createRenderWindow for details. |
Reimplemented in Ogre::D3D11RenderWindowSwapChainBased, and Ogre::D3D11RenderWindowBase.
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Method for manual management of rendering : fires 'preRenderTargetUpdate' and initialises statistics etc.
renderTarget->_beginUpdate(); renderTarget->_updateViewport(1); // which is not auto updated renderTarget->_updateViewport(2); // which is not auto updated renderTarget->_updateAutoUpdatedViewports(); renderTarget->_endUpdate(); renderTarget->swapBuffers();Please note that in that case, the zorder may not work as you expect, since you are responsible for calling _updateViewport in the correct order.
Reimplemented in Ogre::D3D9RenderWindow.
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Method for manual management of rendering - renders the given viewport (even if it is not autoupdated)
zorder | The zorder of the viewport to update. |
updateStatistics | Whether you want to update statistics or not. |
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Method for manual management of rendering - renders the given viewport (even if it is not autoupdated)
viewport | The viewport you want to update, it must be bound to the rendertarget. |
updateStatistics | Whether you want to update statistics or not. |
Reimplemented in Ogre::D3D9RenderWindow.
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Method for manual management of rendering - renders only viewports that are auto updated.
updateStatistics | Whether you want to update statistics or not. |
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Method for manual management of rendering - finishes statistics calculation and fires 'postRenderTargetUpdate'.
Reimplemented in Ogre::D3D9RenderWindow.