Implementation of NULL as a rendering system. More...

#include <OgreNULLRenderSystem.h>

Inheritance diagram for Ogre::NULLRenderSystem:

Public Member Functions
	NULLRenderSystem ()

	~NULLRenderSystem () override

void	_beginFrame () override
	Signifies the beginning of a frame, i.e. More...

void	_convertProjectionMatrix (const Matrix4 &matrix, Matrix4 &dest) override
	Converts a uniform projection matrix to suitable for this render system. More...

Window *	_createRenderWindow (const String &name, uint32 width, uint32 height, bool fullScreen, const NameValuePairList *miscParams=0) override
	Creates a new rendering window. More...

void	_dispatch (const HlmsComputePso &pso) override

void	_endFrame () override
	Ends rendering of a frame to the current viewport. More...

Window *	_initialise (bool autoCreateWindow, const String &windowTitle="OGRE Render Window") override
	Start up the renderer using the settings selected (Or the defaults if none have been selected). More...

void	_render (const CbDrawCallIndexed *cmd) override
	Renders the VAO. Assumes _setVertexArrayObject has already been called. More...

void	_render (const CbDrawCallStrip *cmd) override

void	_render (const v1::CbDrawCallIndexed *cmd) override
	Renders a V1 RenderOperation. Assumes _setRenderOperation has already been called. More...

void	_render (const v1::CbDrawCallStrip *cmd) override

void	_renderEmulated (const CbDrawCallIndexed *cmd) override

void	_renderEmulated (const CbDrawCallStrip *cmd) override

void	_setComputePso (const HlmsComputePso *pso) override
	Unlike _setPipelineStateObject, the RenderSystem will check if the PSO has changed to avoid redundant state changes (since it's hard to do it at Hlms level) More...

void	_setCurrentDeviceFromTexture (TextureGpu *texture) override
	Because Ogre doesn't (yet) have the notion of a 'device' or 'GL context', this function lets Ogre know which device should be used by providing a texture. More...

void	_setHlmsSamplerblock (uint8 texUnit, const HlmsSamplerblock *Samplerblock) override
	See HlmsSamplerblock. More...

void	_setIndirectBuffer (IndirectBufferPacked *indirectBuffer) override

void	_setPipelineStateObject (const HlmsPso *pso) override

void	_setPointParameters (Real size, bool attenuationEnabled, Real constant, Real linear, Real quadratic, Real minSize, Real maxSize) override
	Sets the size of points and how they are attenuated with distance. More...

void	_setPointSpritesEnabled (bool enabled) override
	Sets whether or not rendering points using OT_POINT_LIST will render point sprites (textured quads) or plain points. More...

void	_setProjectionMatrix (const Matrix4 &m) override
	Sets the projection transform matrix. More...

void	_setRenderOperation (const v1::CbRenderOp *cmd) override

void	_setSamplers (uint32 slotStart, const DescriptorSetSampler *set) override

void	_setSamplersCS (uint32 slotStart, const DescriptorSetSampler *set) override

void	_setSurfaceParams (const ColourValue &ambient, const ColourValue &diffuse, const ColourValue &specular, const ColourValue &emissive, Real shininess, TrackVertexColourType tracking=TVC_NONE) override
	Sets the surface properties to be used for future rendering. More...

void	_setTexture (size_t unit, TextureGpu *texPtr, bool bDepthReadOnly) override
	Sets the texture to bind to a given texture unit. More...

void	_setTextureBlendMode (size_t unit, const LayerBlendModeEx &bm) override
	Sets the texture blend modes from a TextureUnitState record. More...

void	_setTextureCoordCalculation (size_t unit, TexCoordCalcMethod m, const Frustum *frustum=0) override
	Sets a method for automatically calculating texture coordinates for a stage. More...

void	_setTextureMatrix (size_t unit, const Matrix4 &xform) override
	Sets the texture coordinate transformation matrix for a texture unit. More...

void	_setTextures (uint32 slotStart, const DescriptorSetTexture *set, uint32 hazardousTexIdx) override

void	_setTextures (uint32 slotStart, const DescriptorSetTexture2 *set) override

void	_setTexturesCS (uint32 slotStart, const DescriptorSetTexture *set) override

void	_setTexturesCS (uint32 slotStart, const DescriptorSetTexture2 *set) override

void	_setUavCS (uint32 slotStart, const DescriptorSetUav *set) override

void	_setVertexArrayObject (const VertexArrayObject *vao) override
	Part of the low level rendering interface. More...

void	_setViewMatrix (const Matrix4 &m) override
	Sets the view transform matrix. More...

void	_setWorldMatrix (const Matrix4 &m) override
	Sets the world transform matrix. More...

void	_useLights (const LightList &lights, unsigned short limit) override
	Tells the rendersystem to use the attached set of lights (and no others) up to the number specified (this allows the same list to be used with different count limits) More...

void	beginGPUSampleProfile (const String &name, uint32 *hashCache) override

void	beginProfileEvent (const String &eventName) override
	This marks the beginning of an event for GPU profiling. More...

void	bindGpuProgramParameters (GpuProgramType gptype, GpuProgramParametersSharedPtr params, uint16 variabilityMask) override
	Bind Gpu program parameters. More...

void	bindGpuProgramPassIterationParameters (GpuProgramType gptype) override
	Only binds Gpu program parameters used for passes that have more than one iteration rendering. More...

void	clearFrameBuffer (RenderPassDescriptor renderPassDesc, TextureGpu anyTarget, uint8 mipLevel) override
	Immediately clears the whole frame buffer on the selected RenderPassDescriptor. More...

HardwareOcclusionQuery *	createHardwareOcclusionQuery () override
	Create an object for performing hardware occlusion queries. More...

RenderPassDescriptor *	createRenderPassDescriptor () override

RenderSystemCapabilities *	createRenderSystemCapabilities () const override
	Query the real capabilities of the GPU and driver in the RenderSystem. More...

void	deinitGPUProfiling () override

void	endGPUSampleProfile (const String &name) override

void	endProfileEvent () override
	Ends the currently active GPU profiling event. More...

void	flushCommands () override

VertexElementType	getColourVertexElementType () const override
	Get the native VertexElementType for a compact 32-bit colour value for this rendersystem. More...

ConfigOptionMap &	getConfigOptions () override
	Returns the details of this API's configuration options. More...

unsigned int	getDisplayMonitorCount () const override
	Gets the number of display monitors. More...

String	getErrorDescription (long errorNumber) const override
	Returns a description of an error code. More...

const String &	getFriendlyName () const override
	Returns the friendly name of the render system. More...

Real	getHorizontalTexelOffset () override
	Returns the horizontal texel offset value required for mapping texel origins to pixel origins in this rendersystem. More...

Real	getMaximumDepthInputValue () override
	Gets the maximum (farthest) depth value to be used when rendering using identity transforms. More...

Real	getMinimumDepthInputValue () override
	Gets the minimum (closest) depth value to be used when rendering using identity transforms. More...

const String &	getName () const override
	Returns the name of the rendering system. More...

const PixelFormatToShaderType *	getPixelFormatToShaderType () const override

Real	getVerticalTexelOffset () override
	Returns the vertical texel offset value required for mapping texel origins to pixel origins in this rendersystem. More...

bool	hasAnisotropicMipMapFilter () const override
	Determines if the system has anisotropic mip map filter support. More...

void	initGPUProfiling () override

void	initialiseFromRenderSystemCapabilities (RenderSystemCapabilities caps, Window primary) override
	Initialize the render system from the capabilities. More...

void	markProfileEvent (const String &event) override
	Marks an instantaneous event for graphics profilers. More...

void	postExtraThreadsStarted () override

void	preExtraThreadsStarted () override
	Tell the rendersystem to perform any prep tasks it needs to directly before other threads which might access the rendering API are registered. More...

void	registerThread () override
	Register the an additional thread which may make calls to rendersystem-related objects. More...

void	reinitialise () override
	Restart the renderer (normally following a change in settings). More...

void	setClipPlanesImpl (const PlaneList &clipPlanes) override
	Internal method used to set the underlying clip planes when needed. More...

void	setConfigOption (const String &name, const String &value) override
	Sets an option for this API. More...

void	shutdown () override
	Shutdown the renderer and cleanup resources. More...

void	unregisterThread () override
	Unregister an additional thread which may make calls to rendersystem-related objects. More...

String	validateConfigOptions () override
	Validates the options set for the rendering system, returning a message if there are problems. More...

Public Member Functions inherited from Ogre::RenderSystem
	RenderSystem ()
	Default Constructor. More...

virtual	~RenderSystem ()
	Destructor. More...

void	_addMetrics (const RenderingMetrics &newMetrics)

virtual void	_beginFrameOnce ()
	Signifies the beginning of the main frame. More...

void	_cleanupDepthBuffers ()

virtual void	_clearStateAndFlushCommandBuffer ()
	On D3D11 calls ClearState followed by Flush(). More...

virtual void	_convertOpenVrProjectionMatrix (const Matrix4 &matrix, Matrix4 &dest)
	Converts an OpenVR projection matrix to have the proper depth range and reverse Z settings. More...

virtual bool	_createRenderWindows (const RenderWindowDescriptionList &renderWindowDescriptions, WindowList &createdWindows)
	Creates multiple rendering windows. More...

void	_dereferenceSharedDepthBuffer (TextureGpu *depthBuffer)
	Releases the reference count on a shared depth buffer. More...

virtual void	_descriptorSetSamplerCreated (DescriptorSetSampler *newSet)

virtual void	_descriptorSetSamplerDestroyed (DescriptorSetSampler *set)

virtual void	_descriptorSetTexture2Created (DescriptorSetTexture2 *newSet)

virtual void	_descriptorSetTexture2Destroyed (DescriptorSetTexture2 *set)

virtual void	_descriptorSetTextureCreated (DescriptorSetTexture *newSet)

virtual void	_descriptorSetTextureDestroyed (DescriptorSetTexture *set)

virtual void	_descriptorSetUavCreated (DescriptorSetUav *newSet)

virtual void	_descriptorSetUavDestroyed (DescriptorSetUav *set)

virtual void	_endFrameOnce ()
	Called once per frame, regardless of how many active workspaces there are. More...

Viewport &	_getCurrentRenderViewport ()

virtual const String &	_getDefaultViewportMaterialScheme () const
	Returns the default material scheme used by the render system. More...

virtual void	_hlmsBlendblockCreated (HlmsBlendblock *newBlock)

virtual void	_hlmsBlendblockDestroyed (HlmsBlendblock *block)

virtual void	_hlmsComputePipelineStateObjectCreated (HlmsComputePso *newPso)

virtual void	_hlmsComputePipelineStateObjectDestroyed (HlmsComputePso *newPso)

virtual void	_hlmsMacroblockCreated (HlmsMacroblock *newBlock)

virtual void	_hlmsMacroblockDestroyed (HlmsMacroblock *block)

virtual void	_hlmsPipelineStateObjectCreated (HlmsPso *newPso)

virtual void	_hlmsPipelineStateObjectDestroyed (HlmsPso *pso)

virtual void	_hlmsSamplerblockCreated (HlmsSamplerblock *newBlock)

virtual void	_hlmsSamplerblockDestroyed (HlmsSamplerblock *block)

virtual void	_makeRsProjectionMatrix (const Matrix4 &matrix, Matrix4 &dest, Real nearPlane, Real farPlane, ProjectionType projectionType)
	Takes a regular source projection matrix in range [-1; 1] and converts it to a projection matrix in 'dest' with reverse Z range [1; 0]. More...

virtual RenderSystemContext *	_pauseFrame ()
	Pause rendering for a frame. More...

virtual void	_render (const v1::RenderOperation &op)
	Render something to the active viewport. More...

virtual void	_renderEmulatedNoBaseInstance (const CbDrawCallIndexed *cmd)

virtual void	_renderEmulatedNoBaseInstance (const CbDrawCallStrip *cmd)

virtual void	_renderNoBaseInstance (const v1::CbDrawCallIndexed *cmd)

virtual void	_renderNoBaseInstance (const v1::CbDrawCallStrip *cmd)

void	_resetMetrics ()

virtual void	_resumeFrame (RenderSystemContext *context)
	Resume rendering for a frame. More...

virtual void	_setBindingType (TextureUnitState::BindingType bindigType)
	Set texture unit binding type. More...

virtual void	_setGeometryTexture (size_t unit, TextureGpu *tex)

virtual void	_setTessellationDomainTexture (size_t unit, TextureGpu *tex)

virtual void	_setTessellationHullTexture (size_t unit, TextureGpu *tex)

virtual void	_setTextureProjectionRelativeTo (bool enabled, const Vector3 &pos)
	Notify the rendersystem that it should adjust texture projection to be relative to a different origin. More...

virtual void	_setTextureUnitSettings (size_t texUnit, TextureUnitState &tl)
	Utility function for setting all the properties of a texture unit at once. More...

virtual void	_setVertexTexture (size_t unit, TextureGpu *tex)
	Binds a texture to a vertex, geometry, compute, tessellation hull or tessellation domain sampler. More...

virtual void	_setWorldMatrices (const Matrix4 *m, unsigned short count)
	Sets multiple world matrices (vertex blending). More...

virtual void	_startLegacyV1Rendering ()
	May override the current VertexArrayObject! More...

void	_update ()
	Called once per frame, regardless of how many active workspaces there are. More...

virtual void	addClipPlane (const Plane &p)
	Add a user clipping plane. More...

virtual void	addClipPlane (Real A, Real B, Real C, Real D)
	Add a user clipping plane. More...

virtual void	addListener (Listener *l)
	Adds a listener to the custom events that this render system can raise. More...

virtual bool	areFixedFunctionLightsInViewSpace () const
	Are fixed-function lights provided in view space? Affects optimisation. More...

virtual void	beginRenderPassDescriptor (RenderPassDescriptor desc, TextureGpu anyTarget, uint8 mipLevel, const Vector4 viewportSizes, const Vector4 scissors, uint32 numViewports, bool overlaysEnabled, bool warnIfRtvWasFlushed)
	When the descriptor is set to Load clear, two possible things may happen: More...

virtual bool	checkExtension (const String &ext) const
	Checks for the presense of an API-specific extension (eg. Vulkan, GL) More...

virtual void	compositorWorkspaceBegin (CompositorWorkspace *workspace, const bool forceBeginFrame)
	See RenderSystem::updateCompositorManager. More...

virtual void	compositorWorkspaceEnd (CompositorWorkspace *workspace, const bool forceEndFrame)
	See RenderSystem::updateCompositorManager. More...

virtual void	compositorWorkspaceUpdate (CompositorWorkspace *workspace)
	See RenderSystem::updateCompositorManager. More...

virtual void	convertColourValue (const ColourValue &colour, uint32 *pDest)
	Generates a packed data version of the passed in ColourValue suitable for use as with this RenderSystem. More...

virtual void	debugAnnotationPop ()

virtual void	debugAnnotationPush (const String &event)
	Specifically meant to mark passes in RenderDoc. More...

virtual void	destroyHardwareOcclusionQuery (HardwareOcclusionQuery *hq)
	Destroy a hardware occlusion query object. More...

void	destroyRenderPassDescriptor (RenderPassDescriptor *renderPassDesc)

virtual void	destroyRenderWindow (Window *window)
	Destroys a render window. More...

virtual void	endCopyEncoder ()
	Required when caller will soon start analyzing barriers (e.g. More...

virtual void	endGpuDebuggerFrameCapture (Window *window, const bool bDiscard=false)
	See RenderSystem::startGpuDebuggerFrameCapture Call this function when you're done capturing a frame. More...

virtual void	endRenderPassDescriptor ()

virtual void	executeRenderPassDescriptorDelayedActions ()
	Metal needs to delay RenderCommand creation to the last minute, because we can't issue blit operations (e.g. More...

virtual void	executeResourceTransition (const ResourceTransitionArray &rstCollection)

BarrierSolver &	getBarrierSolver ()

BoundUav	getBoundUav (size_t slot) const

const RenderSystemCapabilities *	getCapabilities () const
	Gets the capabilities of the render system. More...

RenderPassDescriptor *	getCurrentPassDescriptor ()

Viewport *	getCurrentRenderViewports ()

virtual void	getCustomAttribute (const String &name, void *pData)
	Gets a custom (maybe platform-specific) attribute. More...

bool	getDebugShaders () const

virtual TextureGpu *	getDepthBufferFor (TextureGpu *colourTexture, uint16 poolId, bool preferDepthTexture, PixelFormatGpu depthBufferFormat)

virtual const DriverVersion &	getDriverVersion () const
	Returns the driver version. More...

v1::HardwareVertexBufferSharedPtr	getGlobalInstanceVertexBuffer () const
	Returns the global instance vertex buffer. More...

v1::VertexDeclaration *	getGlobalInstanceVertexBufferVertexDeclaration () const
	Gets vertex declaration for the global vertex buffer for the global instancing. More...

size_t	getGlobalNumberOfInstances () const
	Gets the global number of instances. More...

bool	getInvertedClipSpaceY () const
	+Y is downwards in NDC (Normalized Device Coordinates). Only Vulkan has this problem. More...

virtual bool	getInvertVertexWinding () const
	Indicates whether or not the vertex windings set will be inverted for the current render (e.g. More...

uint32	getMaxBoundViewports ()

const RenderingMetrics &	getMetrics () const

RenderSystemCapabilities *	getMutableCapabilities ()
	Get a pointer to the current capabilities being used by the RenderSystem. More...

uint16	getNativeShadingLanguageVersion () const
	Gets the native shading language version for this render system. More...

virtual size_t	getNumPriorityConfigOptions () const
	Number of priority config options in RenderSystem::getPriorityConfigOption. More...

virtual const char *	getPriorityConfigOption (size_t idx) const
	Some options depend on other options. More...

RENDERDOC_API_1_4_1 *	getRenderDocApi ()
	Returns the RenderDoc API handle in case you want to do more advanced functionality than what we expose. More...

virtual const StringVector &	getRenderSystemEvents () const
	Gets a list of the rendersystem specific events that this rendersystem can raise. More...

virtual Real	getRSDepthRange () const
	OpenGL depth is in range [-1;1] so it returns 2.0f; D3D11 & Metal are in range [0;1] so it returns 1.0f;. More...

const StencilParams &	getStencilBufferParams () const

TextureGpuManager *	getTextureGpuManager () const

VaoManager *	getVaoManager () const

bool	getWBufferEnabled () const
	Returns true if the renderer will try to use W-buffers when available. More...

virtual bool	isGpuProgramBound (GpuProgramType gptype)
	Returns whether or not a Gpu program of the given type is currently bound. More...

bool	isReverseDepth () const

virtual bool	isSameLayout (ResourceLayout::Layout a, ResourceLayout::Layout b, const TextureGpu *texture, bool bIsDebugCheck) const
	Returns true if 'a' and 'b' internally map to the same layout and should be considered equivalent for a given texture. More...

virtual bool	isStaticBufferLockable () const

bool	loadRenderDocApi ()
	Explicitly loads RenderDoc. More...

void	queueBindUAVs (const DescriptorSetUav *descSetUav)
	Queues the binding of an UAV to the binding point/slot. More...

virtual void	removeListener (Listener *l)
	Remove a listener to the custom events that this render system can raise. More...

virtual void	resetClipPlanes ()
	Clears the user clipping region. More...

virtual void	setClipPlanes (const PlaneList &clipPlanes)
	Sets the user clipping region. More...

virtual void	setCurrentPassIterationCount (const size_t count)
	set the current multi pass count value. More...

void	setDebugShaders (bool bDebugShaders)
	Instructs the RenderSystem to compile shaders without optimizations and with debug information, for easier debugging on APIs that support it. More...

virtual void	setDeriveDepthBias (bool derive, float baseValue=0.0f, float multiplier=0.0f, float slopeScale=0.0f)
	Tell the render system whether to derive a depth bias on its own based on the values passed to it in setCurrentPassIterationCount. More...

virtual bool	setDrawBuffer (ColourBufferType colourBuffer)
	Sets the colour buffer that the render system will to draw. More...

void	setGlobalInstanceVertexBuffer (const v1::HardwareVertexBufferSharedPtr &val)
	Sets the global instance vertex buffer. More...

void	setGlobalInstanceVertexBufferVertexDeclaration (v1::VertexDeclaration *val)
	Sets vertex declaration for the global vertex buffer for the global instancing. More...

void	setGlobalNumberOfInstances (const size_t val)
	Sets the global number of instances. More...

void	setInvertVertexWinding (bool invert)
	Sets whether or not vertex windings set should be inverted; this can be important for rendering reflections. More...

void	setMetricsRecordingEnabled (bool bEnable)

virtual void	setStencilBufferParams (uint32 refValue, const StencilParams &stencilParams)
	This method allows you to set all the stencil buffer parameters in one call. More...

void	setUavStartingSlot (uint32 startingSlot)
	In Direct3D11, UAV & RenderTargets share the same slots. More...

void	setWBufferEnabled (bool enabled)
	Sets whether or not W-buffers are enabled if they are available for this renderer. More...

virtual bool	startGpuDebuggerFrameCapture (Window *window)
	Programmatically performs a GPU capture when attached to a GPU debugger like RenderDoc or Metal Graphics Debugger. More...

virtual bool	supportsMultithreadedShaderCompliation () const
	Returns true if RenderSystem supports multithreaded shader and PSO compilation. More...

virtual void	updateCompositorManager (CompositorManager2 *compositorManager)
	This gives the renderer a chance to perform the compositor update in a special way. More...

virtual void	useCustomRenderSystemCapabilities (RenderSystemCapabilities *capabilities)
	Force the render system to use the special capabilities. More...

virtual bool	validateDevice (bool forceDeviceElection=false)
	Some render systems have moments when GPU device is temporarily unavailable, for example when D3D11 device is lost, or when iOS app is in background, etc. More...

virtual SampleDescription	validateSampleDescription (const SampleDescription &sampleDesc, PixelFormatGpu format, uint32 textureFlags, uint32 depthTextureFlags)
	Returns supported sample description for requested FSAA mode, with graceful downgrading. More...

Additional Inherited Members
Static Public Member Functions inherited from Ogre::RenderSystem
static void	addSharedListener (Listener *listener)
	Sets shared listener. More...

static void	fireSharedEvent (const String &name, const NameValuePairList *params=0)

static void	removeSharedListener (Listener *listener)
	Remove shared listener to the custom events that this render system can raise. More...

static CompareFunction	reverseCompareFunction (CompareFunction depthFunc)
	Reverts the compare order e.g. More...

Detailed Description

Implementation of NULL as a rendering system.

Constructor & Destructor Documentation

◆ NULLRenderSystem()

Ogre::NULLRenderSystem::NULLRenderSystem ( )

◆ ~NULLRenderSystem()

Ogre::NULLRenderSystem::~NULLRenderSystem ( )

override

Member Function Documentation

◆ _beginFrame()

void Ogre::NULLRenderSystem::_beginFrame ( )

overridevirtual

Signifies the beginning of a frame, i.e.

the start of rendering on a single viewport. Will occur several times per complete frame if multiple viewports exist.

Implements Ogre::RenderSystem.

◆ _convertProjectionMatrix()

void Ogre::NULLRenderSystem::_convertProjectionMatrix	(	const Matrix4 &	matrix,
		Matrix4 &	dest
	)

inlineoverridevirtual

Converts a uniform projection matrix to suitable for this render system.

Remarks: Because different APIs have different requirements (some incompatible) for the projection matrix, this method allows each to implement their own correctly and pass back a generic OGRE matrix for storage in the engine.

Reimplemented from Ogre::RenderSystem.

◆ _createRenderWindow()

Window* Ogre::NULLRenderSystem::_createRenderWindow	(	const String &	name,
		uint32	width,
		uint32	height,
		bool	fullScreen,
		const NameValuePairList *	miscParams = `0`
	)

overridevirtual

Creates a new rendering window.

Remarks: This method creates a new rendering window as specified by the paramteters. The rendering system could be responible for only a single window (e.g. in the case of a game), or could be in charge of multiple ones (in the case of a level editor). The option to create the window as a child of another is therefore given. This method will create an appropriate subclass of RenderWindow depending on the API and platform implementation.

: After creation, this window can be retrieved using getRenderTarget().

Parameters

name The name of the window. Used in other methods later like setRenderTarget and getRenderTarget.

width The width of the new window.

height The height of the new window.

fullScreen Specify true to make the window full screen without borders, title bar or menu bar.

miscParams

A NameValuePairList describing the other parameters for the new rendering window. Options are case sensitive. Unrecognised parameters will be ignored silently. These values might be platform dependent, but these are present for all platforms unless indicated otherwise:

Key	Type/Values	Default	Description	Notes
title	Any string	RenderTarget name	The title of the window that will appear in the title bar
colourDepth	16, 32	Desktop depth	Colour depth of the resulting rendering window; only applies if fullScreen	Win32 Specific
left	Positive integers	Centred	Screen x coordinate from left
top	Positive integers	Centred	Screen y coordinate from left
depthBuffer	true, false	true	Use depth buffer	DirectX9 specific
externalWindowHandle	Win32: HWND as integer GLX: poslong:posint:poslong (display:screen:windowHandle) or poslong:posint:poslong:poslong (display:screen:windowHandle:XVisualInfo*) OS X Cocoa: OgreGLView address as an integer. You can pass NSView or NSWindow too, but should perform OgreGLView callbacks into the Ogre manually. iOS: UIWindow address as an integer	0 (none)	External window handle, for embedding the OGRE render in an existing window
externalGLControl	true, false	false	Let the external window control OpenGL i.e. don't select a pixel format for the window, do not change v-sync and do not swap buffer. When set to true, the calling application is responsible of OpenGL initialization and buffer swapping. It should also create an OpenGL context for its own rendering, Ogre will create one for its use. Then the calling application must also enable Ogre OpenGL context before calling any Ogre function and restore its OpenGL context after these calls.	OpenGL specific
externalGLContext	Context as Unsigned Long	0 (create own context)	Use an externally created GL context	OpenGL Specific
parentWindowHandle	Win32: HWND as integer GLX: poslong:posint:poslong (display:screen:windowHandle) or poslong:posint:poslong:poslong (display:screen:windowHandle:XVisualInfo*)	0 (none)	Parent window handle, for embedding the OGRE in a child of an external window
contentScalingFactor	Positive Float greater than 1.0	The default content scaling factor of the screen	Specifies the CAEAGLLayer content scaling factor. Only supported on iOS 4 or greater. This can be useful to limit the resolution of the OpenGL ES backing store. For example, the iPhone 4's native resolution is 960 x 640. Windows are always 320 x 480, if you would like to limit the display to 720 x 480, specify 1.5 as the scaling factor.	iOS Specific
externalViewHandle	UIView pointer as an integer	0	External view handle, for rendering OGRE render in an existing view	iOS Specific
externalViewControllerHandle	UIViewController pointer as an integer	0	External view controller handle, for embedding OGRE in an existing view controller	iOS Specific
externalSharegroup	EAGLSharegroup pointer as an integer	0	External sharegroup, used to shared GL resources between contexts	iOS Specific
Full Screen	true, false	false	Specify whether to create the window in full screen mode	OS X Specific
MSAA	Positive integer (usually 1, 2, 4, 8, 16)	1	Multisample antialiasing factor
MSAA_Quality	Depends on RenderSystem and hardware. Currently supports: 0 ... infinite number (depends on HW)	Blank	Full screen antialiasing hint
displayFrequency	Refresh rate in Hertz (e.g. 60, 75, 100)	Desktop vsync rate	Display frequency rate, for fullscreen mode
vsync	true, false	false	Synchronize buffer swaps to monitor vsync, eliminating tearing at the expense of a fixed frame rate
vsyncInterval	1, 2, 3, 4	1	If vsync is enabled, the minimum number of vertical blanks that should occur between renders. For example if vsync is enabled, the refresh rate is 60 and this is set to 2, then the frame rate will be locked at 30.
border	none, fixed, resize	resize	The type of window border (in windowed mode)
outerDimensions	true, false	false	Whether the width/height is expressed as the size of the outer window, rather than the content area
useNVPerfHUD	true, false	false	Enable the use of nVidia NVPerfHUD
gamma	true, false	false	Enable hardware conversion from linear colour space to gamma colour space on rendering to the window.
enableDoubleClick	true, false	false	Enable the window to keep track and transmit double click messages.	Win32 Specific
MSAA	Positive integer (usually 0, 2, 4, 8, 16)	0	Full screen antialiasing factor	Android Specific
CSAA	Positive integer (usually 0, 2, 4, 8, 16)	0	Coverage sampling factor (https://www.khronos.org/registry/egl/extensions/NV/EGL_NV_coverage_sample.txt)	Android Specific
maxColourBufferSize	Positive integer (usually 16, 32)	32	Max EGL_BUFFER_SIZE	Android Specific
minColourBufferSize	Positive integer (usually 16, 32)	16	Min EGL_BUFFER_SIZE	Android Specific
maxStencilBufferSize	Positive integer (usually 0, 8)	0	EGL_STENCIL_SIZE	Android Specific
maxDepthBufferSize	Positive integer (usually 0, 16, 24)	16	EGL_DEPTH_SIZE	Android Specific

Implements Ogre::RenderSystem.

◆ _dispatch()

void Ogre::NULLRenderSystem::_dispatch ( const HlmsComputePso & pso )

overridevirtual

Implements Ogre::RenderSystem.

◆ _endFrame()

void Ogre::NULLRenderSystem::_endFrame ( )

overridevirtual

Ends rendering of a frame to the current viewport.

Implements Ogre::RenderSystem.

◆ _initialise()

Window* Ogre::NULLRenderSystem::_initialise	(	bool	autoCreateWindow,
		const String &	windowTitle = `"OGRE Render Window"`
	)

overridevirtual

Start up the renderer using the settings selected (Or the defaults if none have been selected).

Remarks: Called by Root::setRenderSystem. Shouldn't really be called directly, although this can be done if the app wants to.

Parameters

autoCreateWindow	If true, creates a render window automatically, based on settings chosen so far. This saves an extra call to _createRenderWindow for the main render window.
windowTitle	Sets the app window title

Returns: A pointer to the automatically created window, if requested, otherwise null.

Reimplemented from Ogre::RenderSystem.

◆ _render() [1/4]

void Ogre::NULLRenderSystem::_render ( const CbDrawCallIndexed * cmd )

overridevirtual

Renders the VAO. Assumes _setVertexArrayObject has already been called.

Implements Ogre::RenderSystem.

◆ _render() [2/4]

void Ogre::NULLRenderSystem::_render ( const CbDrawCallStrip * cmd )

overridevirtual

Implements Ogre::RenderSystem.

◆ _render() [3/4]

void Ogre::NULLRenderSystem::_render ( const v1::CbDrawCallIndexed * cmd )

overridevirtual

Renders a V1 RenderOperation. Assumes _setRenderOperation has already been called.

Implements Ogre::RenderSystem.

◆ _render() [4/4]

void Ogre::NULLRenderSystem::_render ( const v1::CbDrawCallStrip * cmd )

overridevirtual

Implements Ogre::RenderSystem.

◆ _renderEmulated() [1/2]

void Ogre::NULLRenderSystem::_renderEmulated ( const CbDrawCallIndexed * cmd )

overridevirtual

Implements Ogre::RenderSystem.

◆ _renderEmulated() [2/2]

void Ogre::NULLRenderSystem::_renderEmulated ( const CbDrawCallStrip * cmd )

overridevirtual

Implements Ogre::RenderSystem.

◆ _setComputePso()

void Ogre::NULLRenderSystem::_setComputePso ( const HlmsComputePso * pso )

overridevirtual

Unlike _setPipelineStateObject, the RenderSystem will check if the PSO has changed to avoid redundant state changes (since it's hard to do it at Hlms level)

Implements Ogre::RenderSystem.

◆ _setCurrentDeviceFromTexture()

void Ogre::NULLRenderSystem::_setCurrentDeviceFromTexture ( TextureGpu * texture )

overridevirtual

Because Ogre doesn't (yet) have the notion of a 'device' or 'GL context', this function lets Ogre know which device should be used by providing a texture.

Parameters

texture Cannot be null.

Implements Ogre::RenderSystem.

◆ _setHlmsSamplerblock()

void Ogre::NULLRenderSystem::_setHlmsSamplerblock	(	uint8	texUnit,
		const HlmsSamplerblock *	Samplerblock
	)

overridevirtual

See HlmsSamplerblock.

This function MUST be called after _setTexture, not before. Otherwise not all APIs may see the change.

Implements Ogre::RenderSystem.

◆ _setIndirectBuffer()

void Ogre::NULLRenderSystem::_setIndirectBuffer ( IndirectBufferPacked * indirectBuffer )

overridevirtual

Implements Ogre::RenderSystem.

◆ _setPipelineStateObject()

void Ogre::NULLRenderSystem::_setPipelineStateObject ( const HlmsPso * pso )

overridevirtual

See also: HlmsPso

Reimplemented from Ogre::RenderSystem.

◆ _setPointParameters()

void Ogre::NULLRenderSystem::_setPointParameters	(	Real	size,
		bool	attenuationEnabled,
		Real	constant,
		Real	linear,
		Real	quadratic,
		Real	minSize,
		Real	maxSize
	)

overridevirtual

Sets the size of points and how they are attenuated with distance.

Remarks: When performing point rendering or point sprite rendering, point size can be attenuated with distance. The equation for doing this is attenuation = 1 / (constant + linear * dist + quadratic * d^2) .

: For example, to disable distance attenuation (constant screensize) you would set constant to 1, and linear and quadratic to 0. A standard perspective attenuation would be 0, 1, 0 respectively.

Implements Ogre::RenderSystem.

◆ _setPointSpritesEnabled()

void Ogre::NULLRenderSystem::_setPointSpritesEnabled ( bool enabled )

overridevirtual

Sets whether or not rendering points using OT_POINT_LIST will render point sprites (textured quads) or plain points.

Parameters

enabled True enables point sprites, false returns to normal point rendering.

Implements Ogre::RenderSystem.

◆ _setProjectionMatrix()

void Ogre::NULLRenderSystem::_setProjectionMatrix ( const Matrix4 & m )

overridevirtual

Sets the projection transform matrix.

Implements Ogre::RenderSystem.

◆ _setRenderOperation()

void Ogre::NULLRenderSystem::_setRenderOperation ( const v1::CbRenderOp * cmd )

overridevirtual

Implements Ogre::RenderSystem.

◆ _setSamplers()

void Ogre::NULLRenderSystem::_setSamplers	(	uint32	slotStart,
		const DescriptorSetSampler *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setSamplersCS()

void Ogre::NULLRenderSystem::_setSamplersCS	(	uint32	slotStart,
		const DescriptorSetSampler *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setSurfaceParams()

void Ogre::NULLRenderSystem::_setSurfaceParams	(	const ColourValue &	ambient,
		const ColourValue &	diffuse,
		const ColourValue &	specular,
		const ColourValue &	emissive,
		Real	shininess,
		TrackVertexColourType	tracking = `TVC_NONE`
	)

overridevirtual

Sets the surface properties to be used for future rendering.

This method sets the the properties of the surfaces of objects to be rendered after it. In this context these surface properties are the amount of each type of light the object reflects (determining it's colour under different types of light), whether it emits light itself, and how shiny it is. Textures are not dealt with here, see the _setTetxure method for details. This method is used by _setMaterial so does not need to be called direct if that method is being used.

Parameters

ambient	The amount of ambient (sourceless and directionless) light an object reflects. Affected by the colour/amount of ambient light in the scene.
diffuse	The amount of light from directed sources that is reflected (affected by colour/amount of point, directed and spot light sources)
specular	The amount of specular light reflected. This is also affected by directed light sources but represents the colour at the highlights of the object.
emissive	The colour of light emitted from the object. Note that this will make an object seem brighter and not dependent on lights in the scene, but it will not act as a light, so will not illuminate other objects. Use a light attached to the same SceneNode as the object for this purpose.
shininess	A value which only has an effect on specular highlights (so specular must be non-black). The higher this value, the smaller and crisper the specular highlights will be, imitating a more highly polished surface. This value is not constrained to 0.0-1.0, in fact it is likely to be more (10.0 gives a modest sheen to an object).
tracking	A bit field that describes which of the ambient, diffuse, specular and emissive colours follow the vertex colour of the primitive. When a bit in this field is set its ColourValue is ignored. This is a combination of TVC_AMBIENT, TVC_DIFFUSE, TVC_SPECULAR(note that the shininess value is still taken from shininess) and TVC_EMISSIVE. TVC_NONE means that there will be no material property tracking the vertex colours.

Implements Ogre::RenderSystem.

◆ _setTexture()

void Ogre::NULLRenderSystem::_setTexture	(	size_t	unit,
		TextureGpu *	texPtr,
		bool	bDepthReadOnly
	)

overridevirtual

Sets the texture to bind to a given texture unit.

User processes would not normally call this direct unless rendering primitives themselves.

Parameters

unit	The index of the texture unit to modify. Multitexturing hardware can support multiple units (see RenderSystemCapabilites::getNumTextureUnits)
enabled	Boolean to turn the unit on/off
texPtr	Pointer to the texture to use.
bDepthReadOnly	true if the texture is also attached as a depth buffer but is read only

Implements Ogre::RenderSystem.

◆ _setTextureBlendMode()

void Ogre::NULLRenderSystem::_setTextureBlendMode	(	size_t	unit,
		const LayerBlendModeEx &	bm
	)

overridevirtual

Sets the texture blend modes from a TextureUnitState record.

Meant for use internally only - apps should use the Material and TextureUnitState classes.

Parameters

unit	Texture unit as above
bm	Details of the blending mode

Implements Ogre::RenderSystem.

◆ _setTextureCoordCalculation()

void Ogre::NULLRenderSystem::_setTextureCoordCalculation	(	size_t	unit,
		TexCoordCalcMethod	m,
		const Frustum *	frustum = `0`
	)

overridevirtual

Sets a method for automatically calculating texture coordinates for a stage.

Should not be used by apps - for use by Ogre only.

Parameters

unit	Texture unit as above
m	Calculation method to use
frustum	Optional Frustum param, only used for projective effects

Implements Ogre::RenderSystem.

◆ _setTextureMatrix()

void Ogre::NULLRenderSystem::_setTextureMatrix	(	size_t	unit,
		const Matrix4 &	xform
	)

overridevirtual

Sets the texture coordinate transformation matrix for a texture unit.

Parameters

unit	Texture unit to affect
xform	The 4x4 matrix

Implements Ogre::RenderSystem.

◆ _setTextures() [1/2]

void Ogre::NULLRenderSystem::_setTextures	(	uint32	slotStart,
		const DescriptorSetTexture *	set,
		uint32	hazardousTexIdx
	)

overridevirtual

Parameters

slotStart
set
hazardousTexIdx	When hazardousTexIdx < set->mTextures.size(); it means that we need to check if set->mTextures[hazardousTexIdx] is not the same as the currently bound RTT.

Implements Ogre::RenderSystem.

◆ _setTextures() [2/2]

void Ogre::NULLRenderSystem::_setTextures	(	uint32	slotStart,
		const DescriptorSetTexture2 *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setTexturesCS() [1/2]

void Ogre::NULLRenderSystem::_setTexturesCS	(	uint32	slotStart,
		const DescriptorSetTexture *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setTexturesCS() [2/2]

void Ogre::NULLRenderSystem::_setTexturesCS	(	uint32	slotStart,
		const DescriptorSetTexture2 *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setUavCS()

void Ogre::NULLRenderSystem::_setUavCS	(	uint32	slotStart,
		const DescriptorSetUav *	set
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ _setVertexArrayObject()

void Ogre::NULLRenderSystem::_setVertexArrayObject ( const VertexArrayObject * vao )

overridevirtual

Part of the low level rendering interface.

Tells the RS which VAO will be bound now. (i.e. Vertex Formats, buffers being bound, etc.) You don't need to rebind if the VAO's mRenderQueueId is the same as previous call.

Remarks: Assumes _setPipelineStateObject has already been called.

Implements Ogre::RenderSystem.

◆ _setViewMatrix()

void Ogre::NULLRenderSystem::_setViewMatrix ( const Matrix4 & m )

overridevirtual

Sets the view transform matrix.

Implements Ogre::RenderSystem.

◆ _setWorldMatrix()

void Ogre::NULLRenderSystem::_setWorldMatrix ( const Matrix4 & m )

overridevirtual

Sets the world transform matrix.

Implements Ogre::RenderSystem.

◆ _useLights()

void Ogre::NULLRenderSystem::_useLights	(	const LightList &	lights,
		unsigned short	limit
	)

overridevirtual

Tells the rendersystem to use the attached set of lights (and no others) up to the number specified (this allows the same list to be used with different count limits)

Implements Ogre::RenderSystem.

◆ beginGPUSampleProfile()

void Ogre::NULLRenderSystem::beginGPUSampleProfile	(	const String &	name,
		uint32 *	hashCache
	)

overridevirtual

Implements Ogre::RenderSystem.

◆ beginProfileEvent()

void Ogre::NULLRenderSystem::beginProfileEvent ( const String & eventName )

overridevirtual

This marks the beginning of an event for GPU profiling.

Implements Ogre::RenderSystem.

◆ bindGpuProgramParameters()

void Ogre::NULLRenderSystem::bindGpuProgramParameters	(	GpuProgramType	gptype,
		GpuProgramParametersSharedPtr	params,
		uint16	variabilityMask
	)

overridevirtual

Bind Gpu program parameters.

Parameters

gptype	The type of program to bind the parameters to
params	The parameters to bind
variabilityMask	A mask of GpuParamVariability identifying which params need binding

Implements Ogre::RenderSystem.

◆ bindGpuProgramPassIterationParameters()

void Ogre::NULLRenderSystem::bindGpuProgramPassIterationParameters ( GpuProgramType gptype )

overridevirtual

Only binds Gpu program parameters used for passes that have more than one iteration rendering.

Implements Ogre::RenderSystem.

◆ clearFrameBuffer()

void Ogre::NULLRenderSystem::clearFrameBuffer	(	RenderPassDescriptor *	renderPassDesc,
		TextureGpu *	anyTarget,
		uint8	mipLevel
	)

overridevirtual

Immediately clears the whole frame buffer on the selected RenderPassDescriptor.

Prefer clearing using the LoadAction semantics in the RenderPassDescriptor. This function is provided for two reasons:

Backwards compatibility (i.e. easier porting from 2.1)
Non-tilers desktop GPUs may be faster to clear the whole framebuffer at once.
Remarks
Will break an existing RenderPassDescriptor set via beginRenderPassDescriptor.

Parameters

renderPassDesc RenderPassDescriptor filled with LoadActions set to clear and StoreActions set to Store.

Implements Ogre::RenderSystem.

◆ createHardwareOcclusionQuery()

HardwareOcclusionQuery* Ogre::NULLRenderSystem::createHardwareOcclusionQuery ( )

overridevirtual

Create an object for performing hardware occlusion queries.

Implements Ogre::RenderSystem.

◆ createRenderPassDescriptor()

RenderPassDescriptor* Ogre::NULLRenderSystem::createRenderPassDescriptor ( )

overridevirtual

Implements Ogre::RenderSystem.

◆ createRenderSystemCapabilities()

RenderSystemCapabilities* Ogre::NULLRenderSystem::createRenderSystemCapabilities ( ) const

overridevirtual

Query the real capabilities of the GPU and driver in the RenderSystem.

Implements Ogre::RenderSystem.

◆ deinitGPUProfiling()

void Ogre::NULLRenderSystem::deinitGPUProfiling ( )

overridevirtual

Implements Ogre::RenderSystem.

◆ endGPUSampleProfile()

void Ogre::NULLRenderSystem::endGPUSampleProfile ( const String & name )

overridevirtual

Implements Ogre::RenderSystem.

◆ endProfileEvent()

void Ogre::NULLRenderSystem::endProfileEvent ( )

overridevirtual

Ends the currently active GPU profiling event.

Implements Ogre::RenderSystem.

◆ flushCommands()

void Ogre::NULLRenderSystem::flushCommands ( )

overridevirtual

Implements Ogre::RenderSystem.

◆ getColourVertexElementType()

VertexElementType Ogre::NULLRenderSystem::getColourVertexElementType ( ) const

overridevirtual

Get the native VertexElementType for a compact 32-bit colour value for this rendersystem.

Implements Ogre::RenderSystem.

◆ getConfigOptions()

ConfigOptionMap& Ogre::NULLRenderSystem::getConfigOptions ( )

inlineoverridevirtual

Returns the details of this API's configuration options.

Remarks: Each render system must be able to inform the world of what options must/can be specified for it's operation.

: These are passed as strings for portability, but grouped into a structure (_ConfigOption) which includes both options and current value.

: Note that the settings returned from this call are affected by the options that have been set so far, since some options are interdependent.

: This routine is called automatically by the default configuration dialogue produced by Root::showConfigDialog or may be used by the caller for custom settings dialogs

Returns: A 'map' of options, i.e. a list of options which is also indexed by option name.

Implements Ogre::RenderSystem.

◆ getDisplayMonitorCount()

unsigned int Ogre::NULLRenderSystem::getDisplayMonitorCount ( ) const

inlineoverridevirtual

Gets the number of display monitors.

See also: Root::getDisplayMonitorCount

Implements Ogre::RenderSystem.

◆ getErrorDescription()

String Ogre::NULLRenderSystem::getErrorDescription ( long errorNumber ) const

overridevirtual

Returns a description of an error code.

Implements Ogre::RenderSystem.

◆ getFriendlyName()

const String& Ogre::NULLRenderSystem::getFriendlyName ( ) const

overridevirtual

Returns the friendly name of the render system.

Implements Ogre::RenderSystem.

◆ getHorizontalTexelOffset()

Real Ogre::NULLRenderSystem::getHorizontalTexelOffset ( )

overridevirtual

Returns the horizontal texel offset value required for mapping texel origins to pixel origins in this rendersystem.

Remarks: Since rendersystems sometimes disagree on the origin of a texel, mapping from texels to pixels can sometimes be problematic to implement generically. This method allows you to retrieve the offset required to map the origin of a texel to the origin of a pixel in the horizontal direction.

Implements Ogre::RenderSystem.

◆ getMaximumDepthInputValue()

Real Ogre::NULLRenderSystem::getMaximumDepthInputValue ( )

overridevirtual

Gets the maximum (farthest) depth value to be used when rendering using identity transforms.

Remarks: When using identity transforms you can manually set the depth of a vertex; however the input values required differ per rendersystem. This method lets you retrieve the correct value.

See also: Renderable::getUseIdentityView, Renderable::getUseIdentityProjection

Implements Ogre::RenderSystem.

◆ getMinimumDepthInputValue()

Real Ogre::NULLRenderSystem::getMinimumDepthInputValue ( )

overridevirtual

Gets the minimum (closest) depth value to be used when rendering using identity transforms.

Remarks: When using identity transforms you can manually set the depth of a vertex; however the input values required differ per rendersystem. This method lets you retrieve the correct value.

See also: Renderable::getUseIdentityView, Renderable::getUseIdentityProjection

Implements Ogre::RenderSystem.

◆ getName()

const String& Ogre::NULLRenderSystem::getName ( ) const

overridevirtual

Returns the name of the rendering system.

Implements Ogre::RenderSystem.

◆ getPixelFormatToShaderType()

const PixelFormatToShaderType* Ogre::NULLRenderSystem::getPixelFormatToShaderType ( ) const

overridevirtual

Implements Ogre::RenderSystem.

◆ getVerticalTexelOffset()

Real Ogre::NULLRenderSystem::getVerticalTexelOffset ( )

overridevirtual

Returns the vertical texel offset value required for mapping texel origins to pixel origins in this rendersystem.

Remarks: Since rendersystems sometimes disagree on the origin of a texel, mapping from texels to pixels can sometimes be problematic to implement generically. This method allows you to retrieve the offset required to map the origin of a texel to the origin of a pixel in the vertical direction.

Implements Ogre::RenderSystem.

◆ hasAnisotropicMipMapFilter()

bool Ogre::NULLRenderSystem::hasAnisotropicMipMapFilter ( ) const

inlineoverridevirtual

Determines if the system has anisotropic mip map filter support.

Implements Ogre::RenderSystem.

◆ initGPUProfiling()

void Ogre::NULLRenderSystem::initGPUProfiling ( )

overridevirtual

Implements Ogre::RenderSystem.

◆ initialiseFromRenderSystemCapabilities()

void Ogre::NULLRenderSystem::initialiseFromRenderSystemCapabilities	(	RenderSystemCapabilities *	caps,
		Window *	primary
	)

overridevirtual

Initialize the render system from the capabilities.

Implements Ogre::RenderSystem.

◆ markProfileEvent()

void Ogre::NULLRenderSystem::markProfileEvent ( const String & event )

overridevirtual

Marks an instantaneous event for graphics profilers.

This is equivalent to calling beginProfileEvent() and endProfileEvent() back to back.

Implements Ogre::RenderSystem.

◆ postExtraThreadsStarted()

void Ogre::NULLRenderSystem::postExtraThreadsStarted ( )

overridevirtual

Implements Ogre::RenderSystem.

◆ preExtraThreadsStarted()

void Ogre::NULLRenderSystem::preExtraThreadsStarted ( )

overridevirtual

Tell the rendersystem to perform any prep tasks it needs to directly before other threads which might access the rendering API are registered.

Remarks

Call this from your main thread before starting your other threads (which themselves should call registerThread()). Note that if you start your own threads, there is a specific startup sequence which must be respected and requires synchronisation between the threads:

[Main thread]Call preExtraThreadsStarted
[Main thread]Start other thread, wait
[Other thread]Call registerThread, notify main thread & continue
[Main thread]Wake up & call postExtraThreadsStarted

Once this init sequence is completed the threads are independent but this startup sequence must be respected.

Implements Ogre::RenderSystem.

◆ registerThread()

void Ogre::NULLRenderSystem::registerThread ( )

overridevirtual

Register the an additional thread which may make calls to rendersystem-related objects.

Remarks: This method should only be called by additional threads during their initialisation. If they intend to use hardware rendering system resources they should call this method before doing anything related to the render system. Some rendering APIs require a per-thread setup and this method will sort that out. It is also necessary to call unregisterThread before the thread shuts down.

Note: This method takes no parameters - it must be called from the thread being registered and that context is enough.

Implements Ogre::RenderSystem.

◆ reinitialise()

void Ogre::NULLRenderSystem::reinitialise ( )

overridevirtual

Restart the renderer (normally following a change in settings).

Implements Ogre::RenderSystem.

◆ setClipPlanesImpl()

void Ogre::NULLRenderSystem::setClipPlanesImpl ( const PlaneList & clipPlanes )

overridevirtual

Internal method used to set the underlying clip planes when needed.

Implements Ogre::RenderSystem.

◆ setConfigOption()

void Ogre::NULLRenderSystem::setConfigOption	(	const String &	name,
		const String &	value
	)

inlineoverridevirtual

Sets an option for this API.

Remarks: Used to confirm the settings (normally chosen by the user) in order to make the renderer able to initialise with the settings as required. This may be video mode, D3D driver, full screen / windowed etc. Called automatically by the default configuration dialog, and by the restoration of saved settings. These settings are stored and only activated when RenderSystem::initialise or RenderSystem::reinitialise are called.

: If using a custom configuration dialog, it is advised that the caller calls RenderSystem::getConfigOptions again, since some options can alter resulting from a selection.

Parameters

name	The name of the option to alter.
value	The value to set the option to.

Implements Ogre::RenderSystem.

◆ shutdown()

void Ogre::NULLRenderSystem::shutdown ( )

overridevirtual

Shutdown the renderer and cleanup resources.

Reimplemented from Ogre::RenderSystem.

◆ unregisterThread()

void Ogre::NULLRenderSystem::unregisterThread ( )

overridevirtual

Unregister an additional thread which may make calls to rendersystem-related objects.

See also: RenderSystem::registerThread

Implements Ogre::RenderSystem.

◆ validateConfigOptions()

String Ogre::NULLRenderSystem::validateConfigOptions ( )

inlineoverridevirtual

Validates the options set for the rendering system, returning a message if there are problems.

Note: If the returned string is empty, there are no problems.

Implements Ogre::RenderSystem.

References Ogre::BLANKSTRING.

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

OgreNULLRenderSystem.h

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NULLRenderSystem()

◆ ~NULLRenderSystem()

Member Function Documentation

◆ _beginFrame()

◆ _convertProjectionMatrix()

◆ _createRenderWindow()

◆ _dispatch()

◆ _endFrame()

◆ _initialise()

◆ _render() [1/4]

◆ _render() [2/4]

◆ _render() [3/4]

◆ _render() [4/4]

◆ _renderEmulated() [1/2]

◆ _renderEmulated() [2/2]

◆ _setComputePso()

◆ _setCurrentDeviceFromTexture()

◆ _setHlmsSamplerblock()

◆ _setIndirectBuffer()

◆ _setPipelineStateObject()

◆ _setPointParameters()

◆ _setPointSpritesEnabled()

◆ _setProjectionMatrix()

◆ _setRenderOperation()

◆ _setSamplers()

◆ _setSamplersCS()

◆ _setSurfaceParams()

◆ _setTexture()

◆ _setTextureBlendMode()

◆ _setTextureCoordCalculation()

◆ _setTextureMatrix()

◆ _setTextures() [1/2]

◆ _setTextures() [2/2]

◆ _setTexturesCS() [1/2]

◆ _setTexturesCS() [2/2]

◆ _setUavCS()

◆ _setVertexArrayObject()

◆ _setViewMatrix()

◆ _setWorldMatrix()

◆ _useLights()

◆ beginGPUSampleProfile()

◆ beginProfileEvent()

◆ bindGpuProgramParameters()

◆ bindGpuProgramPassIterationParameters()

◆ clearFrameBuffer()

◆ createHardwareOcclusionQuery()

◆ createRenderPassDescriptor()

◆ createRenderSystemCapabilities()

◆ deinitGPUProfiling()

◆ endGPUSampleProfile()

◆ endProfileEvent()

◆ flushCommands()

◆ getColourVertexElementType()

◆ getConfigOptions()

◆ getDisplayMonitorCount()

◆ getErrorDescription()

◆ getFriendlyName()

◆ getHorizontalTexelOffset()

◆ getMaximumDepthInputValue()

◆ getMinimumDepthInputValue()

◆ getName()

◆ getPixelFormatToShaderType()

◆ getVerticalTexelOffset()

◆ hasAnisotropicMipMapFilter()

◆ initGPUProfiling()

◆ initialiseFromRenderSystemCapabilities()

◆ markProfileEvent()

◆ postExtraThreadsStarted()

◆ preExtraThreadsStarted()

◆ registerThread()

◆ reinitialise()

◆ setClipPlanesImpl()

◆ setConfigOption()

◆ shutdown()

◆ unregisterThread()

◆ validateConfigOptions()