Base class for rendering a 3D scene to an image. More...

#include <Render.h>

Inheritance diagram for DD::Image::Render:

Classes
class	Span

Public Types
enum	{ SINGLE_SAMPLE , MULTISAMPLE_LOW , MULTISAMPLE_MED , MULTISAMPLE_HIGH }

Public Types inherited from DD::Image::Op
enum	HandlesMode { eNoHandles , eHandlesUncooked , eHandlesCooked , eHandlesMax }

enum	PrevalidateResult { eFinished , eCancelled , eAbandoned }
	This is a tribool return value. Do not extend.

enum	HandleType { eNone , eMouseLeftClick , eMouseRightClick , eMouseMove , eMouseDrag , eMouseRelease , eSelectionChanged , eSelectionChangeFinished , eHandleDragTranslate , eHandleDragRotate , eHandleDragScale , eHandleDragPivot , eAllHandles }

enum	ViewableModes { eViewableMode2D , eViewableMode3D , eViewableMode3D_2DReference }

enum	GenerateType { OUTPUT_OP , ANY_CONTEXT , INPUT_OP , INPUT_OP_PEEK , EXECUTABLE , EXECUTABLE_SKIP , EXECUTABLE_INPUT , UICONTEXT_ONLY }

enum	NodeContext { eNodeGraph , eTimeline , eOpGraph }

enum	StatusFlags { StatusNone , StatusModal , StatusUseCallback }

enum	PopUpScheme { ePU_Never , ePU_Done , ePU_Once , ePU_Default , ePU_Always }
	Pop-up schemes determine when pop-up messages are displayed for op errors. More...

enum	VersionComponents { eMajor , eMinor , ePoint , eRevision }
	Enum to help get the desired version component from the VersionInfo tuple.

typedef std::pair< int, DD::Image::Op * >	Output
	Combination of input number and pointer to Op.

typedef std::set< Output >	OutputSet
	Set of all outputs from this Op.

typedef std::map< Hash, std::vector< unsigned int > >	ItemSelectionList

typedef bool()	EventCallback(Op *op, EventContext eventCtx)

using	VersionInfo = std::tuple< int, int, int, int >
	Contains version components with each index defined by the VersionComponents enum.

Public Types inherited from DD::Image::IopInfoOwner
typedef IopInfo	Info

Public Member Functions
virtual CameraOp *	render_camera (int sample=0)

virtual GeoOp *	render_geo (int sample=0)=0

virtual Matrix4	camera_matrix (int sample=0)

virtual Matrix4	projection_matrix (int sample=0)

virtual void	format_matrix (int sample=0)

Matrix4	get_format_matrix (float cx, float cy)

void	knobs (Knob_Callback) override

void	display_knobs (Knob_Callback)

void	texture_knobs (Knob_Callback)

void	sampling_knobs (Knob_Callback)

void	jitter_knobs (Knob_Callback)

void	render_knobs (Knob_Callback)
	All of the above.

unsigned	node_color () const override

double	overscanX ()

double	overscanY ()

int	projection_mode () const

int	blend_operation () const

const Filter *	texture_filter () const

int	multisampling () const

float	hitThresholdDistance () const

virtual int	multisamples () const

virtual Scene *	scene (int n=0) const

virtual double	shutter () const

virtual double	offset () const

virtual unsigned	samples () const

HandlesMode	doAnyHandles (ViewerContext *ctx) override

void	build_handles (ViewerContext *) override

void	buildGeoInfoHandle (ViewerContext *ctx, DrawHandleCallbackFunc cb)

virtual void	probe (const Vector3 &center, const VertexContext &vtx, Pixel &out)
	Sample the frame buffer.

Public Member Functions inherited from DD::Image::Iop
void	fetchPlane (ImagePlane &imagePlane)

virtual PlanarI *	getPlanarI ()

void	force_validate (bool for_real=true) override

IopImpl *	pImpl ()

virtual void	engine (int y, int x, int r, ChannelMask, Row &)=0

Iop *	iop () override
	Cast to an Iop. This is much cheaper and safer than using dynamic_cast.

const Iop *	iop () const override

	~Iop () override

virtual bool	isBlackIop () const

bool	test_input (int, Op *) const override

Op *	default_input (int) const override

Iop *	input (int n) const

Iop *	input (int n, int m) const

Iop &	input0 () const

Iop &	input1 () const

Cache *	cache () const

bool	cached () const

void	cached (bool b)

virtual void	in_channels (int, ChannelSet &) const

ChannelMask	out_channels () const

int	raw_channels_from () const

virtual bool	pass_transform () const

void	request (int x, int y, int r, int t, ChannelMask channels, int count)

void	request (DD::Image::Box box, ChannelMask channels, int count)

void	request (ChannelMask channels, int count)

void	_copyState (Iop *input)

const Box &	requestedBox () const

const Box &	unclampedRequestedBox () const

ChannelMask	requested_channels () const

ChannelMask	multi_requested_channels () const

ChannelMask	unclamped_requested_channels () const

int	requested_count () const

virtual void	get (int y, int x, int r, ChannelMask, Row &)

void	at (int x, int y, Pixel &out)

float	at (int x, int y, Channel)

ChannelSet	peek (int x, int y, int r, int t, Pixel &out)

bool	peek (int x, int y, int w, int h, ChannelMask pixelChannels, PixelCallbackI &callback)

virtual Transform *	getTransform ()

TextureImageInfo	getTextureImageInfo (int maxWidth, int maxHeight, bool extractBbox=true, bool keepImageAspect=false) const

TextureImageInfo::UVTransform	getTextureTransform () const

virtual bool	set_texturemap (ViewerContext *, bool gl=true)

virtual TextureImage	get_texturemap (ViewerContext *ctx)

virtual void	unset_texturemap (ViewerContext *)

virtual bool	shade_GL (ViewerContext *, GeoInfo &)

virtual void	vertex_shader (VertexContext &)

virtual void	fragment_shader (const VertexContext &, Pixel &out)

virtual void	displacement_shader (const VertexContext &vtx, VArray &out)

virtual float	displacement_bound () const

virtual void	blending_shader (const Pixel &in, Pixel &out)

virtual void	render_state (GeoInfoRenderState &state)

virtual void	sample (float cx, float cy, float w, float h, Filter *, Pixel &out)

void	sample (float cx, float cy, float w, float h, Pixel &out)

virtual void	sample (const Vector2 &center, const Vector2 &dU, const Vector2 &dV, Filter *filter, Pixel &out)

void	sample (const Vector2 &center, const Vector2 &dU, const Vector2 &dV, Pixel &out)

virtual float	sample_shadowmap (Iop map, bool map_is_one_over_z, float cx, float cy, float W, float H, Filter filter, float Pz)

void	build_handles (ViewerContext *) override

virtual void	inputsAttached ()

virtual void	gpuEngine_useTextureTransform (bool useTransform)
	GPU support code.

virtual void	gpuEngine_setupTextureTransform (const Matrix4 &postOpTransform)

virtual const char *	gpuEngine_decl () const

virtual const char *	gpuEngine_body () const

virtual Hash	gpuEngine_shader_hash_at (double time)

virtual int	gpuEngine_getNumRequiredTexUnits () const

virtual void	gpuEngine_GL_begin (GPUContext *context)

virtual void	gpuEngine_GL_end (GPUContext *context)

virtual Iop *	viewerPassThrough () const

OpHints	opHints () const override
	Return hints to control when and how this op will be evaluated by the top-down system.

virtual void	setExtendedOpProperties (std::shared_ptr< ExtendedOpProperties > extendedOpProperties)
	Sets the pointer to object implementing extended properties.

virtual std::shared_ptr< ExtendedOpProperties >	getExtendedOpProperties () const
	Returns the pointer to object implementing extended properties.

Public Member Functions inherited from DD::Image::Op
PrevalidateResult	preValidate (ViewerContext ctx=nullptr, PreValidateContext =nullptr)

Op *	rootOp () const

bool	preValidateAborted (int treeStartingVersion, PrevalidateResult &result) const

const OutputSet &	getOutputs () const
	return all the outputs of this node

virtual void	setInputsValid (bool nowValid)
	set whether the input ops are valid (are for the right context)

bool	inputsValid () const
	return whether the input ops are valid (are for the right context)

virtual bool	can_clone () const
	returns whether or not an op can be cloned in the dag

bool	haveHash () const
	return true if the hash() value is meaningful and globally unique

bool	varyingOutputHash () const

void	setVaryingOutputHash (bool varyingHashes)
	Set the varyingOutputHash indicator to a specific state.

void	enableVaryingOutputHash ()
	Enable the varyingOutputHash indicator.

virtual Hash	editState () const

virtual void	setEditState (const Hash &h)

virtual std::vector< DD::Image::OutputContext >	getPrevVersionsWanted () const

virtual const MetaData::Bundle &	_fetchMetaData (const char *keyname)

const MetaData::Bundle &	fetchMetaData (const char *keyname)

Node *	node () const

DD::Image::NodeI *	getNode () const

void	node (Node *v)

const char *	nodeName () const
	Return NodeI::name() which is the Node's local name with no parent path.

std::string	nodeFullPath (char separator='.') const

Hash	nodeTopologyHash () const

Op *	firstOp () const

void	firstOp (Op *v)

Op *	parent () const

void	parent (Op *lpOp)

virtual void	detach ()
	node has been deleted in DAG

virtual void	attach ()
	node has been created in DAG

virtual void	pre_write_knobs ()

void	knobStorePrep (const OutputContext &storeContext)

virtual void	knobs (Knob_Callback)

void	knobStorePost (const OutputContext &storeContext, Hash &hash)

int	replace_knobs (Knob afterthis, int n, void(f)(void , Knob_Callback), void , const char *fileExt=nullptr)

int	add_knobs (void(f)(void , Knob_Callback), void *, Knob_Callback)

void	set_unlicensed ()

Knob *	knob (const char *name) const

Knob *	knob (int) const

bool	pushed () const

bool	panel_visible () const

bool	node_disabled () const

bool	node_selected () const

unsigned	node_gl_color () const

void *	field (const char *name)

void *	field (const char *name, int &type)

void *	set_field (const char name, const void source, int size)

void *	get_field (const char name, void dest, int size)

void	beginHandle (HandleType command, ViewerContext ctx, EventCallback cb, int index, float x=0, float y=0, float z=0, ViewerContext::Cursor cursor=ViewerContext::kNoCursor)

void	endHandle (ViewerContext *ctx)

virtual int	knob_changed (Knob *)

virtual int	knob_change_finished (Knob *knob, bool changedByUser=true)

void	addTime (OpTimer::Category category, long long microsecondsCPU, long long microsecondsWall, bool isTopLevel=true)

void	getPerformanceInfo (OpTimer::Category category, OpTimer::PerformanceInfo &info) const
	return the amount of CPU time taken by this op

virtual bool	inputs_clockwise () const
	whether unconnected inputs on the DAG should be arranged clockwise or anticlockwise (default)

virtual std::vector< int >	input_order () const

virtual int	inputArrows (int nodeInputs) const

bool	script_command (const char *command, bool py=true, bool eval=true) const

bool	script_expand (const char *str) const

HandlesMode	anyHandles (ViewerContext *ctx)

virtual void	build_handles (ViewerContext *)

void	add_draw_handle (ViewerContext *)

virtual void	draw_handle (ViewerContext *)

virtual void	add_input_handle (int input, ViewerContext *)

void	add_op_handle (ViewerContext *ctx)

void	add_knob_handle (Knob , ViewerContext )

virtual int	getViewableModes () const

virtual int	optional_input () const

virtual int	minimum_inputs () const

virtual int	maximum_inputs () const

virtual bool	test_input (int, Op *) const

int	inputs () const

int	node_inputs () const

Op *	node_input (int, GenerateType=OUTPUT_OP) const

Op *	node_input (int, GenerateType, const DD::Image::OutputContext *outputContext) const

Op *	input_op (int n=0) const

virtual void	inputs (int n)

Op *	input (int) const

int	inputNumber (int input, int offset) const

Op *	input (int input, int offset) const

Op *	input0 () const
	return the primary input

Op *	input1 () const
	return the second input, if it exists

const std::vector< Op * > &	getInputs () const

const std::vector< Op * > &	getChildren () const

virtual void	set_input (int i, Op *op, int input, int offset)

void	set_input0 (Op *op)

void	set_input (int i, Op *op)

void	set_input (int i, Op &op)

void	set_input (int input, int offset, Op *op)

const OutputContext &	outputContext () const

virtual void	setOutputContext (const OutputContext &c)

virtual void	append (Hash &)

virtual float	uses_input (int) const

virtual void	build_splits ()

virtual int	split_input (int) const

virtual const OutputContext &	inputContext (int n, int offset, OutputContext &) const

virtual const OutputContext *	inputUIContext (int n, OutputContext &) const

virtual Op *	default_input (int) const

const Hash &	hash () const

virtual bool	frameTransformImplemented () const

virtual bool	frameTransformDownstream (const OutputContext &context, unsigned int input, float inFrame, float &outFrame) const

virtual bool	frameTransformUpstream (const OutputContext &context, unsigned int input, float outFrame, float &inFrame) const

virtual DopeItemFlags::Mask	getDopeItemFlags () const

virtual bool	shouldHideInDopeSheet (Knob *knob) const

virtual DD::Image::Knob *	getDopeItemKnob () const

virtual ViewSet	viewsProduced () const

virtual ViewSet	viewsWantOn (int i) const

virtual ViewSet	splitForViews () const

bool	requested () const

void	setRequested ()

void	forgetRequestShallow ()

void	forget_request ()

void	forget_request (std::set< Op * > &forgotten)

virtual const char *	node_shape () const

DD::Image::Hash	curveHash () const

bool	opCurrent () const

virtual unsigned	node_color () const

virtual const char *	node_help () const =0

virtual const char *	input_label (int, char *) const

virtual std::string	input_longlabel (int) const

void	node_redraw ()

void	print_name (std::ostream &o) const

NodeContext	nodeContext () const

std::string	node_name () const
	Returns the same string as printed by print_name(ostream).

void	invalidateSameHash ()

bool	invalidate ()

bool	invalidate (const Hash &hash)

bool	update (const Box *=nullptr)

void	asapUpdate ()

void	asapUpdate (const Box &box, int direction=0)

void	validate (bool for_real=true)

virtual void	force_validate (bool for_real=true)

void	update_handles () const

bool	valid () const
	Returns true if it has been validated - including if there was an error.

bool	real_valid () const
	Returns true if it has been real-validated - including if there was an error.

bool	inErrorState () const

bool	inInvalidState () const

bool	opened () const

void	open ()

void	unopen ()

bool	running () const

void	running (bool v)

bool	not_closed () const

void	close ()

void	callCloseAfter (double seconds)

void	copyState (Op *input)

bool	cached () const

void	cached (bool b)

virtual bool	inUse () const

virtual Executable *	executable ()

void	setKnobsToContext (const OutputContext &, bool force=false)

void	gotoContext (const OutputContext &, bool update)

void	progressFraction (double fraction, StatusFlags flags=StatusNone)

void	progressFraction (int a, int b, StatusFlags flags=StatusNone)

void	progressMessage (const char *fmt,...)

void	progressModalMessage (const char *fmt,...)

void	progressDismiss ()

int	slowness () const

void	slowness (int newval)

virtual bool	firstEngineRendersWholeRequest () const

virtual bool	updateUI (const OutputContext &context)

const Format &	input_format () const

const OutputContext &	uiContext () const

void	error (const char *fmt,...)

void	warning (const char *fmt,...)

void	critical (const char *fmt,...)

void	debug (const char *fmt,...)

void	abort () const
	Abort all trees the op is in.

bool	aborted () const
	True if one of the trees the op is in was aborted; ops should check this while processing and return quickly when true.

void	cancel () const
	Cancel all trees the op is in. Make sure you also call abort() to stop processing.

bool	cancelled () const
	True if one of the trees the op is in was cancelled (by user interaction)

bool	addToTree (OpTree *lpTree)
	Returns true if the op was added to the tree, or false if its reference count increased.

bool	removeFromTree (OpTree *lpTree)
	Returns false if the op was removed from the tree, or true if its reference count decreased.

bool	isInTree (OpTree *lpTree) const
	Checks if an op is in a particular tree, for debugging purposes.

bool	isInAnyTree () const
	Checks if an op is in any tree at all.

OpTreeHandler *	getTreeHandler () const
	Returns the treeHandler for a given Op.

bool	hasError () const

bool	opOrChildHasError () const

const Op *	getErroredOp () const

void	setPopUpScheme (PopUpScheme lScheme)

PopUpScheme	getPopUpScheme () const

bool	arePopUpsEnabled ()
	Returns whether a pop-up should be enabled for the next message, modifying internal data when necessary.

OpMessageHandler &	getMsgHandler ()

const OpMessageHandler &	getMsgHandler () const

std::string	getDebugInfo () const
	Returns a string of debug information about the op. For internal use.

std::string	getDetailedDebugInfo () const

bool	tryValidate (bool for_real=true)

virtual Iop *	iop ()
	Cast to an Iop. This is much cheaper and safer than using dynamic_cast.

virtual const Iop *	iop () const

virtual GeoOp *	geoOp ()
	Cast to a GeoOp. This is much cheaper and safer than using dynamic_cast.

virtual const GeoOp *	geoOp () const

virtual GeomOp *	geomOp ()
	Cast to a GeomOp. This is much cheaper and safer than using dynamic_cast.

virtual const GeomOp *	geomOp () const

virtual ParticleOp *	particleOp ()
	Cast to a ParticleOp. This is much cheaper and safer than using dynamic_cast.

virtual const ParticleOp *	particleOp () const

virtual DeepOnlyOp *	deepOnlyOp ()
	Cast to a DeepOnlyOp. This is much cheaper and safer than using dynamic_cast.

virtual const DeepOnlyOp *	deepOnlyOp () const

virtual AxisOp *	axisOp ()
	Cast to an AxisOp. This is much cheaper and safer than using dynamic_cast.

virtual const AxisOp *	axisOp () const

virtual CameraOp *	cameraOp ()
	Cast to an CameraOp. This is much cheaper and safer than using dynamic_cast.

virtual const CameraOp *	cameraOp () const

virtual LightOp *	lightOp ()
	Cast to an LightOp. This is much cheaper and safer than using dynamic_cast.

virtual const LightOp *	lightOp () const

virtual std::string	getLibraryName () const
	Return a label and version string to display library version info for the Node.

virtual VersionInfo	getLibraryVersion () const

virtual OpHints	opHints () const
	Return hints to control when and how this op will be evaluated by the top-down system.

virtual std::string	resolveKnobAsset (Knob *knob, const std::string &assetPath)

virtual bool	updateKnobsFromAsset (Knob *knob)

virtual void	_updateKnobsFromAsset (Knob *assetKnob, const ndk::asset::AssetData &assetData)

virtual const char *	Class () const =0

const std::string	libraryDisplayName () const

virtual const char *	displayName () const

virtual std::string	docsPath () const

virtual bool	onAction (const ViewerContext c, const DD::Image::Flags f, void d)

Op *	get (const Description *description)

Public Member Functions inherited from DD::Image::IopInfoOwner
const Info &	info () const

int	x () const

int	y () const

int	r () const

int	t () const

int	w () const

int	h () const

bool	is_constant () const

int	clampx (int x) const

int	clampy (int y) const

const Format &	format () const

const Format &	full_size_format () const

int	ydirection () const

bool	black_outside () const

ChannelMask	channels () const

const GeneralInfo &	generalInfo () const override

const Info2D &	info2D () const override

int	first_frame () const

int	last_frame () const

void	format (const Format &f)

void	full_size_format (const Format &f)

Static Public Member Functions
static Matrix4	get_format_matrix (const Format &format, float cx, float cy)

static const Intersection *	multisample_array (int n)

static unsigned int	jitter_array_size (int samples)

static const Intersection *	jitter_array (int samples)

Static Public Member Functions inherited from DD::Image::Iop
static Iop *	default_input (const OutputContext &)

static Op *	default_input (const Op *op)

static Channel	channel (const char *name)

static const char *	channel_name (Channel c)

Static Public Member Functions inherited from DD::Image::Op
static int	treeVersion ()

static bool	nukeBusy ()
	is nuke processing something on a parallel thread?

static Op *	create (Node node, const char name, Op *p_op)

static Op *	create (const char name, Op p_op)

static void	resetTimers ()
	reset all the performance timers

static void	setTimingEnabled (bool enabled)
	turn performance timing on or off

static bool	isTimingEnabled ()
	return whether performance timing is on or not

static const char *	script_result (bool py=false)

static void	script_unlock ()

static Op *	retrieveOp (const char node_path, GenerateType generate_op_type, const OutputContext generate_op_context=nullptr)

static Op *	retrieveOp (const char *node_path, const Hash &op_hash, int tree_version)

static void	all_forget_request ()

static void	new_request_pass ()

static double	callPendingClose (double seconds)

static void	clearPendingClose ()

static Op *	error_op ()

static const char *	error_message ()

static void	clearAbortAndError ()
	To be removed.

static void	SetDefaultPopUpEnable (bool lEnable)
	This is used by Nuke to indicate when ops using the default pop-up scheme should show pop-ups. Not recommended for customisation.

static std::string	getVersionInfoStr (const VersionInfo &versionInfo)
	Helper function to convert a VersionInfo tuple into a string.

static const Description *	find_description (const char name, const Op op_)

static int	message_f (char t, const char *,...)

static int	message_vf (char t, const char *, va_list)

static void	add_timeout (float t, TimeoutHandler, void *v=nullptr)

static void	repeat_timeout (float t, TimeoutHandler, void *=nullptr)

static bool	has_timeout (TimeoutHandler, void *=nullptr)

static void	remove_timeout (TimeoutHandler, void *=nullptr)

Static Public Attributes
static const char *	multisampling_table []
	Output sampling modes:

Static Public Attributes inherited from DD::Image::Iop
static bool	sPreserveCaches

Static Public Attributes inherited from DD::Image::Op
static unsigned	current_request_pass

static void(*	node_redraw_cb )(const Op *)

static void(*	print_name_cb )(std::ostream &, const Op *)

static void(*	status_callback )(const Op , float, float, const char , StatusFlags)

static const int	kInvalidVersion

static const VersionInfo	kUnsetVersion

Protected Member Functions
	Render (Node *node, bool enable_mip_filter=false)

void	_validate (bool) override

virtual void	overrideBBox (Box &f) const

void	_request (int x, int y, int r, int t, ChannelMask, int) override

void	engine (int y, int x, int r, ChannelMask, Row &) override

virtual bool	generate_render_primitives ()

virtual bool	evaluate_lights (Scene *scene)

virtual void	initialize ()

void	draw_primitives (int y, int x, int r, ChannelMask, Row &, const Row *bg)

void	_close () override

Protected Member Functions inherited from DD::Image::Iop
	Iop (Node *node)

void	_invalidate () override

void	_validate (bool for_real) override

virtual void	_request (int x, int y, int r, int t, ChannelMask, int count)

void	_open () override

void	_close () override

virtual void	doFetchPlane (ImagePlane &imagePlane)

bool	inUse () const override

void	copy_info (int input)

void	copy_info (int input, ChannelMask)

void	copy_info ()

void	clear_info ()

void	merge_info (int input=0)

void	merge_info (int input, ChannelMask)

void	mergeFrameRange (int input)

void	set_out_channels (ChannelMask m)

void	set_out_channels (ChannelSetInit m)

void	set_out_channels (Channel z)

void	raw_channels_from (int n)

void	set_out_channels (ChannelMask m, int n)

Iop *	asIop (Op *op) const

Transform *	getDefaultTransform () const

template<class TileType >
void	doSample (float cx, float cy, float w, float h, Filter *, Pixel &out)

template<class TileType >
float	do_sample_shadowmap (Iop map, bool map_is_one_over_z, float cx, float cy, float W, float H, Filter filter, float Pz)

Protected Member Functions inherited from DD::Image::Op
	Op (Node *node)
	The constructor is protected so only subclasses can create the base class.

virtual void	_knobStorePrep (const OutputContext &storeContext)
	The subclass-specific portion of knobStorePrep(). See that method for more info.

virtual void	_knobStorePost (const OutputContext &storeContext, Hash &hash)
	The subclass-specific portion of knobStorePost(). See that method for more info.

virtual void	_invalidate ()

virtual void	_validate (bool for_real)

virtual void	_open ()

virtual void	_close ()

Op *	create (Node node, const char name)

Op *	create (const char *name)

HandlesMode	anyInputHandles (ViewerContext *)
	return if any of the inputs (recursively) wish to draw handles

HandlesMode	anyKnobHandles (ViewerContext *)
	return if any of the knobs on this node wish to draw handles

void	build_input_handles (ViewerContext *)

void	build_knob_handles (ViewerContext *)

void	disallowNoTrees ()
	Call this to tell the op that it should always have op trees for normal behaviour (for internal use)

virtual HandlesMode	doAnyHandles (ViewerContext *ctx)

virtual PrevalidateResult	doPreValidate (ViewerContext ctx=nullptr, PreValidateContext =nullptr)

Protected Attributes
TextureFilter	texture_filter_
	Default filter to use in texture filtering.

int	projection_mode_
	Point projection mode.

int	max_tessellation_
	Threshold to limit recursive subdivision.

int	blend_operation_
	Default blending operation for textures.

int	multisampling_
	Output sampling modes.

int	samples_
	User set number of samples to render.

ShutterControls	shutter_
	shutter controls

double	spatial_jitter_
	User set jittering of sample in raster.

double	temporal_jitter_
	User set jittering of sample in time.

const Intersection *	jitter
	XY jitter array to use - based on total samples.

unsigned	input_scenes
	Number of scenes renderer gets from it's input.

unsigned	render_scenes
	Number of scenes to render.

const Intersection *	multisample_array_
	Multisampling array to use.

double	overscanX_

double	overscanY_
	overscan size of the frame buffer

Format	overscanFormat_
	overscan format

int	junk

Box3	world_bbox
	Intersected world-space bbox of all scenes.

Box	screen_bbox
	Intersected screen-space bbox of all scenes.

int	output_motion_vectors
	Whether renderer outputs motion vector channels.

Channel	MB_channel [3]
	Motion vector channels to output.

bool	generate_primitives
	Threading lock to keep other threads waiting.

std::vector< Scene * >	scenes_
	List of Scenes, one per sample.

Protected Attributes inherited from DD::Image::Iop
ChannelSet	out_channels_
	protected so validate() can directly modify it

int	raw_channels_from_

Protected Attributes inherited from DD::Image::Op
bool	_haveHash
	whether the _hash actually has been set by a call to invalidate(Hash) ever.

bool	_varyingOutputHash
	whether the hash value will animate over time

Hash	_editState
	Op's current edit state, usually the combination of input & knob edit states.

Protected Attributes inherited from DD::Image::IopInfoOwner
Info	info_

Additional Inherited Members
Public Attributes inherited from DD::Image::Op
const MetaData::Bundle *	metaCache

Hash	metaCacheHash

Detailed Description

Base class for rendering a 3D scene to an image.

Constructor & Destructor Documentation

◆ Render()

Render::Render	(	Node *	node,
		bool	enable_mip_filter = `false`
	)

protected

Base class constructor.

References DD::Image::Chan_U, DD::Image::eDisableMotionVector, generate_primitives, input_scenes, jitter, jitter_array(), max_tessellation_, MB_channel, multisampling_, output_motion_vectors, overscanY_, projection_mode_, render_scenes, samples_, spatial_jitter_, and temporal_jitter_.

Member Function Documentation

◆ render_camera()

CameraOp * Render::render_camera ( int sample = 0 )

virtual

Return a CameraOp for 'sample'. The base class returns null.

Reimplemented in DD::Image::RenderScene.

Referenced by _validate().

◆ render_geo()

GeoOp * DD::Image::Render::render_geo ( int sample = 0 )

pure virtual

Return a GeoOp for 'sample'. This GeoOp will have it's cache enabled which will be created during _validate(). The base class returns 0.

Implemented in DD::Image::RenderScene.

Referenced by _validate().

◆ camera_matrix()

Matrix4 Render::camera_matrix ( int sample = 0 )

virtual

Calculate the camera's inverse local matrix for 'sample'. Base class pulls the camera away in Z by the format's width, and XY centered. Remember, this is the camera's inverse matrix, so translations are reversed.

Reimplemented in DD::Image::DepthMapRender, and DD::Image::RenderScene.

References DD::Image::IopInfoOwner::format(), DD::Image::Format::height(), DD::Image::Matrix4::makeIdentity(), DD::Image::Matrix4::translate(), and DD::Image::Format::width().

Referenced by _validate().

◆ projection_matrix()

Matrix4 Render::projection_matrix ( int sample = 0 )

virtual

Calculate the camera projection matrix for 'sample'. Base class implementation sets up a simple projection with a lens of 1.

Reimplemented in DD::Image::RenderScene.

References DD::Image::IopInfoOwner::format(), DD::Image::IopInfoOwner::h(), DD::Image::Format::height(), DD::Image::Matrix4::projection(), DD::Image::Matrix4::scaling(), DD::Image::IopInfoOwner::w(), and DD::Image::Format::width().

Referenced by _validate().

◆ format_matrix()

void Render::format_matrix ( int sample = 0 )

virtual

obsolete virtual function, do not use. Call get_format_matrix() instead

◆ get_format_matrix() [1/2]

Matrix4 Render::get_format_matrix	(	float	cx,
		float	cy
	)

Calculate the transformation from post-projection NDC to pixel space. cx,cy are where in the pixel the -1,-1 corner should be.

References get_format_matrix(), and DD::Image::IopInfoOwner::info_.

Referenced by _validate(), DD::Image::RenderScene::build_handles(), and get_format_matrix().

◆ get_format_matrix() [2/2]

Matrix4 Render::get_format_matrix	(	const Format &	format,
		float	cx,
		float	cy
	)

static

Calculate the transformation from post-projection NDC to pixel space. cx,cy are where in the pixel the -1,-1 corner should be.

References DD::Image::IopInfoOwner::h(), DD::Image::Format::height(), DD::Image::Matrix4::makeIdentity(), DD::Image::Matrix4::scale(), DD::Image::Matrix4::translate(), DD::Image::IopInfoOwner::w(), and DD::Image::Format::width().

◆ _validate()

void Render::_validate ( bool for_real )

overrideprotectedvirtual

Base-class implementation allocates a Scene structure for each time sample and enables the generation of primitives in the first engine() call.

Reimplemented from DD::Image::Iop.

Reimplemented in DD::Image::RenderScene.

Referenced by DD::Image::RenderScene::_validate().

◆ overrideBBox()

virtual void DD::Image::Render::overrideBBox ( Box & f ) const

inlineprotectedvirtual

called in Render::_validate, to allow the deriving class to override the bbox.

Referenced by _validate().

◆ _request()

void Render::_request	(	int	x,
		int	y,
		int	r,
		int	t,
		ChannelMask	out_channels,
		int	count
	)

overrideprotectedvirtual

Render just texture-maps the geometry with input0(). So the request figures out what uv's will be requested and that is the area needed.

Reimplemented from DD::Image::Iop.

Reimplemented in DD::Image::RenderScene.

References DD::Image::Box3::expand(), fast_floor(), DD::Image::IopInfoOwner::format(), DD::Image::Box::h(), DD::Image::IopInfoOwner::info(), DD::Image::Iop::input0(), DD::Image::Iop::out_channels(), DD::Image::Box3::r(), DD::Image::Scene::request(), DD::Image::Iop::request(), scenes_, DD::Image::GeometryList::size(), DD::Image::Box3::t(), DD::Image::UV, DD::Image::Box::w(), DD::Image::Box::x(), and DD::Image::Box::y().

◆ engine()

void Render::engine	(	int	y,
		int	x,
		int	r,
		ChannelMask	channels,
		Row &	out
	)

overrideprotectedvirtual

Default engine calls initialize() (which calls generate_render_primitives()) and then calls draw_primitives() with bg=0.

Implements DD::Image::Iop.

References DD::Image::IopInfoOwner::channels(), draw_primitives(), initialize(), DD::Image::IopInfoOwner::r(), DD::Image::IopInfoOwner::x(), and DD::Image::IopInfoOwner::y().

◆ generate_render_primitives()

bool Render::generate_render_primitives ( )

protectedvirtual

Initialize each sample Scene object and generate it's renderable primitives.

Reimplemented in DD::Image::DepthMapRender.

References DD::Image::Op::aborted(), DD::Image::Scene::delete_render_primitives(), DD::Image::Scene::generate_render_primitives(), DD::Image::GeoInfo::matrix, DD::Image::Scene::object_transforms_, scenes_, and DD::Image::Scene::transforms_.

Referenced by initialize().

◆ evaluate_lights()

bool Render::evaluate_lights ( Scene * scene )

protectedvirtual

Evaluate all the scene lights.

References DD::Image::Scene::evaluate_lights().

Referenced by _validate().

◆ initialize()

void Render::initialize ( )

protectedvirtual

engine() must call this before it can look at the primitives

References DD::Image::Op::aborted(), generate_primitives, generate_render_primitives(), and texture_filter_.

Referenced by engine().

◆ draw_primitives()

void Render::draw_primitives	(	int	y,
		int	x,
		int	r,
		ChannelMask	channels,
		Row &	out_row,
		const Row *	bg
	)

protected

Flat renderer used by gridwarp. If bg is non-zero, it is a row containing a background image which is used anywhere there are no primitives (note that it does not do an OVER, instead the alpha channel is replaced by the rendered ones just like all other channels).

References DD::Image::IopInfoOwner::channels(), DD::Image::Row::copy(), DD::Image::Row::erase(), DD::Image::Render::Span::initialize(), DD::Image::Iop::input0(), DD::Image::Quadtree< T >::intersections(), MAX(), MIN(), DD::Image::Op::node(), DD::Image::Box3::r(), DD::Image::IopInfoOwner::r(), DD::Image::Render::Span::r, DD::Image::Render::Span::rprimitive(), DD::Image::VertexContext::sample(), scenes_, DD::Image::Box3::t(), DD::Image::VertexContext::vdX, DD::Image::Render::Span::vtx, DD::Image::Render::Span::vX, DD::Image::Row::writable(), DD::Image::IopInfoOwner::x(), and DD::Image::IopInfoOwner::y().

Referenced by engine().

◆ _close()

void Render::_close ( )

overrideprotectedvirtual

Reimplemented from DD::Image::Iop.

◆ knobs()

void Render::knobs ( Knob_Callback f )

overridevirtual

Reimplemented from DD::Image::Op.

◆ node_color()

unsigned Render::node_color ( ) const

overridevirtual

Reimplemented from DD::Image::Op.

◆ hitThresholdDistance()

float Render::hitThresholdDistance ( ) const

Return the distance away that a span/pixel cannot intersect

References multisampling_.

◆ multisample_array()

const Intersection * Render::multisample_array ( int n )

static

Return multisample array for the current output sampling mode.

Referenced by _validate().

◆ jitter_array_size()

unsigned int Render::jitter_array_size ( int samples )

static

Determine the size of jitter array to use based on the sample count 'samples'.

◆ jitter_array()

const Intersection * Render::jitter_array ( int samples )

static

Determine best jitter array to use based on the sample count 'samples'.

Referenced by _validate(), and Render().

◆ multisamples()

int Render::multisamples ( ) const

virtual

Return the number of samples in the current output sampling mode.

References multisampling_.

◆ doAnyHandles()

Op::HandlesMode Render::doAnyHandles ( ViewerContext * ctx )

overridevirtual

Reimplemented from DD::Image::Op.

Reimplemented in DD::Image::RenderScene.

◆ build_handles()

void Render::build_handles ( ViewerContext * ctx )

overridevirtual

Draw the internal geometry only when the panel's open.

Reimplemented from DD::Image::Iop.

Reimplemented in DD::Image::RenderScene.

References buildGeoInfoHandle(), DD::Image::ViewerContext::connected(), DD::Image::Iop::input0(), DD::Image::Op::panel_visible(), DD::Image::Op::pushed(), DD::Image::Iop::set_texturemap(), DD::Image::SHOW_OBJECT, DD::Image::SHOW_PUSHED_OBJECT, DD::Image::ViewerContext::transform_mode(), DD::Image::Op::validate(), and DD::Image::VIEWER_2D.

◆ buildGeoInfoHandle()

void Render::buildGeoInfoHandle	(	ViewerContext *	ctx,
		DrawHandleCallbackFunc	cb
	)

this sets the objects in the scene to be drawable (textured) and then calls GeoInfo::build_handles()

References DD::Image::ViewerContext::add_draw_handle(), DD::Image::CONNECTED, DD::Image::ViewerContext::connected(), DD::Image::IopInfoOwner::info(), DD::Image::Iop::input0(), DD::Image::Op::node(), and scenes_.

Referenced by build_handles().

Classes

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Render()

Member Function Documentation

◆ render_camera()

◆ render_geo()

◆ camera_matrix()

◆ projection_matrix()

◆ format_matrix()

◆ get_format_matrix() [1/2]

◆ get_format_matrix() [2/2]

◆ _validate()

◆ overrideBBox()

◆ _request()

◆ engine()

◆ generate_render_primitives()

◆ evaluate_lights()

◆ initialize()

◆ draw_primitives()

◆ _close()

◆ knobs()

◆ node_color()

◆ hitThresholdDistance()

◆ multisample_array()

◆ jitter_array_size()

◆ jitter_array()

◆ multisamples()

◆ doAnyHandles()

◆ build_handles()

◆ buildGeoInfoHandle()