DD::Image::GeoInfo Class Reference

Contains a list of points and geometric primitives. More...

Classes
struct	Cache

Public Types
enum	GeoFlags { DEFAULT, NO_RAY_CAST, POLYGON_OFFSET }
typedef RefCountedPtr< DrawLists >	DrawListsPtr

Public Member Functions
	GeoInfo ()
void	copy (const GeoInfo *b)
void	validate ()
	Get primitives and attributes ready for display/rendering. More...
void	update_bbox ()
	Calculate axis-aligned bounding box. More...
bool	ignoreForRayCasting () const
void	setGeoInfoFlag (unsigned int flags)
void	clearGeoInfoFlag (unsigned int flags)
const Primitive *	primitive (unsigned n) const
const Box3 &	bbox () const
unsigned	output_index () const
unsigned	primitives () const
const Primitive **	primitive_array () const
unsigned	vertices () const
unsigned	points () const
const PointList *	point_list () const
const Vector3 *	point_array () const
DrawListsPtr	callLists () const
const Cache *	get_cache_pointer () const
void	setVertexCount (int vertices)
const Hash &	src_id () const
const Hash &	out_id () const
void	set_out_id (DD::Image::Hash newId)
unsigned	size (int group) const
const Attribute *	get_attribute (const char *name) const
const Attribute *	get_typed_attribute (const char *name, int type) const
const Attribute *	get_group_attribute (int group, const char *name) const
const Attribute *	get_typed_group_attribute (int group, const char *name, int type) const
int	get_attribcontext_count () const
const AttribContext *	get_attribcontext (int index) const
const AttribContext *	get_attribcontext (const char *name) const
const AttribContext *	get_typed_attribcontext (const char *name, int type) const
const AttribContext *	get_group_attribcontext (int group, const char *name) const
const AttribContext *	get_typed_group_attribcontext (int group, const char *name, int type) const
void	delete_group_attribute (int group, const char *name, int type=INVALID_ATTRIB)
PrimitiveContext *	getPrimitiveContext ()
bool	construct_normals (int group, Attribute *, float threshold=0.0f) const
bool	orient_normals (int group, Attribute *, const Vector3 &P, bool invert=false) const
void	draw (ViewerContext *)
void	draw_icons (ViewerContext *)
void	draw_bbox (ViewerContext *)
bool	draw_wireframe (ViewerContext *)
bool	draw_solid (ViewerContext *)
bool	draw_pick_ids (ViewerContext *ctx, unsigned int offset)
bool	draw_selectable_items (ViewerContext *ctx)
bool	draw_selected_items (ViewerContext *ctx, const GeoSelection &selection)
void	print_info (std::ostream &o)
void	trash_display_list (bool trash=true)
void	trash_selected_display_list ()
Box3	getTransformedBBox ()

Public Attributes
Matrix4	matrix
	Transformation matrix.
Iop *	material
	Overall material assignment.
bool	useMaterialContext
	Use OutputContext with material.
DD::Image::OutputContext	materialContext
	OutputContext for material.
RenderMode	render_mode
	Turn Render output on/off.
Display3DMode	display3d
	How to draw (see ViewerContext style3d)
bool	selected
	Draw with selected wireframe.
bool	selectable
	Object can be selected.
GeoInfoRenderState	renderState
GeoOp *	source_geo
	Last non-merge GeoOp.
GeoOp *	final_geo
	Last GeoOp before a merge.
GeoOp *	select_geo
	Last selectable GeoOp.
GeoOp *	recursion_geo
	GeoOp which started a recursing loop.
bool	valid_source_node_gl_color
	true if gl node color is valid
unsigned	source_node_gl_color
	Source gl node color for drawing.
const AttribContext *	UV_ref
	Reference to the primary UV.
const AttribContext *	N_ref
	Reference to the primary normal.
const AttribContext *	Cf_ref
	Reference to the primary surface color.
const AttribContext *	PW_ref
	Reference to the world-space point.
const AttribContext *	VEL_ref
	Reference to the point velocity.
Attribute *	selections [Group_Last]
	Group selection attributes.
unsigned	selected_items_list
unsigned int	selected_items_IB
unsigned int	selected_items_CB
unsigned int	selected_indices_count

Friends
class	GeoOp
class	GeometryList
class	Primitive

Detailed Description

Contains a list of points and geometric primitives.

3D data is stored in a Scene object. The Scene contains a vector of these, each one describes a single geometric object that is shaded with a single set of shaders and transformed by a single matrix.

Constructor & Destructor Documentation

DD::Image::GeoInfo::GeoInfo

(

)

Constructor clears all the geometry lists and nulls the materials.

Member Function Documentation

void DD::Image::GeoInfo::copy

(

const GeoInfo *

b

)

Point data is duplicated and a shallow copy of primitive data is made.

void DD::Image::GeoInfo::validate

(

)

Get primitives and attributes ready for display/rendering.

Append another GeoInfo's geometry into this one. Point data is duplicated and every primitive is copied.

Re-assign the standard attribute references from the current list.

Referenced by DD::Image::GeoOp::build_scene(), DD::Image::Scene::generate_render_primitives(), DD::Image::ModifyGeo::geometry_engine(), and DD::Image::Scene::validate().

void DD::Image::GeoInfo::update_bbox

(

)

Calculate axis-aligned bounding box.

Get the GeoInfo's bounding-box up-to-date by finding a bounding volume that fits around all points. Alternate bounding geometry such as spheres can be calculated at this time. Produces bounding-box by adding each point to the local bounding box.

const Primitive* DD::Image::GeoInfo::primitive ( unsigned  n ) const

inline

Get primitive.

void DD::Image::GeoInfo::setVertexCount ( int  vertices )

inline

Allows cache vertex count to be manually overridden to keep attributes in sync with primitives. Some Primitive types do not have vertex counts that can be predicted at the moment the primitive is added to the GeoInfo leading to a difference in total vertex count causing vertex Attributes to have incorrect sizes.

const Hash& DD::Image::GeoInfo::src_id ( ) const

inline

Return the object ids.

unsigned DD::Image::GeoInfo::size

(

int

group

)

const

Returns the size of the group list.

const Attribute* DD::Image::GeoInfo::get_attribute

(

const char *

name

)

const

Find a valid attribute by name at each level of possible assignment in this order of importance: Vertex, Point, Material, Primitive, then Object. If found return a pointer to the Attribute, otherwise NULL.

const Attribute* DD::Image::GeoInfo::get_typed_attribute	(	const char *	name,
		int	type
	)		const

Search for an attribute by name and type, returning its pointer if found.

const Attribute* DD::Image::GeoInfo::get_group_attribute	(	int	group,
		const char *	name
	)		const

Search for an attribute by name and group, returning its pointer if found.

Referenced by DD::Image::Render::_request().

const Attribute* DD::Image::GeoInfo::get_typed_group_attribute	(	int	group,
		const char *	name,
		int	type
	)		const

Search for an attribute by name, group and type, returning its pointer if found.

const AttribContext* DD::Image::GeoInfo::get_attribcontext

(

const char *

name

)

const

Find a valid attribute by name at each level of possible assignment in this order of importance: Vertex, Point, Material, Primitive, then Object. If found return a pointer to the AttribContext structure which has the attribute pointer and it's group info.

const AttribContext* DD::Image::GeoInfo::get_typed_attribcontext	(	const char *	name,
		int	type
	)		const

Search for an attribute by name and type and return a const reference to it if found.

const AttribContext* DD::Image::GeoInfo::get_group_attribcontext	(	int	group,
		const char *	name
	)		const

Search for an attribute by name and group and return a const reference to it if found.

const AttribContext* DD::Image::GeoInfo::get_typed_group_attribcontext	(	int	group,
		const char *	name,
		int	type
	)		const

Search for an attribute by name, group and type, returning its pointer if found.

void DD::Image::GeoInfo::delete_group_attribute	(	int	group,
		const char *	name,
		int	type = INVALID_ATTRIB
	)

Clears the reference pointer to the attribute, effectively deleting it.

bool DD::Image::GeoInfo::orient_normals	(	int	group,
		Attribute *	,
		const Vector3 &	P,
		bool	invert = false
	)		const

Point the normals of the passed in attribute at point Pl. Returns true if successful.

void DD::Image::GeoInfo::draw

(

ViewerContext *

)

Draw the GeoInfo's geometry in OpenGL.

void DD::Image::GeoInfo::draw_bbox

(

ViewerContext *

)

Draw the surrounding bbox. This is drawn separately from the object primitives because the bbox has already been transformed by the matrix.

bool DD::Image::GeoInfo::draw_wireframe

(

ViewerContext *

)

Draw wireframe of the object, by calling draw_wireframe on all the primitives. This compiles an OpenGL call list, which is reused until invalidate() is called. Returns false if there is some problem creating the call list (though everything ignores this)

bool DD::Image::GeoInfo::draw_solid

(

ViewerContext *

)

Draw shaded version the object, by calling draw_solid on all the primitives. This compiles an OpenGL call list, which is reused until invalidate() is called. Returns false if there is some problem creating the call list (though everything ignores this)

Referenced by DD::Image::Black::shade_GL().

bool DD::Image::GeoInfo::draw_pick_ids	(	ViewerContext *	ctx,
		unsigned int	offset
	)

Draw selectable parts of the object. This compiles an OpenGL call list, which is reused until invalidate() is called. Returns false if there is some problem creating the call list (though everything ignores this).

bool DD::Image::GeoInfo::draw_selected_items	(	ViewerContext *	ctx,
		const GeoSelection &	selection
	)

Draw selected parts of the object. This compiles an OpenGL call list, which is reused until invalidate() is called. Returns false if there is some problem creating the call list (though everything ignores this).

void DD::Image::GeoInfo::print_info

(

std::ostream &

o

)

Primary use is to print GeoInfo information into Nuke's info box.

Referenced by DD::Image::GeoOp::print_info().

Member Data Documentation

unsigned DD::Image::GeoInfo::selected_items_list

OpenGL call list management.

Referenced by DD::Image::GeoOp::build_scene().