DD::Image::Triangle Class Reference

Inherits DD::Image::PolygonPrimitive.

Public Member Functions
const char *	Class () const
	Triangle (int p0=0, int p1=1, int p2=2)
	Triangle (const Triangle &)
Triangle &	operator= (const Triangle &b)
Primitive *	duplicate () const
Vector3	average_center (const PointList *) const
	Returns the xyz center average of the triangle. More...
bool	IntersectsRay (const Ray &ray, int n, const PointList *pointList, CollisionResult *result) const
	Test for the intersection of this primitive with a given ray. More...
void	validate (PrimitiveContext *)
unsigned	faces () const
void	draw_wireframe (ViewerContext *, PrimitiveContext *, Primitive *prev_prim=nullptr) const
void	draw_solid (ViewerContext *, PrimitiveContext *, Primitive *prev_prim=nullptr) const
void	draw_solid_face (int n, ViewerContext *, PrimitiveContext *) const
void	draw_primitive_num (ViewerContext *, PrimitiveContext *) const
void	draw_primitive_normal (ViewerContext *, PrimitiveContext *) const
void	print_info () const
PrimitiveType	getPrimitiveType () const
Public Member Functions inherited from DD::Image::PolygonPrimitive
	PolygonPrimitive (unsigned vertices=0)
virtual void	tessellate (Scene *, PrimitiveContext *) const
virtual void	tessellateFace (int faceIndex, Scene *scene, PrimitiveContext *ptx, VertexContext *vtx) const
Public Member Functions inherited from DD::Image::Primitive
virtual void	vertex_shader (int v, Scene *, PrimitiveContext *, VArray &out, const Vector3 *normal=nullptr) const
virtual void	vertex_shader (int v, Scene *, PrimitiveContext *, VertexContext &, VArray &out, const Vector3 *normal=nullptr) const
	Primitive (unsigned vertices=0)
	Primitive (const Primitive &)
virtual	~Primitive ()
void	getDataArray (int n, ViewerContext *ctx, PrimitiveContext *ptx, std::vector< Vector3 > &pntArray, std::vector< Vector3 > &normalArray, std::vector< Vector4 > &uvOrColArray, bool &validUV) const
const unsigned &	vertex (unsigned v) const
unsigned &	vertex (unsigned v)
unsigned	vertices () const
void	offset_point_indices (int offset)
unsigned	vertex_offset () const
void	build_index_array (unsigned *indices, unsigned primitive, unsigned vertex) const
unsigned	add_vertex (unsigned point_index)
unsigned	add_vertices (unsigned num)
virtual Vector3	average_center_and_bounds (int f, const PointList *points, Vector3 &min, Vector3 &max) const
virtual Vector3	face_average_center (int n, const PointList *points) const
virtual unsigned	face_vertices (int n) const
virtual void	get_face_vertices (int n, unsigned *array) const
virtual Box3	get_bbox (const GeoInfo *info) const
virtual Vector3	get_face_normal (int n, const PointList *points) const
virtual Vector3	get_geometric_normal (int v, const PointList *points) const
virtual int	get_vertex_faces (int v, std::vector< int > &faces) const
virtual bool	faceUsesVertex (unsigned int faceIdx, unsigned int vertIdx) const
Iop *	material () const
Iop *	renderingShader (const GeoInfo *info) const
const Vector3 &	normal () const
virtual Vector3	vertex_normal (unsigned v, const PointList *) const
virtual void	draw_vertex_num (ViewerContext *, PrimitiveContext *) const
virtual void	draw_vertex_normals (ViewerContext *, PrimitiveContext *) const
virtual void	draw_vertex_uvs (ViewerContext *, PrimitiveContext *) const
void *	operator new (size_t size)
void	operator delete (void *mem)
void *	operator new[] (size_t size)
void	operator delete[] (void *mem)

Protected Member Functions
void	copy (const Triangle *)
Protected Member Functions inherited from DD::Image::Primitive
void	draw_wireframe_vertex (int v, ViewerContext *, PrimitiveContext *) const
void	draw_solid_vertex (int v, ViewerContext *, PrimitiveContext *) const
void	copy (const Primitive *)
bool	PolyIntersectsRay (const Ray &ray, int n, const PointList *pointList, CollisionResult *result) const

Additional Inherited Members
Static Public Member Functions inherited from DD::Image::Primitive
static void	draw_normal (const Vector3 &p, const Vector3 &n, ViewerContext *, PrimitiveContext *)
Protected Attributes inherited from DD::Image::Primitive
std::vector< unsigned, STL3DAllocator< unsigned > >	vertex_
	Point indices.
unsigned	vertex_offset_
	Vertex attribute starting index.
Vector3	normal_
	Normal determined from vertex positions.
Iop *	material_
	Material assignment.

Detailed Description

Simple triangle primitive.

Constructor & Destructor Documentation

Triangle::Triangle	(	int	p0 = 0,
		int	p1 = 1,
		int	p2 = 2
	)

Constructor accepting 3 points.

References DD::Image::Primitive::vertex_.

Referenced by duplicate().

Triangle::Triangle

(

const Triangle &

b

)

Copy constuctor.

References copy().

Member Function Documentation

void Triangle::copy ( const Triangle *  b )

protected

Destructive copy.

References DD::Image::Primitive::copy().

Referenced by Triangle().

Primitive * Triangle::duplicate ( ) const

virtual

Copy this Triangle into a new one, and return a pointer to it. Vertex data is duplicated, point indices are unchanged.

Implements DD::Image::Primitive.

References Triangle().

Vector3 Triangle::average_center ( const PointList *  points ) const

virtual

Returns the xyz center average of the triangle.

Return the primitive's xyz local-space center.

Reimplemented from DD::Image::Primitive.

bool DD::Image::Triangle::IntersectsRay ( const Ray &  ray, int  n, const PointList *  pointList, CollisionResult *  result  ) const

inlinevirtual

Test for the intersection of this primitive with a given ray.

If a collision is detected, information is returned in the collision result

Reimplemented from DD::Image::Primitive.

References DD::Image::Primitive::PolyIntersectsRay().

void Triangle::validate ( PrimitiveContext *  ptx )

virtual

Calculate the surface normal - points out with a ccw winding.

Reimplemented from DD::Image::Primitive.

References DD::Image::Primitive::normal_, DD::Image::Vector3::normalize(), and DD::Image::Primitive::validate().

void Triangle::draw_solid_face ( int  n, ViewerContext *  ctx, PrimitiveContext *  ptx  ) const

virtual

Draw the single face as a filled triangle.

Reimplemented from DD::Image::Primitive.

References DD::Image::Vector3::array(), and DD::Image::Primitive::vertex_.