Inherited by DD::Image::Particles, DD::Image::ParticlesSprite, DD::Image::Point, and DD::Image::PolygonPrimitive.
Public Member Functions | |
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 () |
virtual const char * | Class () const =0 |
virtual Primitive * | duplicate () const =0 |
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 (const PointList *) const |
Returns the xyz center average of the primitive. More... | |
virtual Vector3 | average_center_and_bounds (int f, const PointList *points, Vector3 &min, Vector3 &max) const |
virtual unsigned | faces () const =0 |
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 | IntersectsRay (const Ray &ray, int n, const PointList *pointList, CollisionResult *result) const |
virtual void | validate (PrimitiveContext *) |
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 | tessellate (Scene *, PrimitiveContext *) const =0 |
virtual void | draw_wireframe (ViewerContext *, PrimitiveContext *, Primitive *prev_prim=nullptr) const =0 |
virtual void | draw_solid (ViewerContext *, PrimitiveContext *, Primitive *prev_prim=nullptr) const =0 |
virtual void | draw_solid_face (int n, ViewerContext *, PrimitiveContext *) const |
virtual void | draw_primitive_normal (ViewerContext *, PrimitiveContext *) const |
virtual void | draw_primitive_num (ViewerContext *, PrimitiveContext *) 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 |
virtual void | print_info () const |
virtual PrimitiveType | getPrimitiveType () const |
void * | operator new (size_t size) |
void | operator delete (void *mem) |
void * | operator new[] (size_t size) |
void | operator delete[] (void *mem) |
Static Public Member Functions | |
static void | draw_normal (const Vector3 &p, const Vector3 &n, ViewerContext *, PrimitiveContext *) |
Protected Member Functions | |
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 |
Protected Attributes | |
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. | |
Friends | |
class | GeoInfo |
class | GeometryList |
class | Scene |
This is the base class of anything renderable!
We use this class to handle renderable objects that can have simple geometry such as triangles, spheres, etc.
Primitives are contained within GeoInfo structures which are responsible for their maintenance.
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virtual |
Base destructor.
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protected |
Draw just the xyz position of a vertex in OpenGL
References DD::Image::Vector3::array(), and vertex_.
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protected |
Draw the vertex with normals and point color.
References DD::Image::Vector3::array(), DD::Image::GeoInfo::Cf_ref, DD::Image::GeoInfo::display3d, DD::Image::ViewerContext::display3d(), DD::Image::GeoInfo::N_ref, normal_, DD::Image::GeoInfo::UV_ref, vertex_, and vertex_offset_.
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protected |
Destructive copy.
References material_, normal_, vertex_, and vertex_offset_.
Referenced by DD::Image::Triangle::copy(), DD::Image::Particles::copy(), DD::Image::Polygon::copy(), DD::Image::ParticlesSprite::copy(), DD::Image::Mesh::copy(), and Primitive().
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protected |
Polygon face test for the intersection of this primitive face with a given ray .
References face_vertices(), faces(), and get_face_vertices().
Referenced by DD::Image::Triangle::IntersectsRay(), DD::Image::Polygon::IntersectsRay(), and DD::Image::Mesh::IntersectsRay().
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virtual |
Fill in the VArray with the correct values for this vertex. The values in this array as set by each vertex in the primitive are linerly interpolated by the renderer and passed to the fragment_shader.
Before being passed to the fragment_shader, everything is divided by w and w is replaced with 1/w. This is to produce a linearly-interpolated value. Probably this function should do the division, not the caller!
I guess subclasses could move the points around, but that probably could be done by the shaders instead...
Referenced by DD::Image::Mesh::tessellateFace(), and DD::Image::Scene::validate().
void Primitive::getDataArray | ( | int | n, |
ViewerContext * | ctx, | ||
PrimitiveContext * | ptx, | ||
std::vector< Vector3 > & | pntArray, | ||
std::vector< Vector3 > & | normalArray, | ||
std::vector< Vector4 > & | uvOrColArray, | ||
bool & | validUV | ||
) | const |
Return the data in three arrays pntArray, normalArray, and uvOrColArray. If the validUV is set to true than the uv/color array contains the uv values or else color values. This method is based on the draw_solid_vertex().
References DD::Image::GeoInfo::Cf_ref, DD::Image::GeoInfo::display3d, DD::Image::ViewerContext::display3d(), DD::Image::GeoInfo::N_ref, DD::Image::GeoInfo::UV_ref, vertex_, and vertex_offset_.
void Primitive::offset_point_indices | ( | int | offset | ) |
Offset point list indices for all vertices.
References vertex_.
unsigned Primitive::add_vertex | ( | unsigned | point_index | ) |
Append a vertex to a primitive and assign it a point index. Returns the starting index in the vertex list.
References vertex_.
unsigned Primitive::add_vertices | ( | unsigned | num | ) |
Add 'num' of vertices to primitive. Returns the starting index in the vertex list.
References vertex_.
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Returns the xyz center average of the primitive.
Return the primitive's xyz local-space center.
Reimplemented in DD::Image::Point, and DD::Image::Triangle.
Referenced by draw_primitive_normal(), draw_primitive_num(), draw_vertex_num(), and draw_vertex_uvs().
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Returns the xyz center average of the primitive, plus local space bounds.
Reimplemented in DD::Image::Point.
References face_vertices(), and get_face_vertices().
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pure virtual |
Returns the number of sub faces this primitive generates. Pure virtual.
Referenced by DD::Image::GeometryList::add_primitive(), DD::Image::ViewFrustum::getVisibility(), PolyIntersectsRay(), and DD::Image::Scene::validate().
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inlinevirtual |
Returns the xyz center average of the sub face. Base class returns the primitive center.
Reimplemented in DD::Image::Mesh.
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inlinevirtual |
Returns the number of vertices for the sub face.
Referenced by DD::Image::GeometryList::add_primitive(), average_center_and_bounds(), faceUsesVertex(), get_face_vertices(), DD::Image::ViewFrustum::getVisibility(), PolyIntersectsRay(), and DD::Image::Scene::validate().
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Fill the pre-allocated array with vertices constituting the sub face.
Reimplemented in DD::Image::Mesh.
References face_vertices().
Referenced by average_center_and_bounds(), faceUsesVertex(), DD::Image::ViewFrustum::getVisibility(), PolyIntersectsRay(), and DD::Image::Scene::validate().
Returns the primitive bounding box
References DD::Image::Box3::expand().
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inlinevirtual |
Returns the normal for face.
Reimplemented in DD::Image::Mesh.
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inlinevirtual |
Return the geometric normal for vertex.
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inlinevirtual |
Return the number of faces that vertex connects to and fills in the list of face indices.
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inlinevirtual |
Test for the intersection of this primitive face with a given ray .
Reimplemented in DD::Image::Mesh, DD::Image::Polygon, and DD::Image::Triangle.
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inlinevirtual |
Initialize any variables prior to display or rendering.
Reimplemented in DD::Image::Mesh, and DD::Image::Triangle.
Referenced by DD::Image::Triangle::validate(), and DD::Image::Mesh::validate().
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Does this face in this primitive reference this vertex?
References face_vertices(), and get_face_vertices().
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inline |
Returns a normal vector for the whole primitive. The subclass initializes this (by setting the normal_ member) to a vector that points out of "front" surface of the polygon. This normal is used if there is no normal attribute or zero-length normal for the points. It is also used to flip normals that appear to be backwards when rendering in OpenGL.
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inlinevirtual |
Returns a normal that best represents the normal at point's location on the primitive. Base class ignores the vertex argument and returns the primitive's base normal.
Reimplemented in DD::Image::Mesh.
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Draw a sub-face as a filled polygon.
Reimplemented in DD::Image::Mesh, DD::Image::Polygon, and DD::Image::Triangle.
References DD::Image::Vector3::array(), and vertex_.
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Draw primitive's normal as a short line coming from it's center.
Reimplemented in DD::Image::Mesh.
References average_center(), draw_normal(), and normal_.
Referenced by DD::Image::Mesh::draw_primitive_normal().
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Draw primitive's index number.
References average_center(), and DD::Image::gl_text().
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Draw vertex number.
References average_center(), DD::Image::gl_text(), and vertex_.
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Draw vertex normals as short lines coming from vertex's position.
References draw_normal(), DD::Image::AttribContext::group, DD::Image::GeoInfo::N_ref, vertex_, and vertex_offset_.
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Print the vertex UV value at the vertex's position.
References average_center(), DD::Image::gl_text(), DD::Image::GeoInfo::UV_ref, vertex_, and vertex_offset_.
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static |
OpenGL helper function to draw a single normal expressed in geometry local coordinate
References DD::Image::Vector3::array(), DD::Image::Vector3::fast_normalize(), DD::Image::ViewerContext::icon_size(), DD::Image::Matrix4::ntransform(), and DD::Image::Matrix4::transform().
Referenced by draw_primitive_normal(), and draw_vertex_normals().
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inlinevirtual |
Only for internal Nuke use, it will be deprecated
Reimplemented in DD::Image::ParticlesSprite.
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