BasicPipeline Struct Reference

Inheritance diagram for BasicPipeline:

Public Member Functions
	BasicPipeline (const Mesh &_mesh, const Transform &_model, const Transform &_view, const Transform &_projection)
Point	vertex_shader (const int vertex_id) const
Color	fragment_shader (const int primitive_id, const Fragment fragment) const
	BasicPipeline (const Mesh &_mesh, const Transform &_model, const Transform &_view, const Transform &_projection)
Point	vertex_shader (const int vertex_id) const
Color	fragment_shader (const int primitive_id, const Fragment fragment) const

Public Attributes
const Mesh &	mesh
Transform	model
Transform	view
Transform	projection
Transform	mvp
Transform	mv
Transform	mvn

Detailed Description

Definition at line 61 of file pipeline.cpp.

Constructor & Destructor Documentation

BasicPipeline() [1/2]

BasicPipeline::BasicPipeline ( const Mesh & _mesh, const Transform & _model, const Transform & _view, const Transform & _projection )

inline

Definition at line 70 of file pipeline.cpp.

        : Pipeline(), mesh(_mesh), model(_model), view(_view), projection(_projection) 
    {
        mvp= projection * view * model;
        mv= Normal(view * model);
    }

BasicPipeline() [2/2]

BasicPipeline::BasicPipeline ( const Mesh & _mesh, const Transform & _model, const Transform & _view, const Transform & _projection )

inline

Definition at line 76 of file pipeline3d.cpp.

        : Pipeline(), mesh(_mesh), model(_model), view(_view), projection(_projection) 
    {
        mvp= projection * view * model;
        mv= view * model;
        mvn= make_normal_transform(mv);
    }

Member Function Documentation

vertex_shader() [1/2]

Point BasicPipeline::vertex_shader ( const int vertex_id ) const

inlinevirtual

Implements Pipeline.

Definition at line 77 of file pipeline.cpp.

    {
        // recupere la position du sommet
        Point p= Point( mesh.positions().at(vertex_id) );
        // renvoie les coordonnees dans le repere projectif
        return mvp(p);
    }

fragment_shader() [1/2]

Color BasicPipeline::fragment_shader ( const int primitive_id, const Fragment fragment ) const

inlinevirtual

Implements Pipeline.

Definition at line 85 of file pipeline.cpp.

    {
        // recuperer les normales des sommets de la primitive
        Vector a= mv( Vector( mesh.normals().at(primitive_id * 3) ));
        Vector b= mv( Vector( mesh.normals().at(primitive_id * 3 +1) ));
        Vector c= mv( Vector( mesh.normals().at(primitive_id * 3 +2) ));
        
        // interpoler la normale
        Vector n= fragment.u * c + fragment.v * a + fragment.w * b;
        // et la normaliser, l'interpolation ne conserve pas la longueur des vecteurs
        n= normalize(n);
        
        // calcule une couleur qui depend de l'orientation de la primitive par rapport a la camera
        return White() * std::abs(n.z);
        
        // on peut faire autre chose, par exemple, afficher directement la normale...
        // return Color(std::abs(n.x), std::abs(n.y), std::abs(n.z));
    }

vertex_shader() [2/2]

Point BasicPipeline::vertex_shader ( const int vertex_id ) const

inlinevirtual

Implements Pipeline.

Definition at line 84 of file pipeline3d.cpp.

    {
        // recupere la position du sommet
        Point p= make_point( mesh.positions[vertex_id] );
        //~ // renvoie les coordonnees dans le repere projectif
        //~ return transform(mvp, p);
        
        // renvoie les coordonnees dans le repere camera
        return transform(mv, p);
    }

fragment_shader() [2/2]

Color BasicPipeline::fragment_shader ( const int primitive_id, const Fragment fragment ) const

inlinevirtual

Implements Pipeline.

Definition at line 95 of file pipeline3d.cpp.

    {
        // recuperer les normales des sommets de la primitive
        Vector a= transform(mvn, make_vector( mesh.normals[primitive_id * 3] ));
        Vector b= transform(mvn, make_vector( mesh.normals[primitive_id * 3 +1] ));
        Vector c= transform(mvn, make_vector( mesh.normals[primitive_id * 3 +2] ));
        
        // interpoler la normale
        Vector n= fragment.u * c + fragment.v * a + fragment.w * b;
        // et la normaliser, l'interpolation ne conserve pas la longueur des vecteurs
        n= normalize(n);
        
        // calcule une couleur qui depend de l'orientation de la primitive par rapport a la camera
        Color color= make_color(1.0 - (primitive_id % 100) / 99.f, float(primitive_id % 10) / 9.f, float(primitive_id % 1000) / 999.f);
        return color * std::abs(n.z);
        
        // on peut faire autre chose, par exemple, afficher la normale...
        // return make_color(std::abs(n.x), std::abs(n.y), std::abs(n.z));
    }

Member Data Documentation

mesh

const Mesh & BasicPipeline::mesh

Definition at line 63 of file pipeline.cpp.

model

Transform BasicPipeline::model

Definition at line 64 of file pipeline.cpp.

view

Transform BasicPipeline::view

Definition at line 65 of file pipeline.cpp.

projection

Transform BasicPipeline::projection

Definition at line 66 of file pipeline.cpp.

mvp

Transform BasicPipeline::mvp

Definition at line 67 of file pipeline.cpp.

mv

Transform BasicPipeline::mv

Definition at line 68 of file pipeline.cpp.

mvn

Transform BasicPipeline::mvn

Definition at line 74 of file pipeline3d.cpp.

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The documentation for this struct was generated from the following files:

• gkit2_tutos/pipeline.cpp
• gkit2_tutos/pipeline3d.cpp