wireframe.hpp

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#ifndef __WIREFRAME__
#define __WIREFRAME__

#include <tucano/effect.hpp>
#include <tucano/camera.hpp>
#include <tucano/mesh.hpp>

namespace Tucano
{
namespace Effects
{

class Wireframe : public Tucano::Effect
{

private:

    Tucano::Shader wireframe_shader;

        Eigen::Vector4f line_color = Eigen::Vector4f (0.0, 0.0, 0.0, 1.0);

    float thickness = 0.05;

    bool draw_faces = true;

public:

    Wireframe (void)
    {}

    virtual void initialize (void)
    {
        // searches in default shader directory (/shaders) for shader files wireframeShader.(vert,frag,geom,comp)
        loadShader(wireframe_shader, "wireframe") ;
    }

        void setLineColor ( const Eigen::Vector4f& color )
        {
                line_color = color;
        }

    void setEdgeThickness (float value)
    {
        thickness = value;
    }


    void render (Tucano::Mesh& mesh, const Tucano::Camera& camera, const Tucano::Camera& lightTrackball)
    {

        Eigen::Vector4f viewport = camera.getViewport();
        glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);

        wireframe_shader.bind();

        // sets all uniform variables for the wireframe shader
        wireframe_shader.setUniform("projectionMatrix", camera.getProjectionMatrix());
        wireframe_shader.setUniform("modelMatrix", mesh.getModelMatrix());
        wireframe_shader.setUniform("viewMatrix", camera.getViewMatrix());
        wireframe_shader.setUniform("lightViewMatrix", lightTrackball.getViewMatrix());
        wireframe_shader.setUniform("has_color", mesh.hasAttribute("in_Color"));
                wireframe_shader.setUniform("default_color", mesh.getColor());
                wireframe_shader.setUniform("line_color", line_color);
        wireframe_shader.setUniform("thickness", thickness);

        Tucano::Misc::errorCheckFunc(__FILE__, __LINE__);
        mesh.setAttributeLocation(wireframe_shader);

        mesh.render();

        wireframe_shader.unbind();
    }


};
}
}


#endif