gradientfilter.hpp

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#ifndef __GRADIENT__
#define __GRADIENT__

#include <tucano/tucano.hpp>

namespace Tucano
{
namespace Effects
{


class GradientFilter : public Tucano::Effect
{

private:

  Tucano::Shader shader;

  Tucano::Mesh quad;

  bool horizontal = true;

  bool vertical = true;

public:

  GradientFilter (void) {}

  virtual void initialize()
  {
      loadShader(shader, "gradientfilter");
      quad.createQuad();
  }

  void renderTexture(Tucano::Texture& tex, Eigen::Vector2i viewport)
  {
      glViewport(0, 0, viewport[0], viewport[1]);

      shader.bind();
      shader.setUniform("imageTexture", tex.bind());
      shader.setUniform("hdir", horizontal);
      shader.setUniform("vdir", vertical);
      quad.render();

      shader.unbind();
      tex.unbind();
  }

  void setDirections (bool hgrad, bool vgrad)
  {
      horizontal = hgrad;
      vertical = vgrad;
  }

};
}

}
#endif