SOL9 Sample: Fog

SOL9 2.0 Samples

1 Screenshot


2 Source code

/*
 * Fog.cpp 
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. 
 */


#include <sol/opengl/OpenGLMainView.h>
#include <sol/opengl/OpenGLView.h>
#include <sol/opengl/OpenGLGC.h>
#include <sol/opengl/OpenGLFog.h>
#include <sol/opengl/OpenGLVertex3.h>
#include "Resource.h"

namespace SOL {

class MainView :public OpenGLMainView {

private:
  //Inner class starts
  class SimpleView: public OpenGLView {
  private:
    SmartPtr<OpenGLGC> gc;
 
public:
  virtual void display()
  {
    if (gc) {
      gc -> clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
      gc -> clearColor(0.0, 0.0, 1.0, 1.0);

      gc -> loadIdentity();

      gc -> matrixMode(GL_PROJECTION);
      gc -> frustum(1 , -1 , -1 , 1 , 1 , 10);
      OpenGLFog fog;
      fog.mode(GL_LINEAR);
      fog.color(0.0, 0.0, 1.0, 0.0);
      fog.start(1.0);
      fog.end(10.0);

      gc -> begin(GL_POLYGON);
      static OpenGLVertex3 vertices[] = {
        { 0.0, -0.9 , -2.0},
        { 3.0, -0.9 , -7.0},
        { 0.0,  0.9 , -2.0},
        { 0.0, -0.9 , -2.0},
        {-3.0, -0.9 , -7.0},
        { 0.0 , 0.9 , -2.0}
      };
      gc -> draw(vertices, CountOf(vertices));
      gc -> end();
    }
  }
 
  virtual void resize(int w, int h)
  {
  }

  virtual void initialize()
  {
    gc = new OpenGLGC();

    gc -> matrixMode(GL_PROJECTION);
    gc -> loadIdentity();

    gc -> enable( GL_DEPTH_TEST );
    gc -> frustum(1 , -1 , -1 , 1 , 1 , 10);
    gc -> clearColor(0.0, 0.0, 1.0, 1.0);
  }

  public:
    SimpleView(View* parent, const char* name, Args& args)
    :OpenGLView(parent, name, args)
    {
    } 

    ~SimpleView()
    {
    }
  };
  //Inner class ends
  
private:
  SmartPtr<SimpleView>  view;

  long size(Event& event)
  {
    int w, h;
    event.getSize(w, h);
    if (view) {
      view -> reshape(10, 10, w-20, h-20);
      view -> postResizeRequest(w-20, h-20);
    }
    return 1L;
  }

public:
  MainView(Application& applet, const char* name, Args& args)
  :OpenGLMainView(applet, name, args) 
  {
    Args ar;
    view = new SimpleView(this, "", ar);
  }

  ~MainView()
  {
  }
};
}

//
void Main(int argc, char** argv) 
{
  try {
    const char*  name = appName(argv[0]);
    Application applet(name, argc, argv);

    Args args;
    args.set(XmNwidth, 400);
    args.set(XmNheight, 300);
    
    MainView view(applet, name, args);
    view.realize();

    applet.run();
    
  } catch (Exception& ex) {
    caught(ex);
  }
}


Last modified: 25 Feb 2017

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