| Es++ Sample: PyramidWithColorEyeLightPositioner |
/******************************************************************************
*
* Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
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* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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*
* PyramidWithColorEyeLightPositioner.cpp
*
*****************************************************************************/
//
#include <es++/opengl/OpenGLApplication.h>
#include <es++/opengl/OpenGLMainView.h>
#include <es++/opengl/OpenGLView.h>
#include <es++/opengl/OpenGLGC.h>
#include <es++/opengl/OpenGLLight.h>
#include <es++/opengl/OpenGLMaterial.h>
#include <es++/opengl/OpenGLSphere.h>
#include <es++/opengl/Normal3.h>
#include <es++/opengl/FaceIndices.h>
#include <es++/opengl/OpenGLClientState.h>
#include <es++/opengl/OpenGLTriangleSurfaces.h>
#include <es++/gtkmm-3.0/ColorEyeLightPositioner.h>
using namespace Gtk;
namespace Es {
class MainView :public Es::OpenGLMainView {
private:
///////////////////////////////////////////////////////
//Inner classes start.
class SimpleView :public Es::OpenGLView {
private:
OpenGLGC gc;
SmartPtr<OpenGLTriangleSurfaces> surfaces;
Normal3* normals; //Shallow copy
size_t numNormals;
Es::ColorEyeLightPositioner* positioner;
public:
SimpleView()
:OpenGLView()
{
}
virtual void display()
{
static Vertex<3> vertices[] = {
{ -1.0, -1.0, 1.0},
{ 1.0, -1.0, 1.0},
{ 1.0, -1.0, -1.0},
{ -1.0, -1.0, -1.0},
{ 0.0, 1.0, 0.0},
};
static FaceIndices<3> indices[] = {
{0, 1, 4}, //Triangle: face1
{1, 2, 4}, //Triangle: face2
{2, 3, 4}, //Triangle: face3
{3, 0, 4}, //Triangle] face4
};
if (surfaces == NULL) {
surfaces = new OpenGLTriangleSurfaces(vertices, SizeOf(vertices), indices, SizeOf(indices));
normals = surfaces->calculateSurfaceNormals(numNormals);
//surfaces->displayNormals();
}
if (normals && positioner) {
gc.frustum(1 , -1 , -1 , 1 , 1 , 10);
gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gc.loadIdentity();
gc.matrixMode(GL_MODELVIEW);
gc.clearColor(0.0, 1.0, 1.0, 1.0);
gc.translate(0.0f,0.0f,-1.0f);
double eyeX, eyeY, eyeZ;
positioner->get_eye_position(eyeX, eyeY, eyeZ);
gc.lookAt(eyeX, eyeY, eyeZ, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
gc.rotate(0.0, 0.0, 1.0, 0.0);
try {
gc.enable(GL_LIGHTING);
OpenGLLight light(GL_LIGHT0);
double lightX, lightY, lightZ;
positioner->get_light_position(lightX, lightY, lightZ);
light.position(lightX, lightY, lightZ, 0.0);
OpenGLMaterial material(GL_FRONT);
double r, g, b;
positioner->get_color_position(r, g, b);
material.diffuse (r, g, b, 0.0f);
material.specular(1.0f, 1.0f, 1.0f, 0.0f);
material.shininess(100.0f);
gc.frontFace(GL_CCW);
gc.enable(GL_CULL_FACE);
gc.cullFace(GL_BACK);
gc.enable(GL_NORMALIZE);
for (int i = 0; i< SizeOf(indices); i++) {
gc.begin(GL_TRIANGLES);
FaceIndices<3> tri = indices[i];
gc.draw( normals[i],
vertices[ tri.index[0] ],
vertices[ tri.index[1] ],
vertices[ tri.index[2] ]);
gc.flush();
gc.end();
}
} catch (Exception& ex) {
caught(ex);
}
}
}
virtual void resize(int w, int h)
{
if (w == 0 || h == 0) {
return;
}
gc.matrixMode(GL_PROJECTION);
gc.loadIdentity();
gc.perspective(16.0, (double)w / (double)h, 0.5, 40.0);
gc.matrixMode(GL_MODELVIEW);
}
virtual void initialize()
{
gc.enable(GL_DEPTH_TEST);
}
void set_positioner(Es::ColorEyeLightPositioner* apositioner)
{
positioner = apositioner;
}
};
// Inner classes end.
///////////////////////////////////////////////////////
Es::HorizontalLayout horiz_layout;
Es::VerticalLayout control_pane;
SimpleView simple_view;
Es::ColorEyeLightPositioner positioner;
public:
//////////////////////////////////////////////
//Constructor
//
MainView(Es::OpenGLApplication& applet, std::string& name, Es::Args& args)
:OpenGLMainView(applet, name, args)
{
int w = (int)args.get(XmNwidth);
int h = (int)args.get(XmNheight);
Es::MainLayout& main_layout = get_main_layout();
main_layout.pack_start(horiz_layout);
int pwidth = positioner.get_preferred_width();
horiz_layout.pack_start(simple_view);
horiz_layout.pack_start(positioner, Gtk::PACK_SHRINK);
simple_view.set_positioner(&positioner);
simple_view.set_size_request(w - pwidth-4, h);
positioner.set_size_request(pwidth, h);
positioner.set_color_range(0.0, 1.0);
positioner.set_eye_range(-30.0, 30.0);
positioner.set_light_range(-20.0, 20.0);
positioner.set_color_position(180.0, 0.0, 160.0);
positioner.set_eye_position(-20.0, 4.0, 30.0);
positioner.set_light_position(-5.0, 18.0, 12.0);
OpenGLContext* context = applet.getOpenGLContext();
simple_view.set_opengl_context(context);
simple_view.set_size_request(400, 400);
show_all_children();
}
void render()
{
simple_view.render();
}
};
}
int main(int argc, char** argv)
{
Es::Environment env;
try {
std::string name = argv[0];
Es::OpenGLApplication applet(argc, argv);
Es::Args args;
args.set(XmNx, 20);
args.set(XmNy, 40);
args.set(XmNwidth, 600);
args.set(XmNheight, 400);
Es::MainView mainv(applet, name, args);
mainv.show();
applet.run(mainv, 40);
} catch (Es::Exception& ex) {
caught(ex);
} catch (...) {
printf("Get exception \n");
}
return 0;
}