| Es++ Sample: CubeWithColorEyeLightPositioner |
/******************************************************************************
*
* 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.
*
* 2. The name of the author may not be used to endorse or promote products
* 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.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* CubeWithColorEyeLightPositioner.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/OpenGLGeometry.h>
#include <es++/opengl/OpenGLSphere.h>
#include <es++/opengl/FaceIndices.h>
#include <es++/Vertex.h>
#include <es++/opengl/OpenGLClientState.h>
#include <es++/opengl/OpenGLQuadSurfaces.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<OpenGLQuadSurfaces> surfaces;
Normal3* normals;
size_t numNormals;
Es::ColorEyeLightPositioner* positioner;
public:
SimpleView()
:OpenGLView()
{
}
virtual void display()
{
static Vertex<3> vertices[] = {
{0.0, 0.0, 0.0},
{1.0, 0.0, 0.0},
{1.0, 1.0, 0.0},
{0.0, 1.0, 0.0},
{0.0, 0.0,-1.0},
{1.0, 0.0,-1.0},
{1.0, 1.0,-1.0},
{0.0, 1.0,-1.0},
};
static FaceIndices<4> indices[] = {
{0, 1, 2, 3},
{1, 5, 6, 2},
{5, 4, 7, 6},
{4, 0, 3, 7},
{4, 5, 1, 0},
{3, 2, 6, 7}
};
if (surfaces == NULL) {
surfaces = new OpenGLQuadSurfaces(vertices, SizeOf(vertices), indices, SizeOf(indices));
normals = surfaces->calculateSurfaceNormals(numNormals);
//surfaces->displayNormals();
}
if (surfaces && 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(-0.5f, -0.5f, 0.0f);
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);
glEnable(GL_NORMALIZE);
for (int i = 0; i< SizeOf(indices); i++) {
gc.begin(GL_QUADS);
FaceIndices<4> quad = indices[i];
gc.draw( normals[i],
vertices[ quad.index[0] ],
vertices[ quad.index[1] ],
vertices[ quad.index[2] ],
vertices[ quad.index[3] ]
);
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);
surfaces = NULL;
}
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, 400);
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;
}