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; }