| OZ++ Sample: LightedTriangleRotationByKeyInput |
/****************************************************************************** * * Copyright (c) 2016 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. * * * LightedTriangleRotationByKeyInput.cpp * *****************************************************************************/ #include <oz++/opengl/OpenGLMainView.h> #include <oz++/opengl/OpenGLView.h> #include <oz++/opengl/OpenGLGC.h> #include <oz++/opengl/OpenGLLight.h> #include <oz++/opengl/OpenGLMaterial.h> #include <oz++/opengl/Vertex3.h> #include <oz++/opengl/Color4.h> #include <oz++/opengl/FaceIndices.h> #include <oz++/opengl/OpenGLClientState.h> #include <oz++/opengl/OpenGLTriangleSurfaces.h> namespace OZ { class MainView :public OpenGLMainView { private: //Inner class starts. class SimpleView: public OpenGLView { private: OpenGLGC gc; float angle; SmartPtr<OpenGLTriangleSurfaces> surfaces; Normal3* normals; size_t numNormals; virtual void display() { static Vertex<3> vertices[] = { //Face 1: {-1.0,-1.0, 1.0 }, //0 { 1.0,-1.0, 1.0 }, //1 { 0.0, 1.0, 1.0 }, //2 }; static Color4 colors[] = { {1.0f, 0.4f, 0.2f, 1.0f}, }; static FaceIndices<3> indices[] = { {0, 1, 2} //Triangle }; if (surfaces == NULL) { surfaces = new OpenGLTriangleSurfaces(vertices, SizeOf(vertices), indices, SizeOf(indices)); normals = surfaces->calculateSurfaceNormals(numNormals); } if (normals) { 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); gc.lookAt(2.0, 4.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); gc.rotate(angle, 0.0, 1.0, 0.0); try { gc.enable(GL_LIGHTING); OpenGLLight light(GL_LIGHT0); light.position(0, 0.0, 1.0, 0.0); GLfloat white[] = {1.0f, 1.0f, 1.0f, 1.0f}; GLfloat blue[] = {0.0f, 0.0f, 1.0f, 1.0f}; GLfloat shininess[] = {40.0}; OpenGLMaterial material(GL_FRONT); material.diffuse(blue); material.specular(white); material.shininess(shininess); gc.frontFace(GL_CCW); gc.enable(GL_CULL_FACE); //Draw the front. gc.cullFace(GL_BACK); for (int i = 0; i< SizeOf(indices); i++) { gc.begin(GL_TRIANGLES); FaceIndices<3> tri = indices[i]; gc.draw(colors[i], normals[i], vertices[ tri.index[0] ], vertices[ tri.index[1] ], vertices[ tri.index[2] ]); gc.end(); } //Draw the back. gc.cullFace(GL_FRONT); for (int i = 0; i< SizeOf(indices); i++) { gc.begin(GL_TRIANGLES); FaceIndices<3> tri = indices[i]; gc.draw(colors[i], normals[i], vertices[ tri.index[0] ], vertices[ tri.index[1] ], vertices[ tri.index[2] ]); 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 ); } virtual void keyPress(Event& event) { KeySym k = event.getKeySym(); if (k == XK_Left) { angle -= 1.0f; sendExposeEvent(); } if (k == XK_Right) { angle += 1.0f; sendExposeEvent(); } } virtual void keyRelease(Event& event) { //Do nothing here } public: SimpleView(OpenGLMainView* parent, const char* name, Args& args) :OpenGLView(parent, name, args), angle(0.0f) { } ~SimpleView() { } }; //Inner class ends. private: SmartPtr<SimpleView> view; public: MainView(OpenGLApplication& applet, const char* name, Args& args) :OpenGLMainView(applet, name, args) { Args ar; ar.set(XmNopenGLBufferType, (XtArgVal)getBufferType()); view = new SimpleView(this, "", ar); } ~MainView() { } }; } // int main(int argc, char** argv) { try { const char* name = argv[0]; OpenGLApplication 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); } return 0; }