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  1. Hi, I started learning OpenGL not too long ago from this website: [url="http://www.swiftless.com/opengltuts.html"]http://www.swiftless...opengltuts.html[/url] I got only to point 5: OpenGL Color. What I want to do is: · Draw a sphere: done · Increase its radius once a second: NOT done I don’t want to use the keyboard to increase the radius. I already know how to do that. Here is what my code looks like: [code]#include "TimeUtils.hpp" //More code int main(int argc, char *argv[]) { //More code /* Increment Sphere radius once a second */ long time01, time02; time01 = time_now();// Returns the time now long timeDifference = 0; long lastDifference = 0; long count = 0; while(1) { time02 = time_now(); // Returns the time now count = (time02-time01)/1000; // Number of seconds since “time01” timeDifference = count; if(timeDifference != lastDifference) { lastDifference = timeDifference; Sphere::itsRadius = Sphere::itsRadius + 0.002; //Does not work: Supposed to increase radius once per second } glutReshapeFunc(resize); glutDisplayFunc(display); glutIdleFunc(idle); //More code glutMainLoop(); if( ((time02-time01)/1000) >= MAX) break;// Stop after MAX seconds }//End while loop return EXIT_SUCCESS; }//End main() //More code static void display(void) { const double t = glutGet(GLUT_ELAPSED_TIME) / 1000.0; const double a = t*90.0; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3d(1,0,0); glPushMatrix(); glTranslated(0,0,-6); glutSolidSphere(Sphere::itsRadius,Sphere::itsSlices,Sphere::itsStacks); glPopMatrix(); glutSwapBuffers(); } //More code [/code] The time trick I used above work on its own but, not when I draw my sphere. Thank you for your help. Regards, Herve
  2. I'm more a business man then a developer.
  3. need help to get started

    Hello, I have never written codes for games. I am a very good (i think) C, C++, MATLAB and python programmer. I want to start writing codes for games. Apparently i have to learn C# and use Visual studio. I don't really like Windows tough (i use Linux: Ubuntu). However, if i have to use Windows to develop game, so be it. My questions are: What language should is use? What compiler should i use? Do i really have to learn a new language? Is there a game that every beginner starts with? (a "Hello World!" type of game) Thank you very much in advance