glRotateDemo.nxc

This is an example of how to use the glInit, glBox, glSetAngleX, glBeginRender, glCallObject, glObjectAction, and glFinishRender functions.

/*------------------------------------------------------------------------------
; File          : glRotateDemo.nbc
; Description   : A program demonstrating two 3D boxes with rotate actions...
; Programmed by : Arno van der Vegt, avandervegt@home.nl
;-----------------------------------------------------------------------------*/

int angleX, angleY;

task main()
{
  // Initialize the 3D engine...
  glInit();
  // Create a box, this is the first object which will be object id 0...
  glBox(GL_POLYGON, 20, 20, 20);
  // Create a box, this is the second object which will be object id 1...
  glBox(GL_POLYGON, 40, 40, 40);
  glSetAngleX(30);
  angleX = 0;
  angleY = 0;
  while (true) {
    // Setup for rendering...
    glBeginRender();
    // Call the object with id 0...
    glCallObject(0);
    glObjectAction(0, GL_ROTATE_X, angleX);
    // Call the object with id 1...
    glCallObject(1);
    glObjectAction(1, GL_ROTATE_Y, angleY);
    // Finish, clear the screen, rotate and render the called objects...
    glFinishRender();
    angleX += 3;
    angleX %= 360;
    angleY += 5;
    angleY %= 360;
  }
}