Leider gehen materials nicht..

assessment.cpp

/* OpenGL module
 * Assessment 4
 *
 * author: Miguel Gonzalez <[email protected]>
 */

#include <GL/glut.h>

GLint CAM_POS[] = { 3.0, 3.0, 3.0 };
GLfloat mat[4];
GLfloat AMBIENT_COLOR[] = {0.6f, 0.0f, 1.2f, 1.0f};
GLfloat LIGHT_POS[] = { 1.0, 0.0, 0.0 };
GLfloat LIGHT_COLOR[] = {0.0f, 0.0f, 0.0f, 0.0f};

int t = 0;

void brassMaterial()
{
  double shine = 0.21794872;
  mat[0] = 0.329412;
  mat[1] = 0.223529;
  mat[2] = 0.027451;
  mat[3] = 1.0;
  glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat);
  mat[0] = 0.780392;
  mat[1] = 0.568627;
  mat[2] = 0.113725;
  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat);
  mat[0] = 0.992157;
  mat[1] = 0.941176;
  mat[2] = 0.807843;
  glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat);
  glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shine * 128.0);
}

void redPlasticMaterial()
{
  double shine = .25;
  mat[0] = 0.0;
  mat[1] = 0.0;
  mat[2] = 0.0;
  mat[3] = 0.5;
  glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat);
  mat[0] = 0.5;
  mat[1] = 0.0;
  mat[2] = 0.0;
  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat);
  mat[0] = 0.7;
  mat[1] = 0.6;
  mat[2] = 0.6;
  glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat);
  glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shine * 128.0);
}

void ambientLight() {
  glLightfv(GL_LIGHT0, GL_AMBIENT, AMBIENT_COLOR);
}

void pointLight() {
  glLightfv(GL_LIGHT0, GL_SPECULAR, LIGHT_COLOR);
  glLightfv(GL_LIGHT0, GL_POSITION, LIGHT_POS);
}

void display()
{
  glClearColor(0.2f, 0.0f, 0.1f, 1.0f);
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  gluLookAt(CAM_POS[0], CAM_POS[1], CAM_POS[2], 0.0, 0.0, 0.0, 0.0, 0.4, 0.0);
  glTranslatef(0.0, 0.0, 0.0);
  glEnable(GL_LIGHT0);
  ambientLight();
  pointLight();
  glPushMatrix();
    glEnable(GL_COLOR_MATERIAL);
    brassMaterial();
    glRotatef(0.8f * t, 1, 1, 1);
    glutSolidCone(1.0f, 2.0f, 256.0f, 256.0f);
    glDisable(GL_COLOR_MATERIAL);
  glPopMatrix();
  glTranslatef(0.0f, 0.0f, -3.0f);
  glPushMatrix();
    glEnable(GL_COLOR_MATERIAL);
    glRotatef(-0.8f * t, 0, 1, 1);
    redPlasticMaterial();
    glutSolidCone(1.0f, 2.0f, 256.0f, 256.0f);
    glDisable(GL_COLOR_MATERIAL);
  glPopMatrix();
  glDisable(GL_LIGHT0);
  glFlush();
  glutSwapBuffers();
  t++;
}

void reshape(GLsizei w, GLsizei h)
{
  glViewport (0, 0, (GLsizei) w, (GLsizei) h);
  glMatrixMode (GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(50.0,(GLfloat)w/(GLfloat)h,1.0,20.0);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
}

void refresh(int te)
{
  glutPostRedisplay();
  glutTimerFunc( 10, refresh, 1);
}

int main(int argc, char** argv) {
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
  glutInitWindowSize(800, 600);
  glutInitWindowPosition(100, 100);
  glutCreateWindow("OpenGL - Assessment 3");

  glEnable(GL_LIGHTING);
  glEnable(GL_DEPTH_TEST);

  glutReshapeFunc(reshape);
  glutDisplayFunc(display);
  glutTimerFunc( 10, refresh, 1);

  glutMainLoop();
  return 0;
}