static void renderSphere (GLfloat x, GLfloat y, GLfloat z)
{
glPushMatrix();
glTranslatef (x, y, z);
ugSolidSpheref(0.4, 32, 32);
glPopMatrix();
}
void display(UGWindow uwin)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ugSolidSpheref(1.0, 20, 16);
glFlush ();
ugSwapBuffers(uwin);
}
void display(UGWindow uwin)
{
GLfloat no_mat[] = { 0.0, 0.0, 0.0, 1.0 };
GLfloat mat_ambient[] = { 0.7, 0.7, 0.7, 1.0 };
GLfloat mat_ambient_color[] = { 0.8, 0.8, 0.2, 1.0 };
GLfloat mat_diffuse[] = { 0.1, 0.5, 0.8, 1.0 };
GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat no_shininess[] = { 0.0 };
GLfloat low_shininess[] = { 5.0 };
GLfloat high_shininess[] = { 100.0 };
GLfloat mat_emission[] = {0.3, 0.2, 0.2, 0.0};
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* draw sphere in first row, first column
* diffuse reflection only; no ambient or specular
*/
glPushMatrix();
glTranslatef (-3.75, 3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in first row, second column
* diffuse and specular reflection; low shininess; no ambient
*/
glPushMatrix();
glTranslatef (-1.25, 3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, low_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in first row, third column
* diffuse and specular reflection; high shininess; no ambient
*/
glPushMatrix();
glTranslatef (1.25, 3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, high_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in first row, fourth column
* diffuse reflection; emission; no ambient or specular reflection
*/
glPushMatrix();
glTranslatef (3.75, 3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, mat_emission);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in second row, first column
* ambient and diffuse reflection; no specular
*/
glPushMatrix();
glTranslatef (-3.75, 0.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in second row, second column
* ambient, diffuse and specular reflection; low shininess
*/
glPushMatrix();
glTranslatef (-1.25, 0.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, low_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in second row, third column
* ambient, diffuse and specular reflection; high shininess
*/
glPushMatrix();
glTranslatef (1.25, 0.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, high_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in second row, fourth column
* ambient and diffuse reflection; emission; no specular
*/
glPushMatrix();
glTranslatef (3.75, 0.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, mat_emission);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in third row, first column
* colored ambient and diffuse reflection; no specular
*/
glPushMatrix();
glTranslatef (-3.75, -3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient_color);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in third row, second column
* colored ambient, diffuse and specular reflection; low shininess
*/
glPushMatrix();
glTranslatef (-1.25, -3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient_color);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, low_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in third row, third column
* colored ambient, diffuse and specular reflection; high shininess
*/
glPushMatrix();
glTranslatef (1.25, -3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient_color);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, high_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_mat);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
/* draw sphere in third row, fourth column
* colored ambient and diffuse reflection; emission; no specular
*/
glPushMatrix();
glTranslatef (3.75, -3.0, 0.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient_color);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_mat);
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, mat_emission);
ugSolidSpheref(1.0, 16, 16);
glPopMatrix();
glFlush();
ugSwapBuffers(uwin);
}