/* Initialises texturing, lighting, display lists, and everything else
associated with the model. */
void
myinit(void)
{
GLfloat mat_specular[] = {1.0, 1.0, 1.0, 1.0};
GLfloat mat_shininess[] = {50.0};
GLfloat light_position1[] = {1.0, 1.0, 1.0, 0.0};
GLfloat light_position2[] = {-1.0, 1.0, 1.0, 0.0};
glClearColor(0.0, 0.0, 0.0, 0.0);
obj = gluNewQuadric();
make_table();
make_image();
/* Set up Texturing */
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, 3, IMAGE_WIDTH,
IMAGE_HEIGHT, 0, GL_RGB, GL_UNSIGNED_BYTE,
image);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
/* Set up Lighting */
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
glLightfv(GL_LIGHT0, GL_POSITION, light_position1);
glLightfv(GL_LIGHT1, GL_POSITION, light_position2);
/* Initial render mode is with full shading and LIGHT 0
enabled. */
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
glDisable(GL_ALPHA_TEST);
glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
glEnable(GL_COLOR_MATERIAL);
glShadeModel(GL_SMOOTH);
/* Initialise display lists */
glNewList(list_piston_shaded, GL_COMPILE);
draw_piston();
glEndList();
glNewList(list_flywheel_shaded, GL_COMPILE);
draw_flywheel();
glEndList();
gluQuadricTexture(obj, GL_TRUE);
glNewList(list_piston_texture, GL_COMPILE);
draw_piston();
glEndList();
glNewList(list_flywheel_texture, GL_COMPILE);
draw_flywheel();
glEndList();
gluQuadricTexture(obj, GL_FALSE);
}
/* Draws the complete crank. Piston also gets drawn through the crank bell
function. */
void
draw_crank(void)
{
glPushMatrix();
glRotatef(crank_angle, 1.0, 0.0, 0.0);
glPushMatrix();
glRotatef(90, 0.0, 1.0, 0.0);
glTranslatef(0.0, 0.0, -1.0);
myCylinder(obj, 0.08, 0.0, 1.4);
glPopMatrix();
glPushMatrix();
glTranslatef(0.28, 0.0, 0.0);
draw_crankbell();
glPopMatrix();
glPushMatrix();
glTranslatef(-0.77, 0.0, 0.0);
if (shaded) {
if (texture)
glCallList(list_flywheel_texture);
else
glCallList(list_flywheel_shaded);
} else
draw_flywheel();
glPopMatrix();
glPopMatrix();
}
