void Matrix4x4<T>::orthographic(T inRange, T inRatio)
{
if (inRatio < SCT(1))
{
orthographic(-inRange, inRange, -inRange / inRatio,
inRange / inRatio, -inRange, inRange);
}
else
{
orthographic(-inRange * inRatio, inRange * inRatio, -inRange,
inRange, -inRange, inRange);
}
}
void CameraRenderNode::render() {
int projection = guiCamera ? PROJECTION_ORTHOGRAPHIC : scene->getAttribute(PROJECTION_ID)->getIntValue();
switch(projection) {
case PROJECTION_PERSPECTIVE:
perspective(85, 4.0f,5000.0f);
break;
case PROJECTION_ORTHOGRAPHIC:
orthographic(-1.0f,1.0f);
break;
}
}
void init() {
srand(time(NULL));
glEnable(GL_DEPTH_TEST);
float light[] = {0.1, 0.2, 0.3, 0};
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glLightfv(GL_LIGHT0, GL_POSITION, light);
glEnable(GL_COLOR_MATERIAL); // makes glColor work with GL_LIGHTING enabled
glEnable(GL_BLEND);
orthographic();
staircase();
}
/**
* Function that listens for event input from keyboard.
*/
void Keyboard(unsigned char key, int x, int y) {
switch (key){
/*projection commands*/
case '1':
printf("changing projection to orthographic.\n");
orthographic();
break;
case '2':
printf("changing projection to oblique.\n");
oblique();
break;
case '3':
printf("changing projection to perspective.\n");
perspective();
break;
/*camera movement*/
case 'm':
printf("Camera movement. You can no use w,a,s,d,z,x to move ");
printf("around.\n");
currentMode = 'm';
glutPostRedisplay();
break;
case 'w':
if(useSmooth == true){
useSmooth = false;
bezSpeed += 0.25;
calculateNewBezierCurve(direction,P0,Pref,V0,bezierP,PrefChange,uM,
uMPrim,bezSpeed);
bezierPCounter = 0;
useSmooth = true;
}else{
cameraForward(0);
}
break;
case 'a':
if(useSmooth == true){
direction = 'l';
calculateNewBezierCurve(direction,P0,Pref,V0,bezierP,PrefChange,uM,
uMPrim,bezSpeed);
bezierPCounter = 0;
}else{
cameraLeft();
}
break;
case 's':
if(useSmooth == true){
if(bezSpeed > 0.5){
useSmooth = false;
bezSpeed -= 0.25;
calculateNewBezierCurve(direction,P0,Pref,V0,bezierP,PrefChange,
uM,uMPrim,bezSpeed);
bezierPCounter = 0;
useSmooth = true;
}
}else{
cameraBackward();
}
break;
case 'd':
if(useSmooth == true){
direction = 'r';
calculateNewBezierCurve(direction,P0,Pref,V0,bezierP,PrefChange,uM,
uMPrim,bezSpeed);
bezierPCounter = 0;
}else{
cameraRight();
}
break;
/*object movement*/
case 'q':
printf("Closing program.....\n");
exit(0);
break;
case 'v':
glutFullScreenToggle();
break;
case 'o':
printf("\ncurrent mode: open OFF file.\n");
currentMode = 'o';
glutPostRedisplay();
loadVertices(NULL);
glutPostRedisplay();
break;
case 't':
printf("current mode: translation.\n");
currentMode = 't';
chosenMovement = 'n';
chosenMovement = 'n';
glutPostRedisplay();
printf("In which direction (x,y or z) do you want to move the object?");
printf("\npress x,y or z button to choose.\n");
break;
case 'e':
printf("current mode: Scaling.\n");
currentMode = 's';
glutPostRedisplay();
chosenMovement = 'n';
chosenMovement = 'n';
printf("press + or - button to scale the object.\n");
break;
case 'r':
printf("current mode: Rotating.\n");
currentMode = 'r';
glutPostRedisplay();
chosenMovement = 'n';
chosenMovement = 'n';
printf("Press x,y,or z to choose which axis the object should ");
printf("rotate around.\n");
break;
case 'x':
if(currentMode == 't'){
printf("X direction chosen. press + or - button ");
printf("to move the object.\n");
chosenDirection = 'x';
}else if(currentMode == 'r'){
printf("X direction chosen. press + or - button ");
printf("to rotate the object around the X-axis.\n");
chosenDirection = 'x';
}else{
cameraUp();
}
break;
case 'y':
if(currentMode == 't'){
printf("Y direction chosen. press + or - button ");
printf("to move the object.\n");
chosenDirection = 'y';
}else if(currentMode == 'r'){
printf("Y direction chosen. press + or - button ");
printf("to rotate the object around the Y-axis.\n");
chosenDirection = 'y';
}
break;
case 'z':
if(currentMode == 't'){
printf("Z direction chosen. press + or - button ");
printf("to move the object.\n");
chosenDirection = 'z';
} else if(currentMode == 'r'){
printf("Z direction chosen. press + or - button ");
printf("to rotate the object around the Z-axis.\n");
chosenDirection = 'z';
}else{
cameraDown();
}
break;
case '+':
if(currentMode == 't'){
if(chosenDirection == 'x' || chosenDirection == 'y'
|| chosenDirection == 'z'){
chosenMovement = '+';
translateStage();
}
}else if(currentMode == 's'){
chosenMovement = '+';
scaleStage();
}else if(currentMode == 'r'){
chosenMovement = '+';
rotateStage();
}
break;
case '-':
if(currentMode == 't'){
if(chosenDirection == 'x' || chosenDirection == 'y'
|| chosenDirection == 'z'){
chosenMovement = '-';
translateStage();
}
}else if(currentMode == 's'){
chosenMovement = '-';
scaleStage();
}else if(currentMode == 'r'){
chosenMovement = '-';
rotateStage();
}
break;
case 'f':
/*changes between line mode and filled mode for the object.*/
if(objectFilled == false){
glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
sendTMatrixToGPU();
glutPostRedisplay();
objectFilled = true;
}else if(objectFilled == true){
glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
sendTMatrixToGPU();
glutPostRedisplay();
objectFilled = false;
}
break;
case 'h':
printf("Help:\n----------------------------------------------------\n");
printf("The allowed keyboard commands are: \n");
printf("o: open file, q: quit program, t: transform object\n");
printf("e: scale object, r: rotate object, m: camera movement.\n");
printf("f: object fill: on/off ");
printf("x: choose x-axis. If camera mode: go up.\ny: choose y-axis ");
printf("z: choose z-axis. If camera mode: go down.\n\n");
printf("w: move camera forward. a: move camera left.\n");
printf("s: move camera backwards. d: move camera right.\n");
printf("v: toggle between fullscreenmode..\n");
printf("1: orthographic projection. 2: oblique projection.\n");
printf("3: perspective projection.\n");
printf("You may also use the mouse to move the camera. To enable, ");
printf("press and hold left\nmouse button and move the mouse.\n");
printf("Use the mouseScroll to zoom in or out.\n");
printf("-----------------------------------------------------------\n");
break;
default:
printf("Unknown keyboard command. Press \"h\" for help. \n");
break;
}
}
