| 1 | #include <stdlib.h> |
|---|
| 2 | #include <stdio.h> |
|---|
| 3 | #include <string.h> |
|---|
| 4 | |
|---|
| 5 | #include <GL/gl.h> |
|---|
| 6 | #include <GL/glut.h> |
|---|
| 7 | |
|---|
| 8 | #include "tb.h" |
|---|
| 9 | |
|---|
| 10 | int w_win = 640; |
|---|
| 11 | int h_win = 480; |
|---|
| 12 | |
|---|
| 13 | static void setcamera(void) |
|---|
| 14 | { |
|---|
| 15 | glMatrixMode (GL_PROJECTION); |
|---|
| 16 | glLoadIdentity (); |
|---|
| 17 | gluPerspective(40, (float)w_win / (float)h_win, 1, 1000); |
|---|
| 18 | glMatrixMode(GL_MODELVIEW); |
|---|
| 19 | glLoadIdentity(); |
|---|
| 20 | gluLookAt(0.0, 0.0, (float)h_win / 200.0f, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); |
|---|
| 21 | } |
|---|
| 22 | |
|---|
| 23 | static void myinit(void) |
|---|
| 24 | { |
|---|
| 25 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
|---|
| 26 | glClearColor(0.5, 0.5, 0.7, 0.0); |
|---|
| 27 | glColor3f(1.0, 1.0, 1.0); |
|---|
| 28 | |
|---|
| 29 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
|---|
| 30 | glEnable(GL_DEPTH_TEST); |
|---|
| 31 | glShadeModel(GL_SMOOTH); |
|---|
| 32 | |
|---|
| 33 | setcamera(); |
|---|
| 34 | |
|---|
| 35 | tbInit(GLUT_LEFT_BUTTON); |
|---|
| 36 | tbAnimate(GL_FALSE); |
|---|
| 37 | } |
|---|
| 38 | |
|---|
| 39 | static void parsekey(unsigned char key, int x, int y) |
|---|
| 40 | { |
|---|
| 41 | switch (key) |
|---|
| 42 | { |
|---|
| 43 | case 27: |
|---|
| 44 | exit(0); |
|---|
| 45 | break; |
|---|
| 46 | } |
|---|
| 47 | } |
|---|
| 48 | |
|---|
| 49 | static void motion(int x, int y) |
|---|
| 50 | { |
|---|
| 51 | tbMotion(x, y); |
|---|
| 52 | } |
|---|
| 53 | |
|---|
| 54 | static void mouse(int button, int state, int x, int y) |
|---|
| 55 | { |
|---|
| 56 | tbMouse(button, state, x, y); |
|---|
| 57 | } |
|---|
| 58 | |
|---|
| 59 | static void reshape(int w, int h) |
|---|
| 60 | { |
|---|
| 61 | glMatrixMode (GL_MODELVIEW); |
|---|
| 62 | glViewport (0, 0, w, h); |
|---|
| 63 | glLoadIdentity(); |
|---|
| 64 | |
|---|
| 65 | w_win = w; |
|---|
| 66 | h_win = h; |
|---|
| 67 | setcamera(); |
|---|
| 68 | |
|---|
| 69 | tbReshape(w_win, h_win); |
|---|
| 70 | } |
|---|
| 71 | |
|---|
| 72 | #define F(x) ((x)*1.01 - 0.005) |
|---|
| 73 | #define CP glColor4f(x0,y0,z0,0.5); glVertex3f(x0,y0,z0) |
|---|
| 74 | #define BP glColor3f(0.0,0.0,0.0); glVertex3f(F(x0),F(y0),F(z0)) |
|---|
| 75 | #define BLACK x0 = y0 = z0 = 0.0 |
|---|
| 76 | #define RED x0 = 1.0; y0 = z0 = 0.0 |
|---|
| 77 | //#define XRED x0 = 0.8; y0 = z0 = 0.0 |
|---|
| 78 | #define XRED RED |
|---|
| 79 | #define GREEN y0 = 1.0; x0 = z0 = 0.0 |
|---|
| 80 | //#define XGREEN y0 = 0.7; x0 = z0 = 0.0 |
|---|
| 81 | #define XGREEN GREEN |
|---|
| 82 | #define BLUE z0 = 1.0; x0 = y0 = 0.0 |
|---|
| 83 | //#define XBLUE x0 = 0.0; y0 = 0.0; z0 = 0.5 |
|---|
| 84 | #define XBLUE BLUE |
|---|
| 85 | #define YELLOW x0 = y0 = 1.0; z0 = 0.0 |
|---|
| 86 | #define CYAN y0 = z0 = 1.0; x0 = 0.0 |
|---|
| 87 | #define MAGENTA x0 = z0 = 1.0; y0 = 0.0 |
|---|
| 88 | #define WHITE x0 = y0 = z0 = 1.0 |
|---|
| 89 | |
|---|
| 90 | static void display(void) |
|---|
| 91 | { |
|---|
| 92 | float x0,y0,z0; |
|---|
| 93 | |
|---|
| 94 | glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
|---|
| 95 | |
|---|
| 96 | setcamera(); |
|---|
| 97 | |
|---|
| 98 | tbMatrix(); |
|---|
| 99 | |
|---|
| 100 | glPushMatrix(); |
|---|
| 101 | glTranslatef(-.5, -.5, -.5); |
|---|
| 102 | // Bounding box |
|---|
| 103 | glBegin(GL_LINE_LOOP); |
|---|
| 104 | BLACK; CP; RED; CP; MAGENTA; CP; BLUE; CP; |
|---|
| 105 | CYAN; CP; WHITE; CP; YELLOW; CP; GREEN; CP; |
|---|
| 106 | glEnd(); |
|---|
| 107 | glBegin(GL_LINES); |
|---|
| 108 | BLACK; CP; BLUE; CP; |
|---|
| 109 | GREEN; CP; CYAN; CP; |
|---|
| 110 | RED; CP; YELLOW; CP; |
|---|
| 111 | MAGENTA; CP; WHITE; CP; |
|---|
| 112 | glEnd(); |
|---|
| 113 | // Our colour space |
|---|
| 114 | glBegin(GL_TRIANGLES); XRED; CP; XGREEN; CP; XBLUE; CP; glEnd(); |
|---|
| 115 | glBegin(GL_TRIANGLES); XRED; CP; XGREEN; CP; YELLOW; CP; glEnd(); |
|---|
| 116 | glBegin(GL_TRIANGLES); XRED; CP; XBLUE; CP; WHITE; CP; glEnd(); |
|---|
| 117 | glBegin(GL_TRIANGLES); XRED; CP; YELLOW; CP; WHITE; CP; glEnd(); |
|---|
| 118 | glBegin(GL_TRIANGLES); XBLUE; CP; XGREEN; CP; WHITE; CP; glEnd(); |
|---|
| 119 | glBegin(GL_TRIANGLES); YELLOW; CP; XGREEN; CP; WHITE; CP; glEnd(); |
|---|
| 120 | // Better edges |
|---|
| 121 | glBegin(GL_LINES); |
|---|
| 122 | XBLUE; BP; XRED; BP; YELLOW; BP; XRED; BP; |
|---|
| 123 | XBLUE; BP; XGREEN; BP; YELLOW; BP; XGREEN; BP; |
|---|
| 124 | XBLUE; BP; WHITE; BP; YELLOW; BP; WHITE; BP; |
|---|
| 125 | XRED; BP; XGREEN; BP; |
|---|
| 126 | XGREEN; BP; WHITE; BP; |
|---|
| 127 | WHITE; BP; XRED; BP; |
|---|
| 128 | glEnd(); |
|---|
| 129 | glTranslatef(.5, .5, .4); |
|---|
| 130 | glColor4f(.5, .5, .5, .5); |
|---|
| 131 | glBegin(GL_QUADS); |
|---|
| 132 | glVertex3f(0.891063,-0.45388,0); |
|---|
| 133 | glVertex3f(0.0773943,0.151941,-0.985355); |
|---|
| 134 | glVertex3f(-0.891063,0.45388,0); |
|---|
| 135 | glVertex3f(-0.0773943,-0.151941,0.985355); |
|---|
| 136 | glEnd(); |
|---|
| 137 | glPopMatrix(); |
|---|
| 138 | |
|---|
| 139 | glutSwapBuffers(); |
|---|
| 140 | } |
|---|
| 141 | |
|---|
| 142 | int main(int argc, char *argv[]) |
|---|
| 143 | { |
|---|
| 144 | glutInit(&argc, argv); |
|---|
| 145 | glutInitDisplayMode(GLUT_DEPTH | GLUT_RGB | GLUT_DOUBLE | GLUT_MULTISAMPLE); |
|---|
| 146 | glutInitWindowPosition(50, 50); |
|---|
| 147 | glutInitWindowSize(w_win, h_win); |
|---|
| 148 | glutCreateWindow("FTGL TEST"); |
|---|
| 149 | glutDisplayFunc(display); |
|---|
| 150 | glutKeyboardFunc(parsekey); |
|---|
| 151 | glutMouseFunc(mouse); |
|---|
| 152 | glutMotionFunc(motion); |
|---|
| 153 | glutReshapeFunc(reshape); |
|---|
| 154 | glutIdleFunc(display); |
|---|
| 155 | |
|---|
| 156 | myinit(); |
|---|
| 157 | glutMainLoop(); |
|---|
| 158 | |
|---|
| 159 | return 0; |
|---|
| 160 | } |
|---|
| 161 | |
|---|
