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| author | Brian <brian.paul@tungstengraphics.com> | 2008-01-28 12:35:20 -0700 |
|---|---|---|
| committer | Brian <brian.paul@tungstengraphics.com> | 2008-01-28 12:37:35 -0700 |
| commit | ba083bae69dcf41e764acd85ad84594d00c8b670 (patch) | |
| tree | 82170da736ce8494f497d260b325ee259312ba88 /progs | |
| parent | 3d1b0f4c57edaf5707e4952617dcd6c57dfbdc65 (diff) | |
| download | external_mesa3d-ba083bae69dcf41e764acd85ad84594d00c8b670.zip external_mesa3d-ba083bae69dcf41e764acd85ad84594d00c8b670.tar.gz external_mesa3d-ba083bae69dcf41e764acd85ad84594d00c8b670.tar.bz2 | |
Added d/D keys to change viewing distance, 'a' to toggle animation
Diffstat (limited to 'progs')
| -rw-r--r-- | progs/demos/gears.c | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/progs/demos/gears.c b/progs/demos/gears.c index ab9bc00..7abbd36 100644 --- a/progs/demos/gears.c +++ b/progs/demos/gears.c @@ -27,6 +27,9 @@ static GLint T0 = 0; static GLint Frames = 0; static GLint autoexit = 0; static GLint win = 0; +static GLboolean Visible = GL_TRUE; +static GLboolean Animate = GL_TRUE; +static GLfloat viewDist = 40.0; /** @@ -179,6 +182,9 @@ draw(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); + + glTranslatef(0.0, 0.0, -viewDist); + glRotatef(view_rotx, 1.0, 0.0, 0.0); glRotatef(view_roty, 0.0, 1.0, 0.0); glRotatef(view_rotz, 0.0, 0.0, 1.0); @@ -240,6 +246,15 @@ idle(void) glutPostRedisplay(); } +static void +update_idle_func(void) +{ + if (Visible && Animate) + glutIdleFunc(idle); + else + glutIdleFunc(NULL); +} + /* change view angle, exit upon ESC */ /* ARGSUSED1 */ static void @@ -252,6 +267,16 @@ key(unsigned char k, int x, int y) case 'Z': view_rotz -= 5.0; break; + case 'd': + viewDist += 1.0; + break; + case 'D': + viewDist -= 1.0; + break; + case 'a': + Animate = !Animate; + update_idle_func(); + break; case 27: /* Escape */ cleanup(); exit(0); @@ -297,8 +322,6 @@ reshape(int width, int height) glLoadIdentity(); glFrustum(-1.0, 1.0, -h, h, 5.0, 60.0); glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - glTranslatef(0.0, 0.0, -40.0); } static void @@ -351,13 +374,12 @@ init(int argc, char *argv[]) } } + static void visible(int vis) { - if (vis == GLUT_VISIBLE) - glutIdleFunc(idle); - else - glutIdleFunc(NULL); + Visible = vis; + update_idle_func(); } int main(int argc, char *argv[]) @@ -375,6 +397,7 @@ int main(int argc, char *argv[]) glutKeyboardFunc(key); glutSpecialFunc(special); glutVisibilityFunc(visible); + update_idle_func(); glutMainLoop(); return 0; /* ANSI C requires main to return int. */ |