X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=scene.c;h=021962126e093ba94391bbfa15640caf70da6f2e;hb=41e8eb95882abe806e22b182768d2dd9361953d2;hp=457e23d679e43e1a049f7a3c98bec65098555248;hpb=7e5c9a1278e56a10870f26ca4f31359b4697e9a3;p=atyndall%2Fcits2231.git diff --git a/scene.c b/scene.c index 457e23d..0219621 100644 --- a/scene.c +++ b/scene.c @@ -464,24 +464,21 @@ void makeMenu() { * @param h New height */ void windowReshape(int w, int h) { - glViewport(0, 0, w, h); // Reset The Current Viewport - glMatrixMode(GL_PROJECTION); // Select The Projection Matrix - glLoadIdentity(); // Reset The Projection Matrix - - // Calculate The Aspect Ratio Of The Window - gluPerspective(45.0f,(GLfloat)w/(GLfloat)h,0.1f,100.0f); - - glMatrixMode(GL_MODELVIEW); // Select The Modelview Matrix - glLoadIdentity(); // Reset The Modelview Matrix - - /*glViewport(0, 0, w, h); - glMatrixMode(GL_PROJECTION); /* switch matrix mode - glLoadIdentity(); - if (w <= h) - gluOrtho2D(-2.0, 2.0, -2.0 * (GLfloat) h / (GLfloat) w, 2.0 * (GLfloat) h / (GLfloat) w); - else - gluOrtho2D(-2.0 * (GLfloat) w / (GLfloat) h, 2.0 * (GLfloat) w / (GLfloat) h, -2.0, 2.0); - glMatrixMode(GL_MODELVIEW); /* return to modelview mode */ + GLdouble aspect = (GLfloat) h / (GLfloat) w; + GLdouble n = 10.0; + + glViewport(0, 0, w, h); + + glMatrixMode(GL_PROJECTION); /* switch matrix mode*/ + glLoadIdentity(); + + if (w <= h) { + gluOrtho2D(-n, n, -n * aspect, n * aspect); + } else { + gluOrtho2D(-n * aspect, n * aspect, -n, n); + } + + glMatrixMode(GL_MODELVIEW); /* return to modelview mode */ } /** @@ -502,8 +499,6 @@ void display() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); - glTranslatef(-1.5f, 0.0f, -6.0f); - glBegin(GL_QUADS); glColor3f(1.0f,0.0f,0.0f); // Set The Color To Red glVertex3f(-1.0f, 1.0f, 0.0f); // Top left