#include void resizeStage(GLsizei width, GLsizei height) { if (height == 0) height = 1; // Set device viewport dimensions glViewport(0, 0, width, height); // Switch to projection matrix glMatrixMode(GL_PROJECTION); // Reset the projection matrix glLoadIdentity(); GLfloat aspectRatio = (GLfloat) width / (GLfloat) height; glOrtho(-8.0, 24.0, -16.0/aspectRatio, 16.0/aspectRatio, -128.0, 128.0); glRotatef(45.0f, 1.0f, 0.0f, 0.0f); glRotatef(45.0f, 0.0f, 1.0f, 0.0f); glMatrixMode(GL_MODELVIEW); }