void display()
{
glDrawBuffer(GL_FRONT);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
xx-=0.001;
int c,l;
for (c = -1; c < 12;c++)
for (l = -1; l < 12;l++)
display_cube(c,l);
glFlush();
}
/**
* \brief This function displays 3d scene
*/
static void glut_on_display(void)
{
float cube_pos[3] = {1.1, 1.1, 1.1};
/* const float eps = 1.0e-6;*/
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, ctx->display->window.width, ctx->display->window.height);
#if 0
/* Draw background gradient */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0, 1.0, -1.0, 1.0, 1.0, -1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glShadeModel(GL_SMOOTH);
glDepthFunc(GL_ALWAYS);
glBegin(GL_QUADS);
glColor4fv(ctx->display->canvas.bg_col_grad_bottom);
glVertex3f(-1.0f, -1.0f, -1.0f + eps);
glColor4fv(ctx->display->canvas.bg_col_grad_bottom);
glVertex3f( 1.0f, -1.0f, -1.0f + eps);
glColor4fv(ctx->display->canvas.bg_col_grad_top);
glVertex3f( 1.0f, 1.0f, -1.0f + eps);
glColor4fv(ctx->display->canvas.bg_col_grad_top);
glVertex3f(-1.0f, 1.0f, -1.0f + eps);
glEnd();
#endif
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0, ctx->display->window.width, 0, ctx->display->window.height);
glScalef(1, -1, 1);
glTranslatef(0, -ctx->display->window.height, 0);
/* BEGIN: Drawing of 2D stuff */
display_text_info();
/* END: Drawing of 2D stuff */
/* Set projection matrix for 3D stuff here */
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(ctx->display->camera.field_of_view,
(double)ctx->display->window.width/(double)ctx->display->window.height,
ctx->display->camera.near_clipping_plane,
ctx->display->camera.far_clipping_plane);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
gluLookAt(ctx->display->camera.pos[0], ctx->display->camera.pos[1], ctx->display->camera.pos[2],
ctx->display->camera.target[0], ctx->display->camera.target[1], ctx->display->camera.target[2],
ctx->display->camera.up[0], ctx->display->camera.up[1], ctx->display->camera.up[2]);
glPushMatrix();
/* BEGIN: Drawing of 3d staff */
display_string_3d("Cube", cube_pos, white_col);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
display_cube();
glDisable(GL_LIGHT0);
glDisable(GL_LIGHTING);
/* END: Drawing of 3d staff */
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glFlush();
glutSwapBuffers();
}
