- draw_tunnel_range((unsigned short*)fb_pixels, xoffs, yoffs, starty, draw_lines, time_msec);
+ int resty = starty + draw_lines;
+ int rest_lines = num_lines - draw_lines;
+ draw_tunnel_range(vmem_back, xoffs, yoffs, starty, draw_lines, time_msec);
+ if(rest_lines) {
+ memset(vmem_back + resty * fb_width, 0, rest_lines * fb_width * 2);
+ }