faces[i].fbo.set_format((COLOR_ATTACHMENT,f, DEPTH_ATTACHMENT,DEPTH_COMPONENT32F));
faces[i].fbo.attach(COLOR_ATTACHMENT, env_tex, face, 0);
faces[i].fbo.attach(DEPTH_ATTACHMENT, depth_buf);
faces[i].fbo.set_format((COLOR_ATTACHMENT,f, DEPTH_ATTACHMENT,DEPTH_COMPONENT32F));
faces[i].fbo.attach(COLOR_ATTACHMENT, env_tex, face, 0);
faces[i].fbo.attach(DEPTH_ATTACHMENT, depth_buf);