ok,i think use jbrush is bad idea,i abandon  it.
i use jpct creat a new scene_editor,everything is ok.

jbrush just translate,and it dont display the object's world coordinate.
just translate coordinate not world  coordinate.

can any one know how,i just want know the world  coordinate.

any helps will be appreciated.

thanks to ego and thomas,the problem solved here is the code.
cam1.cam01=world.getcamera;//
           //first rendering
           world.setCameraTo(cam2.cam01);   
       cam2.move(world, missile01,2);
       fb.setRenderTarget(mtexture);
       fb.clear(back);
       world.renderScene(fb);
       world.draw(fb);
       fb.display();
       fb.removeRenderTarget();
   
       //second rendering
       world.setCameraTo(cam1.cam01);   //without this,two views would be share the same camera.
       cam1.move(world,tes1,1);
       fb.clear(back); 
       world.renderScene(fb);
       world.draw(fb);
      
   fb.blit(mtexture, 0, 0,device_width*5/6, 8,256,   -256,device_width/6,device_height/5,100,false);//-256 must negative,otherwise the second camera would be reverse   
      
       fb.display();
      
       }

i think problem is how to switch camera?

I still failed,i have search all of this forum and google,all of them are not anything about how to set two camera in jpct.
Anyone helps one,thx.

i had made a mistake,they just the same camera....

Quote from: gamenewer on October 22, 2014, 03:29:02 AM
How about the framerate in this case ?

maybe you came from china,we can talk in qq
(my qq:409544041)

a little drop,but not much.

it's Wrong,they just the same camera....


//on start_time
           public Texture mtexture=new Texture(256,256);
           public framebuffer fb=framebuffer(w,h);
           public World world=new World();

//on frame_time
           

           //first rendering
            cam.auto(world, cam, Objec3D1);
       fb.setRenderTarget(mtexture);
       fb.clear();
       world.renderScene(fb);
       world.draw(fb);
       fb.display();
       fb.removeRenderTarget();
      
       //second rendering
       cam.auto(world, cam, Object3D2);
       fb.clear(back);
       world.renderScene(fb);
       world.draw(fb);      
       fb.blit(mtexture, 0, 0, 700, 8,256, -256,device_width/2,device_height/4,100,false);
//-256 must be negative,otherwise the second camera would be revise    
       fb.display();   

i really got it(maybe...)

0.texture is no need for some jpg,just" Texture mtexture=new Texture(256,256);"could usefull too.
1.framebuffer contains camera .
2,framebuffer's default render target is all of the scene(ie world)
3.uses setrendertarget could translate framebuffer into texture.
4 blit this texture in the screen.(the texture means second camera)
5,remove target(so the framebuffer back to first camera)

first render:(second camera)
world=>camera2=>framebuffer1=>texture=>framebuffer1.blit(texture)=>framebuffer.display

second render:(first camera)
world=>camera1=>framebuffer1=>framebuffer.display



Question still, why second camera reverse....

got it,but.........



the second camera is reverse....
how to fix it?

Thx,if there are some examples,that would be much helpful.

And more,i can't understande which fb.render target(texture tex) used for?
it's just like blit()?
or other use?

in my thought:
1 set camera1 in the world1,and set world1 in the framebuffer1
2 set camera2 in the world2 ,and set world2 in the framebuffer2
3,set framebuffer1 area as  Full-screen(ie 1920*1080);
4 set framebuffer2 area as part_screen(ie 256*256);
5,render framebuffer1 and framebuffer2


Is that any wrong with my thought?

I create new world world2,and new Frambuffer fb2.

cam2(world2);
world2.renderScene(fb2);
world2.draw(fb2);


in the second framebuffer,the second camera  is ok,but the second framebuffer is location in the(0,0);

how to set the framebuffer's location?
jpct just have framebuffer(width,heght),where is framebuffer_set(x,y)?

thx,a little complicated,but i will tried it,any progresses will reported soon.