Can not draw a 3d line

[sunzhuo]

I am using 1.5. This issue made me crazy. I tested it in the helloword example. It doesn't work. see below:

Code: Select all

	smgr->addCameraSceneNode(0, vector3df(0,30,-40), vector3df(0,5,0));

    SMaterial m;
    m.Lighting = false;
    driver->setMaterial(m);
    driver->setTransform(video::ETS_WORLD, core::matrix4()); 
	driver->draw3DLine(vector3df(-100,5,0),vector3df(100,5,0),video::SColor(255,255,255,255));

[Sylence]

Doesn't work means what ?
Is the line drawn wrong, or is it not drawn?

[sunzhuo]

Doesn't work means what ?
Is the line drawn wrong, or is it not drawn?

means not drawn, can not be seen, invisible

[Acki]

how/when do you call it ???
it works for me this way:

Code: Select all

SMaterial m;
m.Lighting = false;
while(device->run()){
  driver->beginScene(true, true, video::SColor(0,0,0,0));
  smgr->drawAll();
  guienv->drawAll();

  driver->setMaterial(m);
  driver->setTransform(video::ETS_WORLD, core::matrix4());
  driver->draw3DLine(vector3df(-100,5,10),vector3df(100,5,10));

  driver->endScene();
}

[sunzhuo]

how/when do you call it ???
it works for me this way:

Code: Select all

SMaterial m;
m.Lighting = false;
while(device->run()){
  driver->beginScene(true, true, video::SColor(0,0,0,0));
  smgr->drawAll();
  guienv->drawAll();

  driver->setMaterial(m);
  driver->setTransform(video::ETS_WORLD, core::matrix4());
  driver->draw3DLine(vector3df(-100,5,10),vector3df(100,5,10));

  driver->endScene();
}

I call it before the loop.

[randomMesh]

I call it before the loop.

That's wrong. You need to call it between

Code: Select all

driver->beginScene()

and

Code: Select all

driver->endScene()

[sunzhuo]

I call it before the loop.

That's wrong. You need to call it between

Code: Select all

driver->beginScene()

and

Code: Select all

driver->endScene()

I got it, thanks.