FPS camera problem

[ebe]

Hi everyone!


I'm trying attache a node to the camera,

it almost works but only when i move camera,
forward to backward or right to left...

when i rotate cam cube doesn't do anything

is a simply way to make it work with rotation?


my code:

Code: Select all

cam=device->getSceneManager()->
addCameraSceneNodeFPS(0,120,400,-1,keyMap,8,true,10.0f);

scene::IMeshSceneNode *cube= device->getSceneManager()->addCubeSceneNode
(5,device->getSceneManager()->getActiveCamera(),-1,core::vector3df(0,0,100));

[rogerborg]

In Irrlicht, a camera scene node's rotation (setRotation() / getRotation()) is independent of its look-at direction (setTarget()).

This allows for more flexibility, but is (initially) confusing and somewhat non-intuitive.

If you call this every time round your main loop, it will update the FPS camera's scene node rotation to match its look at position.

Code: Select all

cam->setRotation((cam->getTarget() - cam->getAbsolutePosition()).getHorizontalAngle());

[Acki]

In Irrlicht, a camera scene node's rotation (setRotation() / getRotation()) is not the same as its look-at direction (setTarget()).

This allows for more flexibility, but is confusing and non-intuitive.

If you call this every time round your main loop, it will update the FPS camera's scene node rotation to match its look at position.

Code: Select all

cam->setRotation((cam->getTarget() - cam->getAbsolutePosition()).getHorizontalAngle());

but this doesn't matter if the camera is the parent of the node (what it is in this case)...

[rogerborg]

Oh, you're right; the FPS camera does match its rotation to its target, so it shouldn't be necessary to do anything.

ebe, can you explain what you expect to see happening, and what you actually see happening? The code that you've posted looks fine, if you want the cube to stay in front of the camera at all times, and always facing away from the camera.

[ebe]

yes i want to place object in front of camera , but it didn't work with parenting...

when i rotate my camera for example for 180 degree i dont see a cube because it's on opposite site , it'smy problem

but your code solved my problem
thank's rogerborg

[Acki]

yes i want to place object in front of camera , but it didn't work with parenting...

when i rotate my camera for example for 180 degree i dont see a cube because it's on opposite site , it'smy problem

it should work as long as the parent/child relationship is correct...