Hello,
http://i.imgur.com/jOhhs.jpg
So i don’t know when i’ve to move the camera. I try to detect the collision with a ray and the camera Left but i use the distance of the closest collision and if i’m already inside a geometry the results is wrong and the camera turn in the wrong sense. Moreover the camera the camera has to detect collisions and move behind the characters.
If you want more detail please let me know.
atomix
August 2, 2011, 12:27am
2
Yeah , the code is kind of “ugly” … Heh heh, I don’t think he intended to be “copied and pasted” by lazy dude like us… In fact i’m using it too but still get some annoying problems. So, I plan my self improve it to become a “well-coded” one. I will spend sometime to re-write that code in a clearer way with clearer comment and post here…
atomix
August 2, 2011, 12:36am
3
@Bonechilla and @stomrage : I must say bonechilla’s code is a good start for us to write our own “intelligent chase cam”.
atomix
July 27, 2011, 7:46pm
4
Cool Project you got there… !
atomix
July 27, 2011, 9:38pm
6
I doubt that this chase cam in Zelda can “intelligent” know when the character model is hidden by other occluded mesh (by the ray method you mention)…
follow the player as fast as possible but keep the minimum distance (determine by the physic movement vector)
the physic collision shape make the camera avoid the obstacles in a “fake smart way” by slide in the obstacles sufface… So sometime in the game you will see the camera is stuck in a mountain slope, then the ray method is evolved to compute the best “reset” position and direction for cam!
Another approach could be to cast a ray from the play towards the camera, if the ray doesn’t collide with anything or the collision is further away than the cam distance, your in the clear - in theory there will be clear line of sight to the player.
set the camera distance to the collision distance, what this will do is zoom the camera closer the the player and put it infront of whatever was getting in the way … I have used this before but its not what you want.
I guess you could cast another ray but rotated around the y (up) axis by an amount (lets say 5 degrees ? there is no right answer) then do the same procedure, if the ray doesn’t hit anything this time then you can rotate your camera around by the same amount and there shouldn’t be anything in between. If there is something in the way, rotate the ray by an additional 5 degrees until eventually you have a clear line of sight to the player.
atomix
July 28, 2011, 8:01am
8
@ guy :http://hub.jmonkeyengine.org/groups/user-code-projects/forum/topic/autorotatecamera/
Thanks a lot !http://hub.jmonkeyengine.org/members/atomix/ http://hub.jmonkeyengine.org/members/thetoucher/
Kyaaa thetoucher your solution destroyed my framerates huhu.
My aplogies. In zelda wind waker they use ray to detect collision and rotate the camera. See yourself:http://www.youtube.com/watch?v=QBrK7YYcWzs
i thought thetoucher solution must be the best solution. I do it like this :
while ( !angleCorrect ){
tempAngle += 5;
if(ray distance > maxDistance ){
angleCorrect = true;
}
}
but it's consumme a lot of performance. As you can see sometime the camera turn around and sometimes the cam just zoom to the collision point.
Someone know how can i do it ?
atomix
July 31, 2011, 8:28pm
12
@stomrage :Step1: One cast Step2: Camera Navigate : Avoid things
1 Like
atomix
July 31, 2011, 8:31pm
13
what do you mean in the step2 is to link the Camera to a CameraNode, create a PhysicsControl like RigidBodyControl with a SphereCollisionShape set the kinematic true and add the camNode in the physicSpace ? For the first step i must create a CollisionListener ?If the mesh is totally hide cast a ray.
maybe if you are using physics you can use the PhysicsRayTestResult it works pretty nice for me except that essentially its a sort of hack since i currently have to duplicate chaseCamera and change some of its access modifiers. But it does detect collision and doesn’t go inside of a mesh or say outside of a tunnel if your inside of it.
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and open the template in the editor.
@author Kyle Williams
Constructs the chase camera
@param cam the application camera
@param target the spatial to follow/ 100)))/100 * targetDistance;
sets the current zoom distance for the chase camera
@param new distance@Override
@return cam the camera registered by this controller///inputManager.addMapping (ChaseCamZoomIn, new MouseAxisTrigger(MouseInput.AXIS_WHEEL, false));//inputManager.addMapping (ChaseCamZoomOut, new MouseAxisTrigger(MouseInput.AXIS_WHEEL, true));//inputManager.addMapping (ChaseCamToggleRotate, new MouseButtonTrigger(MouseInput.BUTTON_LEFT));//inputManager.addMapping (ChaseCamToggleRotate, new MouseButtonTrigger(MouseInput.BUTTON_RIGHT));@Override value);}@Override
I’ve made one method but it’s still in progress:
[java]private void calculatePhysic() {
The main :
test
@author normenhansen/@Override @Override @Override = 1000; FastMath.PI; FastMath.PI;
atomix
August 4, 2011, 10:34am
20
Sorry that I reply so late…
My English it’s not so good, sorry for these obscure sentences!