Moving a character to a point

[MoDDiB]

BrumeVector dir = "cliked point" - "tiny.Pos";
tiny.Orient( dir , the good up vector );
it's enough ....

but your model may not watch in the good direction..
So before orienting you can rotate the object a little with changes like dir.X = -dir.X;

[rubbish]

My problem is the tiny.Orient....
I think tiny moved on the plane,it's no need to change the up vector,that's right?
So I change the tiny.Dir.
tin.Pos (0,0,0)
The point (5,0,5)
And then....tiny's mesh has been changed....very strange....

[Silmaryls]

Rubbish, you still need the up vector for the Orient method because it uses Dir and Up to compute Right vector.

If you change only Dir it will flatten your model into something weird.


so you have to call Orient(myNewDir, upVector)

upVector may be a constant.

[rubbish]

But...tiny.Orient("cliked point" - "tiny.Pos",upVector),the same result...strange mesh.....Yes,upVector is a constant.

[MoDDiB]

Do you use a normalized direction ?

[rubbish]

What??
Can u explain?

[MoDDiB]

When you do some calcul with a vector this one must be normalized i.e. his length = 1.

just do dir.Normalize(); before orient .

[Dizzyka]

Hello,
I'm having issues with the same thing, though I don't want to move a character to a point I just want to get accurate selecting. I followed the "selecting a sphere" example and implemented it in my code however I can't get my code to select the object beneath my mouse cursor. Instead the ray that comes from the camera is the same no matter where I click with the mouse. The ray only changes when I move the camera. How can I create a ray to test intersection from my mouse pointer?

thanks,

Dizzy

[Dizzyka]

Alright I think i figured it out. I don't know whether it's a bug or not, perhaps you can shed light on it Silmaryls! Ok my first problem was that I was calling ActiveCamera.GetRayFromMouse(); That would give me the same ray every time. Then I started calling ActiveCamera.GetRayFromMouse(WindowMouseX,WindowMouseY); . That call changes the ray depending on where the mouse is. Now the real problem: I have Brume rendering to a panel inside of a form (the brume form, this) When I have the panel that brume is rendering to set to dock: fill the selection of the mouse ray is off by quite a bit. If I change dock to "none" the selection works perfectly. I also have a piece of code outputting the value if this.isMouseInBrume() to the window. I don't know how that call works but it goes false before my mouse pointer leaves the panel.

thanks!
Dizzy

[Silmaryls]

Hi Dizzy,

It sounds like a bug.
Can you post a piece of code so I can test that in the 'Bugs' forum ?

Thanks