get point of Collision

Jan_ · Post by **Jan_** » Wed Sep 28, 2005 7:07 am

Hiho

I need a little help,

how can i get x,y,z Coords from an collision?

hope that it is posible.

Ababala · Post by **Ababala** » Wed Sep 28, 2005 9:42 am

Have you tried to look at the colision example?

Guest · Post by **Guest** » Wed Sep 28, 2005 11:37 am

yep,

there i found only, what mesh(Scene) have a Collision, not where the Kollision is.
I want the find out, the exact X,Y,Z Cordinaten of the Collision.

Jan_ · Post by **Jan_** » Wed Sep 28, 2005 11:39 am

Sorry 4 Double post,

I make a Line Collision with 2D coords.
and want the point of the Collision back, but @ time i only get the Mesh.

Spintz · Post by **Spintz** » Wed Sep 28, 2005 12:46 pm

look at the CSceneCollisionManager, specifically the getCollisionPoint function. You should need no more information that that!

puh · Post by **puh** » Wed Sep 28, 2005 6:57 pm

Jan_, you did not look at the irrlicht-0.12.0\examples\07.Collision as i see, because there is an example of the collision POINT!
Just look at the main.cpp what mean core::vector3df intersection.

Jan_ · Post by **Jan_** » Thu Sep 29, 2005 6:27 am

Outsch,

I found the command i searched,
GetRayFromScreenCoordinates ...
Many thanks 4 help.

Spintz · Post by **Spintz** » Thu Sep 29, 2005 7:34 am

No, no, no.

That function gives you a point where a line intersects the screen. For a random line, use getCollisionPoint!

Jan_ · Post by **Jan_** » Thu Sep 29, 2005 9:03 am

Yep, that was, what i wanted

But i think with my bad english 1 can't tell you that right

my code now:

Code: Select all

If (smgr.getSceneCollisionManager().getCollisionPoint(
smgr.getscenecollisionmanager().getRayFromScreenCoordinates (T_irrPosition2d_s32.create(10,10)
), selector, intersection, tri))

(Attentione, it is not in C++ Syntax)

Hm, it is very Slow, it need upto 4 ms on my Laptop(3Ghz, 512 mb Ram & Gf440go)