Irrlicht Engine

1)
the question is: "I raycast a body and get the point where the line meet the body. How can i know if the point is on arm, on a leg, excc..?". The aim of a physics engine is to simulate physics, not to get wich part of your body the point in inside. However no wrppers implementing this feature. but you may use joint (with ms3d or x, irrlicht support these joint file format only). Create a joint for arm, a joint for hand, a joint for the head, exc... Then raycast the line and find the point. Get ALL joint of your node. For ALL the joint get the respective bounding box. the recursive call irr::core::aabbox3d::isPointInside and pass the point to check in wich joint the point is inside

However this is not the aim of a physics engine\a wrapper

2)

Also, can you set your own callback functions for when specific objects collide?? Like if I make an asteroid game, if I want the asteroids to bounce off of each other, that shouldn't be too hard, but if when they hit the ship, I need to damage the ship, then I'd need my own callback function right

This is possible

- create two materials, one for the spaceship one for the asteroids (IWorld::createMaterial and IBody::setMaterial)
- see IMaterial::setCollisionCallback function. IrrNewt will call your own functions when the asteroids collide with the spaceship

3)irrnewt don't apply gravity by default. if you want gravity you need to add your own force by calling the proper function (addForceContinuous) So if you write nothing irrnewt doesn't apply gravity for default

Yeah, I didn't think the leg, arm, thing would be done for me, but I thought I'd ask.

IrrNewt work with Mingw?

next release yes

coming soon?
when?
=-[

yes, it's coming soon

=[

i have a bug with getFirstCollisionPointEx. please be patient. i will release new version immediately after this bug fix (if i will get the problem
)

IrrNewt 0.2 does not appear to function with Irrlicht 1.3, and does not seem to recompile correctly either (Some of the internal arrays referenced by IrrNewt in Matrix4 are now private, for instance)

Is IrrNewt 0.3 going to be Irr 1.3 compatible?

in 0.3 there will be an inline function to get matrix array

(so no &mat.M[0] but newton::Hidden::GetPointer(mat)

you will need to simply change this function to compile irrnewt in 1.3 or leave it for 1.2

How can I make a body collide _ONLY_ with selected/static bodies, and ignore the collisions with all the other bodies ? I've made a 3rd person camera within a sphere. I want it to collide only with the terrain/tree's/buildings.

assign a material to every KIND of body (a material for terrains, a material for waters) (IWorld::createMaterial)

assign every material to the respective body (IBody::setMaterial)

use IMaterial::setCollidable (with false as parameter) on bodies that you want NOT TO COLLIDE with the camera

0.3 released

gonna give it a try... (have to compile it for DevC++ and don´t know if i´m able:oops: )
tgm

there is a project in the source for dev c++