IAnimatedMesh Collision detection problem on Terain Nodes.

Cube3 · Post by **Cube3** » Mon Apr 24, 2006 2:07 pm

Does anyone have a workaround for when an MD2 character gets stuck on a Terrain Node? I am currently using

CreateTerrainTriangleSelector together with CreateCollisionResponseAnimator on an AnimatedMesh.

Nezumi · Post by **Nezumi** » Mon Apr 24, 2006 4:31 pm

Use a physic engine, Irrlicht isn't good for that ^^

buhatkj · Post by **buhatkj** » Mon Apr 24, 2006 8:22 pm

without access to raw vertex/triangle data, it is impossible to have mesh-based collision using any physics engine with irrlicht. that would include terrain.
I am trying to write a function for just that purpose, to add the ability to grab a .NET collection filled with vertex data, but have hit a snag. Perhaps if I figure it out, or get a little help, this WILL be possible soon, but it still wont be as nice as the c++. somebody needs to convince niko that the .NET wrapper needs some love!! even in 1.0 we got almost nothing. I guess the c++ is a lot more popular...oh well...

Cube3 · Post by **Cube3** » Tue Apr 25, 2006 7:11 am

I have a work around, it sure is cheesy. I am detecting previous position if it's the same the character got stuck and I raise the Y by 0.1f each time until the next position differs from the previous (which means we are not stuck).

I have a video here (do not play the video in winamp, it will lockup, play it using VLAN or WindowsMedia)

http://www.platform3d.com/images/movies/l5.mpg

There is a prrevious posting on extending Irrlicht.NET to get mesh buffers in the .NET wrapper. Anyone got that to work?

see: http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=12493

Currently looking at using TAO ODE to build Trimesh data from vertices.

buhatkj · Post by **buhatkj** » Wed Apr 26, 2006 11:42 am

Hey there, this thread will detail how, and contains a download link for some meshbuffer code for .NET. I tried it, it seems to work!

http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=12493

Cube3 · Post by **Cube3** » Wed Apr 26, 2006 7:57 pm

Yep I posted that link already, seems pretty cool. Not sure how to do trimeshes on a terrrain, as that's not a mesh, it changes the number of vertices based on camera distance.

This video shows, the workaround and it can be done on terrain without physics engine.

http://tcpx.com/temp/fraps.wmv

Irrlicht Engine

IAnimatedMesh Collision detection problem on Terain Nodes.

IAnimatedMesh Collision detection problem on Terain Nodes.

good luck with that...

meshbuffers