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So how comes that i can create a raytracing renderer using c_trace?

raytracing is easy. tongue the ellipsoid collision detection and response is the problem. that's much harder to do properly and there definitely are some issues with it...

btw. i also wrote a simple raytracer with ambient occlusion a few years ago and posted it here on the forum. if i remember correctly there were some problems because of var precision though.

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ODE physics, A6 map collision detection and AABB collision was now removed from the A8 engine. This has the following consequences:

* Terrain is now always chunked, also in the Free and Extra versions.
* Old A6 WMB files must be recompiled to the A7 WMB format.
* Controllable with the collision_mode variable, levels and entities are now loaded noticeably faster and consume less memory.
does this mean the ellipsoid collision detection got removed and replaced with some physx functions? would be nice...