I have a Terrain that i transform with ent_getvertex and ent_setvertex. After that i use a c_trace to the Terrain, but the hit position (target) is always from the old (untransformed) Terrain.

How can i do that after ent_setvertex the c_trace gives the right pos?

Before calling c_trace (After You have moved terrain vertexes)
recalculate the terrain ent_fixnormals( ENTITY*,var frame)

or

c_updatehull

c_updatehull works, thanks a lot. With ent_fixnormals i have problems, because it should work also with chunked terrains.

I think first, c_updatehull only update the boundingbox. Learning some more, thanks

hi,

thats right and it works because your terrain's bounding box is not a simple cube - its polygon collsision.


,gri

Hello again. c_updatehull works perfectly with unchunked terrain, but sometimes with chunked terrain c_trace not hit the terrain. I don`t can figure out why sometimes it works and sometimes not.

hi,

sadly I did my digging experiences with ent_setvertex with a single terrain only.

Try to follow your trace-ray with an particle and draw a single point at the hit position
like ...draw_point3d(temp,vector(0,0,255),100,3);.
So you can be shure the trace works right.

Does it happen when you "stand" upon terrain_A and trace into terrain_B?

Where do you declare the Contract struct?
...CONTACT* c = ent_getvertex(Eterr,NULL,i);

If you do it inside a function, maybe in a while-loop? So dont forget to release the pointer after using.
Better declare it outside as global.


regards,
gri

Trace works right, checked already with drawline. Have only one terrain and a free Camera code that is attachet to a Dummy entity. No more entities. (it is a editor for deform a terrain that i want to do).

The Contact struct is ok too

CONTACT* c = ent_getvertex(my,NULL,dt_vertex_nr);
c.v = NULL;
vec_for_ent (c.x, my);

But no Problem, i can work only with unchunked Terrains. Thanks

EDIT: I see now in the Bugforum that there is a bug with ent_setvertex and chunked terrain....
ent_setvertex sometimes left 'gaps' in chunked terrain (fixed in 7.81.8)