NewtonWorldConvexCast always returns 1.2000005

[carli2]

Hi,

NewtonWorldConvexCast always returns 1.2000005 as param. The function result is always 0.
This was the case in some corner cases for core300. in core301, it is now always the case. What am I doing wrong?

Here's my code: (nothing different from the examples. you have a _ASSERTE (param < 1.0f); in your code, but param always comes above this value

Code: Select all

function TWorldObject.moveTill(matrix: TMatrix4; pos: TVec3): boolean;
var
    force: TVec3;
    len: single;
    info: array[0..15] of NewtonWorldConvexCastReturnInfo;
    param: single;
    i: integer; max: single;
begin
  len:=sqrt(sqr(pos[0])+sqr(pos[1])+sqr(pos[2]));
  if len<0.001 then exit; // Keine Bewegung
  force:=ApplyMatrixToVec3(matrix, pos); // Zielposition
  param:=0;
  i:=length(info);
  i:=NewtonWorldConvexCast(NewtonBodyGetWorld(newton), @matrix[0][0], @force[0], NewtonBodyGetCollision(newton), @param, self, @myprefilter, @info[0], i, 0);
  max:=1;
  if i>0 then begin
   max:=param;
   result:=true;
  end else result:=false;
  if max>0 then begin
   MatrixSetTransform(matrix, MatrixGetTransform(matrix) * (1-max) + force * max);
   NewtonBodySetMatrix(newton, @matrix[0][0]);
  end;
end;

[Julio Jerez]

yes I have to comnet it for a momenet untill I complete the secund part of the collision system.
I see if I can have back this weekend.

[carli2]

So the only thing I can do is to wait?

[carli2]

When will NewtonWorldConvexCast work in core300?
Or how can I workaround that?

[Julio Jerez]

I think the eassiest is to wait until I put it back. I am working on getting the CCD on.

But this is not a simple bug fix, core 300 move away from the legacy contact calculateor dgMinkowskiConv.cpp core 200
to a more streamlined contact calculator implement as a method of the common convex shape.
This takes advantage of the shape definition and to be faster, but I has not done all function yet.
It will be in sometime this week.

what are you using convex cast for?

[carli2]

what are you using convex cast for?

For nearly everything: Character controller, object placement...
When I run gwX with ConvexCast returning 0 with param 1.20000005, all spawned objects start under the ground surface - completely unplayable.

I can stay at core200 until newton 3 works correctly.