Real-Time Physics Simulation Forum

Code: Select all

 int res = 300;
        ByteBuffer bytes = ByteBuffer.allocateDirect(res*res*4);

        for(int i=0; i<res*res; i++)
        {
            bytes.putFloat(0);
        }

        terrainShape=new btHeightfieldTerrainShape(res,res,bytes.asFloatBuffer(),1,0.0f,0.0f,1,false);

Code: Select all

public void MylRayTest(ArrayList<ModelInstance> instances, Model model)
    {
        float max = Float.MIN_VALUE;
        float min = Float.MAX_VALUE;

        for(int i=-500; i<500; i+=5)
        {
            for(int j=-500; j<500; j+=5)
            {
                Vector3 from=new Vector3(new Vector3(i,10000,j));
                Vector3 to = new Vector3(new Vector3(i,-10000,j));
                ClosestRayResultCallback callback = new ClosestRayResultCallback(from, to);
                world.rayTest(from, to, callback);

                if(callback.hasHit())
                {
                    Vector3 t = new Vector3();
                    callback.getHitPointWorld(t);

                    instances.add(new ModelInstance(model, t));

                    float tt = t.y;
                    if(tt>max) max=tt;
                    if(tt<min) min=tt;
                }
                callback.dispose();
            }
        }
        System.out.println("Max: "+max+" Min: "+min);
    }