void update_source()
{
TransformableSO from = Source as TransformableSO;
Frame3f FrameS = from.GetLocalFrame(CoordSpace.SceneCoords);
TransformableSO to = Target as TransformableSO;
relativeF = SceneTransforms.SceneToObject(to, FrameS);
}
public void UpdateBrushPreview(Frame3f vFrameW, int nHitTID)
{
Frame3f vFrameS = scene.ToSceneFrame(vFrameW);
Frame3f vFrameL = SceneTransforms.SceneToObject(Target, vFrameS);
update_preview(vFrameL, nHitTID);
lastBrushPosW = vFrameW;
}
public override OpStatus Revert()
{
if (space == CoordSpace.SceneCoords)
{
Frame3f localF = SceneTransforms.SceneToObject(Target, initialFrame);
Frame3f setF = Target.GetLocalFrame(CoordSpace.ObjectCoords).FromFrame(localF);
Target.RepositionPivot(setF);
}
else
{
Target.RepositionPivot(initialFrame);
}
return(OpStatus.Success);
}
public void UpdateBrushStroke(Frame3f vFrameW, int nHitTID)
{
if (in_stroke == false)
{
throw new Exception("SurfaceBrushTool.UpdateBrushStroke: not in brush stroke!");
}
Frame3f vFrameS = scene.ToSceneFrame(vFrameW);
Frame3f vFrameL = SceneTransforms.SceneToObject(Target, vFrameS);
update_stroke(vFrameL, nHitTID);
lastBrushPosW = vFrameW;
}
public override void AppendVertex(Vector3d v)
{
base.AppendVertex(v);
// map v to local coords
LocalVertexRef r = new LocalVertexRef();
r.localPos = SceneTransforms.SceneToObject(Target, v);
SurfacePoints.Add(r);
if (Curve.VertexCount != SurfacePoints.Count)
{
throw new Exception("SurfaceCurvePreview: counts are out of sync!!");
}
}
public void BeginBrushStroke(Frame3f vFrameW, int nHitTID)
{
if (in_stroke)
{
throw new Exception("SurfaceBrushTool.BeginBrushStroke: already in brush stroke!");
}
Frame3f vFrameS = scene.ToSceneFrame(vFrameW);
Frame3f vFrameL = SceneTransforms.SceneToObject(Target, vFrameS);
begin_stroke(vFrameL, nHitTID);
in_stroke = true;
lastBrushPosW = vFrameW;
}
virtual public AxisAlignedBox3f GetLocalBoundingBox()
{
if (vChildren.Count == 0)
{
return(new AxisAlignedBox3f(Vector3f.Zero, 0.5f));
}
Box3d combine = vChildren[0].GetBoundingBox(CoordSpace.SceneCoords);
for (int k = 1; k < vChildren.Count; ++k)
{
Box3d childbox = vChildren[k].GetBoundingBox(CoordSpace.SceneCoords);
combine = Box3d.Merge(ref combine, ref childbox);
}
Box3f boxLocal = SceneTransforms.SceneToObject(this, (Box3f)combine);
return(boxLocal.ToAABB());
}
override public bool FindRayIntersection(Ray3f worldRay, out SORayHit hit)
{
hit = null;
// project world ray into local coords
FScene scene = GetScene();
Ray3f sceneRay = scene.ToSceneRay(worldRay);
Ray3f localRay = SceneTransforms.SceneToObject(this, sceneRay);
// also need width in local coords
float sceneWidth = scene.ToSceneDimension(visibleWidth);
float localWidth = SceneTransforms.SceneToObject(this, sceneWidth) * HitWidthMultiplier;
// bounding-box hit test (would be nice to do w/o object allocation...)
AxisAlignedBox3d hitBox = localBounds;
hitBox.Expand(localWidth);
IntrRay3AxisAlignedBox3 box_test = new IntrRay3AxisAlignedBox3(localRay, hitBox);
if (box_test.Find() == false)
{
return(false);
}
// raycast against curve (todo: spatial data structure for this? like 2D polycurve bbox tree?)
double rayHitT;
if (CurveUtils.FindClosestRayIntersection(curve, localWidth, localRay, out rayHitT))
{
hit = new SORayHit();
// transform local hit point back into world coords
Vector3f rayPos = localRay.PointAt((float)rayHitT);
Vector3f scenePos = SceneTransforms.ObjectToSceneP(this, rayPos);
hit.hitPos = SceneTransforms.SceneToWorldP(scene, scenePos);
hit.fHitDist = worldRay.Project(hit.hitPos);
hit.hitNormal = Vector3f.Zero;
hit.hitGO = root;
hit.hitSO = this;
return(true);
}
return(false);
}
/// <summary>
/// Find intersection of *WORLD* ray with Mesh
/// </summary>
override public bool FindRayIntersection(Ray3f rayW, out SORayHit hit)
{
hit = null;
if (enable_spatial == false)
{
return(false);
}
validate_spatial();
// convert ray to local
FScene scene = this.GetScene();
Ray3f rayS = scene.ToSceneRay(rayW);
Ray3d local_ray = SceneTransforms.SceneToObject(this, rayS);
int hit_tid = spatial.FindNearestHitTriangle(local_ray);
if (hit_tid != DMesh3.InvalidID)
{
IntrRay3Triangle3 intr = MeshQueries.TriangleIntersection(mesh, hit_tid, local_ray);
Vector3f hitPos = (Vector3f)local_ray.PointAt(intr.RayParameter);
hitPos = SceneTransforms.ObjectToSceneP(this, hitPos);
hitPos = scene.ToWorldP(hitPos);
Vector3f hitNormal = (Vector3f)mesh.GetTriNormal(hit_tid);
hitNormal = SceneTransforms.ObjectToSceneN(this, hitNormal);
hitNormal = scene.ToWorldN(hitNormal);
hit = new SORayHit();
hit.hitPos = hitPos;
hit.hitNormal = hitNormal;
hit.hitIndex = hit_tid;
hit.fHitDist = hit.hitPos.Distance(rayW.Origin); // simpler than transforming!
hit.hitGO = RootGameObject;
hit.hitSO = this;
return(true);
}
return(false);
}
void update_source()
{
Frame3f FrameS = Source.GetLocalFrame(CoordSpace.SceneCoords);
relativeF = SceneTransforms.SceneToObject(Target, FrameS);
}
