public static Frame3f GetSOLocalFrame(SceneObject so, CoordSpace eSpace)
{
if (eSpace == CoordSpace.SceneCoords)
{
// new code maps object frame up to scene
// [TODO] this is not the most efficient approach! can at least get the object
// frame directly, and avoid first local-to-obj xform
Frame3f objF = Frame3f.Identity;
Frame3f result = SceneTransforms.ObjectToScene(so, objF);
// [RMS] old code that mapped up to world, and then down to scene
// Problem with this code is that it is unstable - if scene-to-world xform changes,
// then scene frame will numerically change. Which is a problem.
//Frame3f sceneW = UnityUtil.GetGameObjectFrame(so.GetScene().RootGameObject, CoordSpace.WorldCoords);
//Frame3f objW = UnityUtil.GetGameObjectFrame(so.RootGameObject, CoordSpace.WorldCoords);
//Frame3f result = sceneW.ToFrame(objW);
//// world coords have scene scale applied, we don't want that in scene coords
//if (so.GetScene().GetSceneScale() != 1.0f)
// result = result.Scaled(1.0f / so.GetScene().GetSceneScale());
return(result);
}
else
{
return(UnityUtil.GetGameObjectFrame(so.RootGameObject, eSpace));
}
}
// same as LocalFrame, but LocalFrame may be tilted up/down, which we want to undo
public virtual Frame3f GetLevelViewFrame(CoordSpace eSpace)
{
// otherwise we can't just set y to 0...
Debug.Assert(eSpace == CoordSpace.WorldCoords);
Frame3f viewF = UnityUtil.GetGameObjectFrame(ActiveCamera.GameObject(), eSpace);
float fAngle = VRUtil.PlaneAngleSigned(Vector3f.AxisZ, viewF.Z, 1);
return(new Frame3f(viewF.Origin, Quaternionf.AxisAngleD(Vector3f.AxisY, fAngle)));
}
public static Frame3f GetSOLocalFrame(SceneObject so, CoordSpace eSpace)
{
if (eSpace == CoordSpace.SceneCoords)
{
Frame3f sceneW = UnityUtil.GetGameObjectFrame(so.GetScene().RootGameObject, CoordSpace.WorldCoords);
Frame3f objW = UnityUtil.GetGameObjectFrame(so.RootGameObject, CoordSpace.WorldCoords);
Frame3f result = sceneW.ToFrame(objW);
// world coords have scene scale applied, we don't want that in scene coords
if (so.GetScene().GetSceneScale() != 1.0f)
{
result = result.Scaled(1.0f / so.GetScene().GetSceneScale());
}
return(result);
}
else
{
return(UnityUtil.GetGameObjectFrame(so.RootGameObject, eSpace));
}
}
public static void SetSOLocalFrame(SceneObject so, CoordSpace eSpace, Frame3f newFrame)
{
if (eSpace == CoordSpace.SceneCoords)
{
// scene frames should not be scaled by scene scale, but we want to set as world
// coords, so we need to apply it now
if (so.GetScene().GetSceneScale() != 1.0f)
{
newFrame = newFrame.Scaled(so.GetScene().GetSceneScale());
}
Frame3f sceneW = UnityUtil.GetGameObjectFrame(so.GetScene().RootGameObject, CoordSpace.WorldCoords);
Frame3f objW = sceneW.FromFrame(newFrame);
UnityUtil.SetGameObjectFrame(so.RootGameObject, objW, CoordSpace.WorldCoords);
}
else
{
UnityUtil.SetGameObjectFrame(so.RootGameObject, newFrame, eSpace);
}
}
// cockpit frame is oriented such that
// +X is right
// +Y is up
// +Z is into scene
// note that for most unity mesh objects are created on the XZ plane, and so you
// need to rotate world_y to point to -cockpit_z, ie Quaternion.FromToRotation (Vector3.up, -cockpitF.Z)
public virtual Frame3f GetLocalFrame(CoordSpace eSpace)
{
return(UnityUtil.GetGameObjectFrame(gameobject, eSpace));
}
public virtual Frame3f GetLocalFrame()
{
return(UnityUtil.GetGameObjectFrame(go, CoordSpace.ObjectCoords));
}
public virtual Frame3f GetWorldFrame()
{
return(UnityUtil.GetGameObjectFrame(go, CoordSpace.WorldCoords));
}
// extracts MeshFilter object from input GameObject and passes it to a custom constructor
// function MakeSOFunc (if null, creates basic MeshSO). Then optionally adds to Scene,
// preserving existing 3D position if desired (default true)
public static SceneObject ImportExistingUnityMesh(GameObject go, FScene scene,
bool bAddToScene = true, bool bKeepWorldPosition = true, bool bRecenterFrame = true,
Func <Mesh, SOMaterial, SceneObject> MakeSOFunc = null)
{
MeshFilter meshF = go.GetComponent <MeshFilter>();
if (meshF == null)
{
throw new Exception("SceneUtil.ImportExistingUnityMesh: gameObject is not a mesh!!");
}
Vector3f scale = go.GetLocalScale();
// [RMS] why don't we bake transform into mesh ??! then we could handle non-uniform scaling...
if (SceneTransforms.IsUniformScale(scale) == false)
{
throw new Exception("UnitySceneUtil.ImportExistingUnityMesh: nonuniform scaling is not supported...");
}
Mesh useMesh = meshF.mesh; // makes a copy
AxisAlignedBox3f bounds = useMesh.bounds; // bounds.Center is wrt local frame of input go
// ie offset from origin in local coordinates
// if we want to move frame to center of mesh, we have to re-center it at origin
// in local coordinates
if (bRecenterFrame)
{
UnityUtil.TranslateMesh(useMesh, -bounds.Center.x, -bounds.Center.y, -bounds.Center.z);
useMesh.RecalculateBounds();
}
SceneObject newSO = (MakeSOFunc != null) ?
MakeSOFunc(useMesh, scene.DefaultMeshSOMaterial)
: new MeshSO().Create(useMesh, scene.DefaultMeshSOMaterial);
if (bAddToScene)
{
scene.AddSceneObject(newSO, false);
}
if (bKeepWorldPosition)
{
// compute world rotation/location. If we re-centered the mesh, we need
// to offset by the transform we applied above in local coordinates
// (hence we have to rotate & scale)
if (go.transform.parent != null)
{
throw new Exception("UnitySceneUtil.ImportExistingUnityMesh: Not handling case where GO has a parent transform");
}
Frame3f goFrameW = UnityUtil.GetGameObjectFrame(go, CoordSpace.WorldCoords);
Vector3f originW = goFrameW.Origin;
if (bRecenterFrame)
{
originW += goFrameW.Rotation * (scale * bounds.Center); // offset initial frame to be at center of mesh
}
// convert world frame and offset to scene coordinates
Frame3f goFrameS = scene.ToSceneFrame(goFrameW);
Vector3f boundsCenterS = scene.ToSceneP(originW);
// translate new object to position in scene
Frame3f curF = newSO.GetLocalFrame(CoordSpace.SceneCoords);
curF.Origin += boundsCenterS;
newSO.SetLocalFrame(curF, CoordSpace.SceneCoords);
// apply rotation (around current origin)
curF = newSO.GetLocalFrame(CoordSpace.SceneCoords);
curF.RotateAround(curF.Origin, goFrameS.Rotation);
newSO.SetLocalFrame(curF, CoordSpace.SceneCoords);
// apply local scale
newSO.SetLocalScale(scale);
}
return(newSO);
}
// extracts all MeshFilter objects from input GameObject and appends them, then passes to
// function MakeSOFunc (if null, creates basic MeshSO). Then optionally adds to Scene,
// preserving existing 3D position if desired (default true)
public static SceneObject ImportExistingUnityGO(GameObject go, FScene scene,
bool bAddToScene = true, bool bKeepWorldPosition = true, bool bRecenterFrame = true,
Func <DMesh3, SOMaterial, SceneObject> MakeSOFunc = null)
{
List <MeshFilter> filters = new List <MeshFilter>();
List <GameObject> children = new List <GameObject>()
{
go
};
UnityUtil.CollectAllChildren(go, children);
foreach (var cgo in children)
{
if (cgo.GetComponent <MeshFilter>() != null)
{
filters.Add(cgo.GetComponent <MeshFilter>());
}
}
if (filters.Count == 0)
{
throw new Exception("SceneUtil.ImportExistingUnityGO: no meshes!!");
}
DMesh3 CombineMesh = new DMesh3(MeshComponents.VertexNormals | MeshComponents.VertexColors);
MeshEditor editor = new MeshEditor(CombineMesh);
int gid = 0;
foreach (MeshFilter mesh in filters)
{
fMesh uMesh = new fMesh(mesh.sharedMesh);
using (var imesh = uMesh.CreateCachedIMesh()) {
editor.AppendMesh(imesh, ++gid);
}
}
Vector3f scale = go.GetLocalScale();
AxisAlignedBox3d bounds = CombineMesh.CachedBounds; // bounds.Center is wrt local frame of input go
// ie offset from origin in local coordinates
// if we want to move frame to center of mesh, we have to re-center it at origin
// in local coordinates
if (bRecenterFrame)
{
MeshTransforms.Translate(CombineMesh, -bounds.Center.x, -bounds.Center.y, -bounds.Center.z);
}
SceneObject newSO = (MakeSOFunc != null) ?
MakeSOFunc(CombineMesh, scene.DefaultMeshSOMaterial)
: new DMeshSO().Create(CombineMesh, scene.DefaultMeshSOMaterial);
newSO.Name = go.name;
if (bAddToScene)
{
scene.AddSceneObject(newSO, false);
}
if (bKeepWorldPosition)
{
// compute world rotation/location. If we re-centered the mesh, we need
// to offset by the transform we applied above in local coordinates
// (hence we have to rotate & scale)
if (go.transform.parent != null)
{
throw new Exception("UnitySceneUtil.ImportExistingUnityGO: Not handling case where GO has a parent transform");
}
Frame3f goFrameW = UnityUtil.GetGameObjectFrame(go, CoordSpace.WorldCoords);
Vector3f originW = goFrameW.Origin;
if (bRecenterFrame)
{
originW += goFrameW.Rotation * (scale * (Vector3f)bounds.Center); // offset initial frame to be at center of mesh
}
// convert world frame and offset to scene coordinates
Frame3f goFrameS = scene.ToSceneFrame(goFrameW);
Vector3f boundsCenterS = scene.ToSceneP(originW);
// translate new object to position in scene
Frame3f curF = newSO.GetLocalFrame(CoordSpace.SceneCoords);
curF.Origin += boundsCenterS;
newSO.SetLocalFrame(curF, CoordSpace.SceneCoords);
// apply rotation (around current origin)
curF = newSO.GetLocalFrame(CoordSpace.SceneCoords);
curF.RotateAround(curF.Origin, goFrameS.Rotation);
newSO.SetLocalFrame(curF, CoordSpace.SceneCoords);
// apply local scale
newSO.SetLocalScale(scale);
}
return(newSO);
}
override public bool UpdateCapture(InputEvent e)
{
if (eState == CaptureState.ClickType && FindHitGO(e.ray) != null)
{
return(true);
}
// otherwise we fall into drag state
eState = CaptureState.DragType;
if (newPrimitive == null)
{
newPrimitive = CreatePrimitive();
fPrimScale = 1.0f;
if (newPrimitive is PivotSO)
{
fPrimShift = 0.0f;
}
else
{
if (newPrimitive is PrimitiveSO)
{
if (SavedSettings.Restore("DropPrimButton_scale") != null)
{
fPrimScale = (float)SavedSettings.Restore("DropPrimButton_scale");
newPrimitive.SetLocalScale(fPrimScale * Vector3f.One);
}
}
fPrimShift = newPrimitive.GetLocalBoundingBox().Extents[1] * TargetScene.GetSceneScale();
}
// [RMS] this is kind of cheating - we are going to tell this SO
// it is part of the scene, but not actually put it in the scene.
// This is because sometimes the SO needs to query the scene/camera
// (eg for pivot resizing)
TargetScene.ReparentSceneObject(newPrimitive, false);
newPrimitive.SetScene(TargetScene);
lastHitF = UnityUtil.GetGameObjectFrame(TargetScene.RootGameObject, CoordSpace.WorldCoords);
newPrimitive.SetLocalFrame(lastHitF.Translated(fPrimShift, 1), CoordSpace.WorldCoords);
}
// [RMS] only Touch for this??
if (InputState.IsDevice(e.device, InputDevice.OculusTouch) && newPrimitive is PrimitiveSO)
{
Vector2f vStick = e.input.StickDelta2D((int)e.side);
if (vStick[1] != 0)
{
fPrimScale = fPrimScale * (1.0f + vStick[1] * 0.1f);
fPrimScale = MathUtil.Clamp(fPrimScale, 0.01f, 10.0f);
newPrimitive.SetLocalScale(fPrimScale * Vector3f.One);
fPrimShift = newPrimitive.GetLocalBoundingBox().Extents[1] * TargetScene.GetSceneScale();
}
}
AnyRayHit hit = null;
if (TargetScene.FindSceneRayIntersection(e.ray, out hit))
{
update_position(hit);
newPrimitive.SetLocalFrame(lastHitF.Translated(fPrimShift, 1), CoordSpace.WorldCoords);
}
// [RMS] have to do this because prim is not part of scene yet,
// and things like pivots need to be resized
if (newPrimitive != null)
{
newPrimitive.PreRender();
}
return(true);
}
// utility functions
public Frame3f GetObjectFrame()
{
return(UnityUtil.GetGameObjectFrame(RootGameObject, CoordSpace.ObjectCoords));
}
