/// <summary>
/// Called form the 'Update' function whenever the input device is moved. This function
/// will snap the target object to the surface hovered by the mouse cursor.
/// </summary>
private void OnInputDeviceMoved(IInputDevice inputDevice)
{
// We will need to perform a raycast to check what lies underneath the mouse cursor.
// In order to do this, we will first create a raycast filter instance to specify
// additional information for the raycast...
SceneRaycastFilter raycastFilter = new SceneRaycastFilter();
raycastFilter.LayerMask = _objectSurfaceLayers; // The ray can hit only objects belonging to these layers
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Mesh); // Allow the ray to hit mesh objects
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Terrain); // Allow the ray to hit terrain objects
raycastFilter.IgnoreObjects.AddRange(_targetHierarchy.GetAllChildrenAndSelf()); // The ray can not hit the target object (i.e. the object we are snapping)
// Perform the raycast. If nothing is hit, just return.
SceneRaycastHit raycastHit = RTScene.Get.Raycast(inputDevice.GetRay(RTFocusCamera.Get.TargetCamera), SceneRaycastPrecision.BestFit, raycastFilter);
if (!raycastHit.WasAnythingHit)
{
return;
}
// If we reach this point we know that something was hit. We just need to find out what and based
// on what was hit, we need to fill the necessary information in the snap config instance. Basically,
// we need to specify surface inf such as the surface normal, hit point, the object that acts as the
// snap surface etc. This info is extracted from the raycast hit instance differently depending on
// whether we hit a game object or the scene grid.
if (raycastHit.WasAnObjectHit)
{
// We hit an object. Get its type and return if it's not a mesh or terrain.
GameObjectType objectType = raycastHit.ObjectHit.HitObject.GetGameObjectType();
if (objectType != GameObjectType.Mesh && objectType != GameObjectType.Terrain)
{
return;
}
// We are dealing with a mesh or terrain object. Extract the surface info from the 'ObjectHit'
// field of the raycast hit instance.
_snapConfig.SurfaceHitNormal = raycastHit.ObjectHit.HitNormal;
_snapConfig.SurfaceHitPlane = raycastHit.ObjectHit.HitPlane;
_snapConfig.SurfaceHitPoint = raycastHit.ObjectHit.HitPoint;
_snapConfig.SurfaceObject = raycastHit.ObjectHit.HitObject;
_snapConfig.SurfaceType = objectType == GameObjectType.Mesh ? ObjectSurfaceSnap.Type.Mesh : ObjectSurfaceSnap.Type.UnityTerrain;
}
else
{
// The scene grid was hit. Extract the surface info from the 'GridHit'
// field of the raycast hit instance.
_snapConfig.SurfaceHitNormal = raycastHit.GridHit.HitNormal;
_snapConfig.SurfaceHitPlane = raycastHit.GridHit.HitPlane;
_snapConfig.SurfaceHitPoint = raycastHit.GridHit.HitPoint;
_snapConfig.SurfaceType = ObjectSurfaceSnap.Type.SceneGrid;
}
// Call 'ObjectSurfaceSnap.SnapHierarchy' on the target hierarchy and pass the snap config data along.
// Note: The function requires that we first set the position of the hierarchy to the surface hit point.
_targetHierarchy.transform.position = _snapConfig.SurfaceHitPoint;
ObjectSurfaceSnap.SnapHierarchy(_targetHierarchy, _snapConfig);
}
public static GameObject SpawnInFrontOfCamera(GameObject sourceObject, Camera camera, Config config)
{
float halfSize = config.ObjectSize * 0.5f;
var boundsQConfig = new ObjectBounds.QueryConfig();
boundsQConfig.ObjectTypes = GameObjectTypeHelper.AllCombined;
boundsQConfig.NoVolumeSize = Vector3Ex.FromValue(1.0f);
Transform cameraTransform = camera.transform;
AABB aabb = ObjectBounds.CalcHierarchyWorldAABB(sourceObject, boundsQConfig);
if (!aabb.IsValid)
{
return(null);
}
Sphere sphere = new Sphere(aabb);
Vector3 fromCenterToPos = sourceObject.transform.position - sphere.Center;
float zOffset = Mathf.Max(camera.nearClipPlane + sphere.Radius, sphere.Radius / halfSize);
Vector3 spherePos = cameraTransform.position + cameraTransform.forward * zOffset;
GameObject spawned = GameObject.Instantiate(sourceObject, spherePos + fromCenterToPos, sourceObject.transform.rotation) as GameObject;
spawned.SetActive(true);
//VRCTS
spawned.name = sourceObject.name;
OBB spawnedOBB = ObjectBounds.CalcHierarchyWorldOBB(spawned, boundsQConfig);
Ray ray = new Ray(camera.transform.position, (spawnedOBB.Center - camera.transform.position).normalized);
var raycastFilter = new SceneRaycastFilter();
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Mesh);
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Terrain);
raycastFilter.AllowedObjectTypes.Add(GameObjectType.Sprite);
var rayHit = RTScene.Get.Raycast(ray, SceneRaycastPrecision.BestFit, raycastFilter);
if (rayHit.WasAnObjectHit)
{
Vector3 oldCenter = spawnedOBB.Center;
spawnedOBB.Center = rayHit.ObjectHit.HitPoint;
Vector3 offsetVector = spawnedOBB.Center - oldCenter;
offsetVector += ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(spawnedOBB, rayHit.ObjectHit.HitPlane, 0.0f);
spawned.transform.position += offsetVector;
}
return(spawned);
}
private void SnapTargets()
{
if (!CalculateTargetAABB())
{
return;
}
Vector3 oldCenter = _targetAABB.Center;
_targetAABB.Center = _sitSurface.SitPoint;
Plane sitSurfacePlane = _sitSurface.SitPlane;
if (_sitBelowSurface)
{
sitSurfacePlane = sitSurfacePlane.InvertNormal();
}
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(_targetAABB, sitSurfacePlane, 0.0f);
_targetAABB.Center += sitOnPlaneOffset;
Vector3 parentMove = _targetAABB.Center - oldCenter;
foreach (var parent in _targetParents)
{
parent.transform.position += parentMove;
}
if (!SharedHotkeys.EnableFlexiSnap.IsActive())
{
var snapConfig = new Object2ObjectSnap.Config();
snapConfig.Prefs = SharedHotkeys.EnableMoreControl.IsActive() ? Object2ObjectSnap.Prefs.None : Object2ObjectSnap.Prefs.TryMatchArea;
snapConfig.AreaMatchEps = 1e-2f;
snapConfig.SnapRadius = SharedSettings.SnapRadius;
snapConfig.DestinationLayers = SharedSettings.SnapDestinationLayers;
snapConfig.IgnoreDestObjects = new List <GameObject>();
snapConfig.IgnoreDestObjects.AddRange(_targetParents);
foreach (var parent in _targetParents)
{
snapConfig.IgnoreDestObjects.AddRange(parent.GetAllChildren());
}
Object2ObjectSnap.Snap(_targetParents, snapConfig);
}
}
private void SnapTargetsToSurface()
{
if (_grabSurfaceInfo.SurfaceType == GrabSurfaceType.Invalid)
{
return;
}
ObjectSurfaceSnap.SnapConfig snapConfig = new ObjectSurfaceSnap.SnapConfig();
snapConfig.SurfaceHitPoint = _grabSurfaceInfo.AnchorPoint;
snapConfig.SurfaceHitNormal = _grabSurfaceInfo.AnchorNormal;
snapConfig.SurfaceHitPlane = _grabSurfaceInfo.AnchorPlane;
snapConfig.SurfaceObject = _grabSurfaceInfo.SceneRaycastHit.WasAnObjectHit ? _grabSurfaceInfo.SceneRaycastHit.ObjectHit.HitObject : null;
snapConfig.SurfaceType = ObjectSurfaceSnap.Type.UnityTerrain;
if (_grabSurfaceInfo.SurfaceType == GrabSurfaceType.Mesh)
{
snapConfig.SurfaceType = ObjectSurfaceSnap.Type.Mesh;
}
else if (_grabSurfaceInfo.SurfaceType == GrabSurfaceType.Grid)
{
snapConfig.SurfaceType = ObjectSurfaceSnap.Type.SceneGrid;
}
else if (_grabSurfaceInfo.SurfaceType == GrabSurfaceType.SphericalMesh)
{
snapConfig.SurfaceType = ObjectSurfaceSnap.Type.SphericalMesh;
}
else if (_grabSurfaceInfo.SurfaceType == GrabSurfaceType.TerrainMesh)
{
snapConfig.SurfaceType = ObjectSurfaceSnap.Type.TerrainMesh;
}
foreach (GrabTarget grabTarget in _grabTargets)
{
if (grabTarget.GameObject == null)
{
continue;
}
grabTarget.Transform.position = _grabSurfaceInfo.AnchorPoint + grabTarget.AnchorVector;
ObjectLayerGrabSettings layerGrabSettings = SharedSettings.GetLayerGrabSettings(grabTarget.GameObject.layer);
if (layerGrabSettings.IsActive)
{
snapConfig.AlignAxis = layerGrabSettings.AlignAxis;
snapConfig.AlignmentAxis = layerGrabSettings.AlignmentAxis;
snapConfig.OffsetFromSurface = layerGrabSettings.DefaultOffsetFromSurface + grabTarget.OffsetFromSurface;
}
else
{
snapConfig.AlignAxis = SharedSettings.AlignAxis;
snapConfig.AlignmentAxis = SharedSettings.AlignmentAxis;
snapConfig.OffsetFromSurface = SharedSettings.DefaultOffsetFromSurface + grabTarget.OffsetFromSurface;
}
ObjectSurfaceSnap.SnapResult snapResult = ObjectSurfaceSnap.SnapHierarchy(grabTarget.GameObject, snapConfig);
if (snapResult.Success)
{
grabTarget.SittingPlane = snapResult.SittingPlane;
grabTarget.SittingPoint = snapResult.SittingPoint;
}
}
}
public static SnapResult SnapHierarchy(GameObject root, SnapConfig snapConfig)
{
const float collectEps = 1e-2f;
const float collectBoxScale = 1e-3f;
bool hierarchyHasMeshes = root.HierarchyHasMesh();
bool hierarchyHasSprites = root.HierarchyHasSprite();
if (!hierarchyHasMeshes && !hierarchyHasSprites)
{
Transform rootTransform = root.transform;
rootTransform.position = snapConfig.SurfaceHitPlane.ProjectPoint(rootTransform.position) + snapConfig.OffsetFromSurface * snapConfig.SurfaceHitNormal;
return(new SnapResult(snapConfig.SurfaceHitPlane, rootTransform.position));
}
ObjectBounds.QueryConfig boundsQConfig = new ObjectBounds.QueryConfig();
boundsQConfig.ObjectTypes = GameObjectType.Sprite | GameObjectType.Mesh;
bool isSurfaceSpherical = snapConfig.SurfaceType == Type.SphericalMesh;
bool isSurfaceTerrain = snapConfig.SurfaceType == Type.UnityTerrain || snapConfig.SurfaceType == Type.TerrainMesh;
bool isSurfaceUnityTerrain = snapConfig.SurfaceType == Type.UnityTerrain;
SurfaceRaycaster raycaster = CreateSurfaceRaycaster(snapConfig.SurfaceType, snapConfig.SurfaceObject, true);
if (snapConfig.SurfaceType != Type.SceneGrid)
{
Transform rootTransform = root.transform;
if (snapConfig.AlignAxis)
{
if (isSurfaceTerrain)
{
rootTransform.Align(Vector3.up, snapConfig.AlignmentAxis);
OBB hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
if (!hierarchyOBB.IsValid)
{
return(new SnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOBB.Center, hierarchyOBB.Size, hierarchyOBB.Rotation, -Vector3.up);
List <Vector3> collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
if (collectedVerts.Count != 0)
{
Vector3 vertsCenter = Vector3Ex.GetPointCloudCenter(collectedVerts);
Ray ray = new Ray(vertsCenter + Vector3.up * 1e-3f, -Vector3.up);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 alignmentAxis = surfaceHit.HitNormal;
if (isSurfaceUnityTerrain)
{
Terrain terrain = snapConfig.SurfaceObject.GetComponent <Terrain>();
alignmentAxis = terrain.GetInterpolatedNormal(surfaceHit.HitPoint);
}
Quaternion appliedRotation = rootTransform.Align(alignmentAxis, snapConfig.AlignmentAxis);
hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
appliedRotation.RotatePoints(collectedVerts, rootTransform.position);
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, new Plane(Vector3.up, surfaceHit.HitPoint), 0.1f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
Vector3 embedVector = ObjectSurfaceSnap.CalculateEmbedVector(collectedVerts, snapConfig.SurfaceObject, -Vector3.up, snapConfig.SurfaceType);
rootTransform.position += (embedVector + alignmentAxis * snapConfig.OffsetFromSurface);
return(new SnapResult(new Plane(alignmentAxis, surfaceHit.HitPoint), surfaceHit.HitPoint));
}
}
}
else
{
if (!isSurfaceSpherical)
{
rootTransform.Align(snapConfig.SurfaceHitNormal, snapConfig.AlignmentAxis);
OBB hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
if (!hierarchyOBB.IsValid)
{
return(new SnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOBB.Center, hierarchyOBB.Size, hierarchyOBB.Rotation, -snapConfig.SurfaceHitNormal);
List <Vector3> collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
if (collectedVerts.Count != 0)
{
Vector3 vertsCenter = Vector3Ex.GetPointCloudCenter(collectedVerts);
// Note: Cast the ray from far away enough so that we don't cast from the interior of the mesh.
// This can happen when the object is embedded inside the mesh surface.
AABB surfaceAABB = ObjectBounds.CalcMeshWorldAABB(snapConfig.SurfaceObject);
float sphereRadius = surfaceAABB.Extents.magnitude;
Vector3 rayOrigin = vertsCenter + snapConfig.SurfaceHitNormal * sphereRadius;
Ray ray = new Ray(rayOrigin, -snapConfig.SurfaceHitNormal);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 alignmentAxis = surfaceHit.HitNormal;
rootTransform.Align(alignmentAxis, snapConfig.AlignmentAxis);
hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, surfaceHit.HitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
rootTransform.position += alignmentAxis * snapConfig.OffsetFromSurface;
return(new SnapResult(new Plane(alignmentAxis, surfaceHit.HitPoint), surfaceHit.HitPoint));
}
else
{
Vector3 alignmentAxis = snapConfig.SurfaceHitNormal;
rootTransform.Align(alignmentAxis, snapConfig.AlignmentAxis);
hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, snapConfig.SurfaceHitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
rootTransform.position += alignmentAxis * snapConfig.OffsetFromSurface;
return(new SnapResult(snapConfig.SurfaceHitPlane, snapConfig.SurfaceHitPlane.ProjectPoint(vertsCenter)));
}
}
}
else
{
Transform surfaceObjectTransform = snapConfig.SurfaceObject.transform;
Vector3 sphereCenter = surfaceObjectTransform.position;
Vector3 radiusDir = (rootTransform.position - sphereCenter).normalized;
float sphereRadius = surfaceObjectTransform.lossyScale.GetMaxAbsComp() * 0.5f;
rootTransform.Align(radiusDir, snapConfig.AlignmentAxis);
OBB hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
if (!hierarchyOBB.IsValid)
{
return(new SnapResult());
}
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOBB.Center, hierarchyOBB.Size, hierarchyOBB.Rotation, -radiusDir);
List <Vector3> collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 sitPoint = sphereCenter + radiusDir * sphereRadius;
Plane sitPlane = new Plane(radiusDir, sitPoint);
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, sitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
rootTransform.position += radiusDir * snapConfig.OffsetFromSurface;
return(new SnapResult(sitPlane, sitPoint));
}
}
}
else
{
OBB hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
if (!hierarchyOBB.IsValid)
{
return(new SnapResult());
}
if (isSurfaceTerrain || (!isSurfaceSpherical && snapConfig.SurfaceType == Type.Mesh))
{
Ray ray = new Ray(hierarchyOBB.Center, isSurfaceTerrain ? -Vector3.up : -snapConfig.SurfaceHitNormal);
GameObjectRayHit surfaceHit = raycaster.Raycast(ray);
if (surfaceHit != null)
{
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, surfaceHit.HitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
if (isSurfaceTerrain)
{
hierarchyOBB.Center += sitOnPlaneOffset;
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOBB.Center, hierarchyOBB.Size, hierarchyOBB.Rotation, -surfaceHit.HitNormal);
List <Vector3> collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 embedVector = ObjectSurfaceSnap.CalculateEmbedVector(collectedVerts, snapConfig.SurfaceObject, -Vector3.up, snapConfig.SurfaceType);
rootTransform.position += embedVector;
}
rootTransform.position += surfaceHit.HitNormal * snapConfig.OffsetFromSurface;
return(new SnapResult(surfaceHit.HitPlane, surfaceHit.HitPoint));
}
else
if (!isSurfaceSpherical && snapConfig.SurfaceType == Type.Mesh)
{
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, snapConfig.SurfaceHitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
rootTransform.position += snapConfig.SurfaceHitNormal * snapConfig.OffsetFromSurface;
return(new SnapResult(snapConfig.SurfaceHitPlane, snapConfig.SurfaceHitPlane.ProjectPoint(hierarchyOBB.Center)));
}
}
else
if (isSurfaceSpherical)
{
Transform surfaceObjectTransform = snapConfig.SurfaceObject.transform;
Vector3 sphereCenter = surfaceObjectTransform.position;
Vector3 radiusDir = (rootTransform.position - sphereCenter).normalized;
float sphereRadius = surfaceObjectTransform.lossyScale.GetMaxAbsComp() * 0.5f;
BoxFace pivotFace = BoxMath.GetMostAlignedFace(hierarchyOBB.Center, hierarchyOBB.Size, hierarchyOBB.Rotation, -radiusDir);
List <Vector3> collectedVerts = ObjectVertexCollect.CollectHierarchyVerts(root, pivotFace, collectBoxScale, collectEps);
Vector3 sitPoint = sphereCenter + radiusDir * sphereRadius;
Plane sitPlane = new Plane(radiusDir, sitPoint);
Vector3 sitOnPlaneOffset = ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, sitPlane, 0.0f);
rootTransform.position += sitOnPlaneOffset;
hierarchyOBB.Center += sitOnPlaneOffset;
Vector3Ex.OffsetPoints(collectedVerts, sitOnPlaneOffset);
rootTransform.position += radiusDir * snapConfig.OffsetFromSurface;
return(new SnapResult(sitPlane, sitPoint));
}
}
}
if (snapConfig.SurfaceType == Type.SceneGrid)
{
OBB hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
if (!hierarchyOBB.IsValid)
{
return(new SnapResult());
}
Transform rootTransform = root.transform;
if (snapConfig.AlignAxis)
{
rootTransform.Align(snapConfig.SurfaceHitNormal, snapConfig.AlignmentAxis);
hierarchyOBB = ObjectBounds.CalcHierarchyWorldOBB(root, boundsQConfig);
}
rootTransform.position += ObjectSurfaceSnap.CalculateSitOnSurfaceOffset(hierarchyOBB, snapConfig.SurfaceHitPlane, snapConfig.OffsetFromSurface);
return(new SnapResult(snapConfig.SurfaceHitPlane, snapConfig.SurfaceHitPlane.ProjectPoint(hierarchyOBB.Center)));
}
return(new SnapResult());
}