nickolas drake e2ba251d30 MeshModelingToolset: Allow snapping to objects in scene when using DrawPolygonTool even when the camera is positioned such that the raycast does not hit the tool plane. ...

We now early out when the raycast misses the plane if snapping is disabled. If the tool plane is missed, then we use a point along the camera ray to find scene snap point (passed to FindSceneSnapPoint). A related bug is also fixed in this change in the snapping manager which caused only small sections of snappable edges to be considered. This was because the point passed to FindSceneSnapPoint was used to find a point on the 3 edges of a hit triangle, which is sensitive to camera position. Instead, we now use the raycast's impact point for the purposes of finding snap points on edges.

#rb Jimmy.Andrews, semion.piskarev
#jira UE-203169

[CL 31479814 by nickolas drake in 5.4 branch]

2024-02-14 12:20:29 -05:00

..

BasePositionSnapSolver3.cpp

…

ModelingSceneSnappingManager.cpp

…

PointPlanarSnapSolver.cpp

…

RaySpatialSnapSolver.cpp

…