public MeshVertexChunk GetWorldVertChunkClosestToScreenPt(Vector2 screenPoint, Matrix4x4 worldMtx, Camera camera)
{
float minDistSqr = float.MaxValue;
MeshVertexChunk closestChunk = null;
foreach (var chunk in _vertexChunks)
{
AABB chunkAABB = chunk.ModelSpaceAABB;
chunkAABB.Transform(worldMtx);
List <Vector2> screenPts = chunkAABB.GetScreenCenterAndCornerPoints(camera);
foreach (var pt in screenPts)
{
float distSqr = (pt - screenPoint).sqrMagnitude;
if (distSqr < minDistSqr)
{
minDistSqr = distSqr;
closestChunk = chunk;
}
}
}
return(closestChunk);
}
