Game/GigLine/Source/GigLine/GigLineCharacter.cpp

@@ -411,6 +411,15 @@ void AGigLineCharacter::LogFootProbes()
 	}
 
 	const FVector Feet = GetActorLocation() - FVector(0.f, 0.f, CapsuleHalf);
+	// Where is the body's lowest point relative to the capsule's? A mesh whose feet sit above
+	// the capsule bottom looks like a floating character even when the capsule is grounded.
+	if (const USkeletalMeshComponent* Body = GetMesh())
+	{
+		const FBoxSphereBounds B = Body->Bounds;
+		UE_LOG(LogTemp, Warning,
+			TEXT("GigLine body: mesh bottom %.0f, capsule bottom %.0f, body above capsule %.0f cm"),
+			(B.Origin - B.BoxExtent).Z, Feet.Z, (B.Origin - B.BoxExtent).Z - Feet.Z);
+	}
 	for (int32 Index = 0; Index < 3; ++Index)
 	{
 		FHitResult Hit;

Tools/ue_build_demo_map.py

@@ -699,7 +699,10 @@ def build():
             sidewalk_collision.set_actor_scale3d(unreal.Vector(279.0, 8.6, 0.08))
             comp.set_collision_profile_name("BlockAll")
             sidewalk_collision.set_actor_hidden_in_game(True)
-            log("staged: Demo_SidewalkCollision (invisible, top at Z 380)")
+            loc = sidewalk_collision.get_actor_location()
+            scale = sidewalk_collision.get_actor_scale3d()
+            log(f"staged: Demo_SidewalkCollision at Z {loc.z:.0f}, scale Z {scale.z:.3f} "
+                f"(top {loc.z + 50.0 * scale.z:.0f} cm)")
 
     spawn(unreal.PlayerStart, unreal.Vector(-13336.0, -1150.0, player_z), "Demo_PlayerStart",
           unreal.Rotator(pitch=0.0, yaw=90.0, roll=0.0))