Camera fixes follow-up (#5703)

* allow unconstrained camera when tracking transform and fix some camera interpolation issues

Signed-off-by: Tom Hulton-Harrop <82228511+hultonha@users.noreply.github.com>

* tests for interpolation fixes

Signed-off-by: Tom Hulton-Harrop <82228511+hultonha@users.noreply.github.com>

* add test for camera constraints change

Signed-off-by: Tom Hulton-Harrop <82228511+hultonha@users.noreply.github.com>

* updates following review feeedback

Signed-off-by: Tom Hulton-Harrop <82228511+hultonha@users.noreply.github.com>

Code/Editor/EditorModularViewportCameraComposer.cpp

@@ -145,6 +145,15 @@ namespace SandboxEditor
             }
         };
 
+        const auto trackingTransform = [viewportId = m_viewportId]
+        {
+            bool tracking = false;
+            AtomToolsFramework::ModularViewportCameraControllerRequestBus::EventResult(
+                tracking, viewportId, &AtomToolsFramework::ModularViewportCameraControllerRequestBus::Events::IsTrackingTransform);
+
+            return tracking;
+        };
+
         m_firstPersonRotateCamera = AZStd::make_shared<AzFramework::RotateCameraInput>(SandboxEditor::CameraFreeLookChannelId());
 
         m_firstPersonRotateCamera->m_rotateSpeedFn = []
@@ -152,6 +161,11 @@ namespace SandboxEditor
             return SandboxEditor::CameraRotateSpeed();
         };
 
+        m_firstPersonRotateCamera->m_constrainPitch = [trackingTransform]
+        {
+            return !trackingTransform();
+        };
+
         // default behavior is to hide the cursor but this can be disabled (useful for remote desktop)
         // note: See CaptureCursorLook in the Settings Registry
         m_firstPersonRotateCamera->SetActivationBeganFn(hideCursor);
@@ -255,6 +269,11 @@ namespace SandboxEditor
             return SandboxEditor::CameraOrbitYawRotationInverted();
         };
 
+        m_orbitRotateCamera->m_constrainPitch = [trackingTransform]
+        {
+            return !trackingTransform();
+        };
+
         m_orbitTranslateCamera = AZStd::make_shared<AzFramework::TranslateCameraInput>(
             translateCameraInputChannelIds, AzFramework::LookTranslation, AzFramework::TranslateOffsetOrbit);