Updated shared preview fit to camera logic and viewing angle

Signed-off-by: Guthrie Adams <guthadam@amazon.com>

Gems/AtomLyIntegration/CommonFeatures/Code/Source/SharedPreview/SharedPreviewContent.cpp

@@ -163,9 +163,9 @@ namespace AZ
                 m_modelAsset->GetAabb().GetAsSphere(center, radius);
             }
 
-            const auto distance = radius + NearDist;
-            const auto cameraRotation = Quaternion::CreateFromAxisAngle(Vector3::CreateAxisZ(), CameraRotationAngle);
-            const auto cameraPosition = center + cameraRotation.TransformVector(Vector3(0.0f, distance, 0.0f));
+            const auto distance = fabsf(radius / sinf(FieldOfView)) + NearDist;
+            const auto cameraRotation = Quaternion::CreateFromAxisAngle(Vector3::CreateAxisX(), -CameraRotationAngle);
+            const auto cameraPosition = center + cameraRotation.TransformVector(-Vector3::CreateAxisY() * distance);
             const auto cameraTransform = Transform::CreateLookAt(cameraPosition, center);
             m_view->SetCameraTransform(Matrix3x4::CreateFromTransform(cameraTransform));
         }

Gems/AtomLyIntegration/CommonFeatures/Code/Source/SharedPreview/SharedPreviewContent.h

@@ -51,7 +51,7 @@ namespace AZ
             static constexpr float NearDist = 0.001f;
             static constexpr float FarDist = 100.0f;
             static constexpr float FieldOfView = Constants::HalfPi;
-            static constexpr float CameraRotationAngle = Constants::QuarterPi / 2.0f;
+            static constexpr float CameraRotationAngle = Constants::HalfPi / 6.0f;
 
             RPI::ScenePtr m_scene;
             RPI::ViewPtr m_view;