Setup for computing and using tangents to determine TBN

src/editor/src/components/ModelComponent.cpp

@@ -11,8 +11,7 @@ namespace fgl::engine::components
 {
 
 	ModelComponent::ModelComponent( const std::shared_ptr< Model >& model ) :
-	  m_model_instance( model->createInstance() ),
-	  m_transform()
+	  m_model_instance( model->createInstance() )
 	{}
 
 	void ModelComponent::drawImGui()

src/editor/src/components/TransformComponent.cpp

@@ -8,11 +8,65 @@
 
 namespace fgl::engine::components
 {
+	void TransformComponent::triggerUpdate()
+	{
+		auto visitorFunc = [ & ]< typename T0 >( T0& to_update )
+		{
+			if constexpr ( std::same_as< T0, std::weak_ptr< ModelInstance > > )
+			{
+				if ( const std::shared_ptr< ModelInstance > model_instance = to_update.lock() )
+				{
+					model_instance->setTransform( m_transform );
+					model_instance->flagUpdate();
+				}
+			}
+		};
+
+		for ( auto& to_update : m_updatables )
+		{
+			std::visit( visitorFunc, to_update );
+		}
+	}
+
+	TransformComponent::TransformComponent()
+	{}
+
 	TransformComponent::TransformComponent( const WorldTransform& transform ) : m_transform( transform )
 	{}
 
 	void TransformComponent::drawImGui()
-	{}
+	{
+		glm::vec3& position = m_transform.translation.vec();
+
+		if ( ImGui::DragFloat3( "Position", &position.x, 0.1f ) )
+		{
+			triggerUpdate();
+		}
+
+		if ( m_transform.rotation.isEuler() )
+		{
+			glm::vec3& rotation = m_transform.rotation.euler().vec();
+			if ( ImGui::DragFloat3( "Rotation", &rotation.x, 0.1f ) )
+			{
+				// Clamp high
+				while ( rotation.x > 180.0f ) rotation.x -= 360.0f;
+				while ( rotation.y > 180.0f ) rotation.y -= 360.0f;
+				while ( rotation.z > 180.0f ) rotation.z -= 360.0f;
+				// Clamp low
+				while ( rotation.x < -180.0f ) rotation.x += 360.0f;
+				while ( rotation.y < -180.0f ) rotation.y += 360.0f;
+				while ( rotation.z < -180.0f ) rotation.z += 360.0f;
+
+				triggerUpdate();
+			}
+		}
+
+		glm::vec3& scale = m_transform.scale;
+		if ( ImGui::DragFloat3( "Scale", &scale.x, 0.1f ) )
+		{
+			triggerUpdate();
+		}
+	}
 
 	std::string_view TransformComponent::humanName() const
 	{
@@ -28,4 +82,12 @@ namespace fgl::engine::components
 	{
 		return m_transform;
 	}
+
+	void TransformComponent::setTransform( const WorldTransform& transform )
+	{
+		m_transform = transform;
+	}
+
+	TransformComponent::~TransformComponent()
+	{}
 } // namespace fgl::engine::components