fix: update pygfx integration for current API

- Use rendercanvas.qt.RenderCanvas instead of wgpu.gui.qt.WgpuCanvas
- Fix camera position API: use camera.local.position instead of camera.position.set()
- Fix light position API: use light.local.position
- Fix PygfxRenderObject to properly inherit from RenderObject
- Change add_mesh/add_wireframe/add_points/add_grid/add_axes to return string ID
- Update base Renderer class to return str instead of RenderObject
- Add custom compute_normals() function for mesh normals

src/fluency/rendering/base.py

@@ -97,7 +97,7 @@ class Renderer(ABC):
         faces: np.ndarray,
         color: Tuple[float, float, float] = (0.2, 0.4, 0.8),
         name: Optional[str] = None,
-    ) -> RenderObject:
+    ) -> str:
         """
         Add a mesh to the scene.
 
@@ -108,7 +108,7 @@ class Renderer(ABC):
             name: Optional name for the object
 
         Returns:
-            RenderObject representing the mesh
+            String ID of the mesh
         """
         pass
 
@@ -120,7 +120,7 @@ class Renderer(ABC):
         color: Tuple[float, float, float] = (1.0, 1.0, 1.0),
         line_width: float = 1.0,
         name: Optional[str] = None,
-    ) -> RenderObject:
+    ) -> str:
         """
         Add a wireframe to the scene.
 
@@ -132,7 +132,7 @@ class Renderer(ABC):
             name: Optional name for the object
 
         Returns:
-            RenderObject representing the wireframe
+            String ID of the wireframe
         """
         pass
 
@@ -143,7 +143,7 @@ class Renderer(ABC):
         color: Tuple[float, float, float] = (1.0, 0.0, 0.0),
         size: float = 5.0,
         name: Optional[str] = None,
-    ) -> RenderObject:
+    ) -> str:
         """
         Add points to the scene.
 
@@ -154,7 +154,7 @@ class Renderer(ABC):
             name: Optional name for the object
 
         Returns:
-            RenderObject representing the points
+            String ID of the points
         """
         pass
 
@@ -166,7 +166,7 @@ class Renderer(ABC):
         color: Tuple[float, float, float] = (1.0, 1.0, 1.0),
         line_width: float = 1.0,
         name: Optional[str] = None,
-    ) -> RenderObject:
+    ) -> str:
         """
         Add line segments to the scene.
 
@@ -178,7 +178,7 @@ class Renderer(ABC):
             name: Optional name for the object
 
         Returns:
-            RenderObject representing the lines
+            String ID of the lines
         """
         pass
 
@@ -312,13 +312,13 @@ class Renderer(ABC):
         size: float = 100.0,
         divisions: int = 10,
         color: Tuple[float, float, float] = (0.3, 0.3, 0.3),
-    ) -> RenderObject:
-        """Add a reference grid."""
+    ) -> str:
+        """Add a reference grid. Returns the grid ID."""
         pass
 
     @abstractmethod
-    def add_axes(self, size: float = 10.0, visible: bool = True) -> RenderObject:
-        """Add coordinate axes."""
+    def add_axes(self, size: float = 10.0, visible: bool = True) -> str:
+        """Add coordinate axes. Returns the axes ID."""
         pass
 
     @abstractmethod