diff --git a/.ci/windows_amd_base_files/README_VERY_IMPORTANT.txt b/.ci/windows_amd_base_files/README_VERY_IMPORTANT.txt
index 26aeeee52..2c72c8a13 100755
--- a/.ci/windows_amd_base_files/README_VERY_IMPORTANT.txt
+++ b/.ci/windows_amd_base_files/README_VERY_IMPORTANT.txt
@@ -1,27 +1,27 @@
-As of the time of writing this you need a recent driver. Updating to the latest driver is recommended.
-
-HOW TO RUN:
-
-If you have a AMD gpu:
-
-run_amd_gpu.bat
-
-If you have memory issues you can try enabling the new dynamic memory management by running comfyui with:
-
-run_amd_gpu_enable_dynamic_vram.bat
-
-IF YOU GET A RED ERROR IN THE UI MAKE SURE YOU HAVE A MODEL/CHECKPOINT IN: ComfyUI\models\checkpoints
-
-You can download the stable diffusion XL one from: https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/blob/main/sd_xl_base_1.0_0.9vae.safetensors
-
-
-RECOMMENDED WAY TO UPDATE:
-To update the ComfyUI code: update\update_comfyui.bat
-
-
-TO SHARE MODELS BETWEEN COMFYUI AND ANOTHER UI:
-In the ComfyUI directory you will find a file: extra_model_paths.yaml.example
-Rename this file to: extra_model_paths.yaml and edit it with your favorite text editor.
-
-
-
+As of the time of writing this you need a recent driver. Updating to the latest driver is recommended.
+
+HOW TO RUN:
+
+If you have a AMD gpu:
+
+run_amd_gpu.bat
+
+If you have memory issues you can try enabling the new dynamic memory management by running comfyui with:
+
+run_amd_gpu_enable_dynamic_vram.bat
+
+IF YOU GET A RED ERROR IN THE UI MAKE SURE YOU HAVE A MODEL/CHECKPOINT IN: ComfyUI\models\checkpoints
+
+You can download the stable diffusion XL one from: https://huggingface.co/stabilityai/stable-diffusion-xl-base-1.0/blob/main/sd_xl_base_1.0_0.9vae.safetensors
+
+
+RECOMMENDED WAY TO UPDATE:
+To update the ComfyUI code: update\update_comfyui.bat
+
+
+TO SHARE MODELS BETWEEN COMFYUI AND ANOTHER UI:
+In the ComfyUI directory you will find a file: extra_model_paths.yaml.example
+Rename this file to: extra_model_paths.yaml and edit it with your favorite text editor.
+
+
+
diff --git a/.github/workflows/check-line-endings.yml b/.github/workflows/check-line-endings.yml
index eeb594d6c..a69a24a87 100644
--- a/.github/workflows/check-line-endings.yml
+++ b/.github/workflows/check-line-endings.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Check for Windows line endings (CRLF)
         run: |
           # Get the list of changed files in the PR
-          CHANGED_FILES=$(git diff --name-only ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})
+          CHANGED_FILES=$(git diff --name-only ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }} -- ':!.ci')
 
           # Flag to track if CRLF is found
           CRLF_FOUND=false
diff --git a/comfy_extras/nodes_load_3d.py b/comfy_extras/nodes_load_3d.py
index 77dd1173b..455897859 100644
--- a/comfy_extras/nodes_load_3d.py
+++ b/comfy_extras/nodes_load_3d.py
@@ -51,6 +51,14 @@ class Load3D(IO.ComfyNode):
             ],
         )
 
+    @classmethod
+    def validate_inputs(cls, model_file, **kwargs) -> bool | str:
+        if not model_file or model_file == "none":
+            return True
+        if not folder_paths.exists_annotated_filepath(model_file):
+            return f"Invalid 3D model file: {model_file}"
+        return True
+
     @classmethod
     def execute(cls, model_file, image, **kwargs) -> IO.NodeOutput:
         image_path = folder_paths.get_annotated_filepath(image['image'])
@@ -148,34 +156,34 @@ class Preview3DAdvanced(IO.ComfyNode):
                     ],
                     tooltip="3D model file from an upstream 3D node.",
                 ),
-                IO.Load3D.Input("image"),
-                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Load3DModelInfo.Input("model_3d_info", optional=True, advanced=True),
+                IO.Load3D.Input("viewport_state"),
+                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Int.Input("width", default=1024, min=1, max=4096, step=1),
                 IO.Int.Input("height", default=1024, min=1, max=4096, step=1),
             ],
             outputs=[
                 IO.File3DAny.Output(display_name="model_3d"),
-                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Load3DModelInfo.Output(display_name="model_3d_info"),
+                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Int.Output(display_name="width"),
                 IO.Int.Output(display_name="height"),
             ],
         )
 
     @classmethod
-    def execute(cls, model_3d: Types.File3D, image, width: int, height: int, **kwargs) -> IO.NodeOutput:
+    def execute(cls, model_3d: Types.File3D, viewport_state, width: int, height: int, **kwargs) -> IO.NodeOutput:
         filename = f"preview3d_advanced_{uuid.uuid4().hex}.{model_3d.format}"
-        model_3d.save_to(os.path.join(folder_paths.get_output_directory(), filename))
+        model_3d.save_to(os.path.join(folder_paths.get_temp_directory(), filename))
 
         camera_info_input = kwargs.get("camera_info", None)
-        camera_info = camera_info_input if camera_info_input is not None else image['camera_info']
+        camera_info = camera_info_input if camera_info_input is not None else viewport_state['camera_info']
         model_3d_info_input = kwargs.get("model_3d_info", None)
-        model_3d_info = model_3d_info_input if model_3d_info_input is not None else image.get('model_3d_info', [])
+        model_3d_info = model_3d_info_input if model_3d_info_input is not None else viewport_state.get('model_3d_info', [])
         return IO.NodeOutput(
             model_3d,
-            camera_info,
             model_3d_info,
+            camera_info,
             width,
             height,
             ui=UI.PreviewUI3DAdvanced(filename, camera_info, model_3d_info),
@@ -216,34 +224,34 @@ class PreviewGaussianSplat(IO.ComfyNode):
                     ],
                     tooltip="A gaussian splat 3D file.",
                 ),
-                IO.Load3D.Input("image"),
-                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Load3DModelInfo.Input("model_3d_info", optional=True, advanced=True),
+                IO.Load3D.Input("viewport_state"),
+                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Int.Input("width", default=1024, min=1, max=4096, step=1),
                 IO.Int.Input("height", default=1024, min=1, max=4096, step=1),
             ],
             outputs=[
                 IO.File3DSplatAny.Output(display_name="model_3d"),
-                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Load3DModelInfo.Output(display_name="model_3d_info"),
+                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Int.Output(display_name="width"),
                 IO.Int.Output(display_name="height"),
             ],
         )
 
     @classmethod
-    def execute(cls, model_3d: Types.File3D, image, width: int, height: int, **kwargs) -> IO.NodeOutput:
+    def execute(cls, model_3d: Types.File3D, viewport_state, width: int, height: int, **kwargs) -> IO.NodeOutput:
         filename = f"preview_splat_{uuid.uuid4().hex}.{model_3d.format}"
-        model_3d.save_to(os.path.join(folder_paths.get_output_directory(), filename))
+        model_3d.save_to(os.path.join(folder_paths.get_temp_directory(), filename))
 
         camera_info_input = kwargs.get("camera_info", None)
-        camera_info = camera_info_input if camera_info_input is not None else image['camera_info']
+        camera_info = camera_info_input if camera_info_input is not None else viewport_state['camera_info']
         model_3d_info_input = kwargs.get("model_3d_info", None)
-        model_3d_info = model_3d_info_input if model_3d_info_input is not None else image.get('model_3d_info', [])
+        model_3d_info = model_3d_info_input if model_3d_info_input is not None else viewport_state.get('model_3d_info', [])
         return IO.NodeOutput(
             model_3d,
-            camera_info,
             model_3d_info,
+            camera_info,
             width,
             height,
             ui=UI.PreviewUI3DAdvanced(filename, camera_info, model_3d_info),
@@ -275,34 +283,34 @@ class PreviewPointCloud(IO.ComfyNode):
                     ],
                     tooltip="Point cloud file (.ply)",
                 ),
-                IO.Load3D.Input("image"),
-                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Load3DModelInfo.Input("model_3d_info", optional=True, advanced=True),
+                IO.Load3D.Input("viewport_state"),
+                IO.Load3DCamera.Input("camera_info", optional=True, advanced=True),
                 IO.Int.Input("width", default=1024, min=1, max=4096, step=1),
                 IO.Int.Input("height", default=1024, min=1, max=4096, step=1),
             ],
             outputs=[
                 IO.File3DPointCloudAny.Output(display_name="model_3d"),
-                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Load3DModelInfo.Output(display_name="model_3d_info"),
+                IO.Load3DCamera.Output(display_name="camera_info"),
                 IO.Int.Output(display_name="width"),
                 IO.Int.Output(display_name="height"),
             ],
         )
 
     @classmethod
-    def execute(cls, model_3d: Types.File3D, image, width: int, height: int, **kwargs) -> IO.NodeOutput:
+    def execute(cls, model_3d: Types.File3D, viewport_state, width: int, height: int, **kwargs) -> IO.NodeOutput:
         filename = f"preview_pointcloud_{uuid.uuid4().hex}.{model_3d.format}"
-        model_3d.save_to(os.path.join(folder_paths.get_output_directory(), filename))
+        model_3d.save_to(os.path.join(folder_paths.get_temp_directory(), filename))
 
         camera_info_input = kwargs.get("camera_info", None)
-        camera_info = camera_info_input if camera_info_input is not None else image['camera_info']
+        camera_info = camera_info_input if camera_info_input is not None else viewport_state['camera_info']
         model_3d_info_input = kwargs.get("model_3d_info", None)
-        model_3d_info = model_3d_info_input if model_3d_info_input is not None else image.get('model_3d_info', [])
+        model_3d_info = model_3d_info_input if model_3d_info_input is not None else viewport_state.get('model_3d_info', [])
         return IO.NodeOutput(
             model_3d,
-            camera_info,
             model_3d_info,
+            camera_info,
             width,
             height,
             ui=UI.PreviewUI3DAdvanced(filename, camera_info, model_3d_info),