From 96d2caf19542e024b38187fabbb4ea899ec85020 Mon Sep 17 00:00:00 2001 From: Erwan MATHIEU Date: Wed, 28 May 2025 11:00:55 +0200 Subject: [PATCH] Load UV coordinates from 3MF file CURA-12544 --- plugins/3MFReader/ThreeMFReader.py | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/plugins/3MFReader/ThreeMFReader.py b/plugins/3MFReader/ThreeMFReader.py index 45ab2e7d2f..5c8d803f3b 100755 --- a/plugins/3MFReader/ThreeMFReader.py +++ b/plugins/3MFReader/ThreeMFReader.py @@ -94,7 +94,7 @@ class ThreeMFReader(MeshReader): return temp_mat @staticmethod - def _convertSavitarNodeToUMNode(savitar_node: Savitar.SceneNode, file_name: str = "", archive: zipfile.ZipFile = None) -> Optional[SceneNode]: + def _convertSavitarNodeToUMNode(savitar_node: Savitar.SceneNode, file_name: str = "", archive: zipfile.ZipFile = None, scene: Savitar.Scene = None) -> Optional[SceneNode]: """Convenience function that converts a SceneNode object (as obtained from libSavitar) to a scene node. :returns: Scene node. @@ -131,12 +131,19 @@ class ThreeMFReader(MeshReader): um_node.setTransformation(transformation) mesh_builder = MeshBuilder() - data = numpy.fromstring(savitar_node.getMeshData().getFlatVerticesAsBytes(), dtype=numpy.float32) + mesh_data = savitar_node.getMeshData() + + vertices_data = numpy.fromstring(mesh_data.getFlatVerticesAsBytes(), dtype=numpy.float32) + vertices = numpy.resize(vertices_data, (int(vertices_data.size / 3), 3)) + + texture_path = mesh_data.getTexturePath(scene) + uv_data = numpy.fromstring(mesh_data.getUVCoordinatesPerVertexAsBytes(scene), dtype=numpy.float32) + uv_coordinates = numpy.resize(uv_data, (int(uv_data.size / 2), 2)) - vertices = numpy.resize(data, (int(data.size / 3), 3)) mesh_builder.setVertices(vertices) mesh_builder.calculateNormals(fast=True) mesh_builder.setMeshId(node_id) + mesh_builder.setUVCoordinates(uv_coordinates) if file_name: # The filename is used to give the user the option to reload the file if it is changed on disk # It is only set for the root node of the 3mf file @@ -147,7 +154,7 @@ class ThreeMFReader(MeshReader): um_node.setMeshData(mesh_data) for child in savitar_node.getChildren(): - child_node = ThreeMFReader._convertSavitarNodeToUMNode(child, archive=archive) + child_node = ThreeMFReader._convertSavitarNodeToUMNode(child, archive=archive, scene=scene) if child_node: um_node.addChild(child_node) @@ -236,7 +243,7 @@ class ThreeMFReader(MeshReader): CuraApplication.getInstance().getController().getScene().setMetaDataEntry(key, value) for node in scene_3mf.getSceneNodes(): - um_node = ThreeMFReader._convertSavitarNodeToUMNode(node, file_name, archive) + um_node = ThreeMFReader._convertSavitarNodeToUMNode(node, file_name, archive, scene_3mf) if um_node is None: continue @@ -336,7 +343,7 @@ class ThreeMFReader(MeshReader): # Convert the scene to scene nodes nodes = [] for savitar_node in scene.getSceneNodes(): - scene_node = ThreeMFReader._convertSavitarNodeToUMNode(savitar_node, "file_name") + scene_node = ThreeMFReader._convertSavitarNodeToUMNode(savitar_node, "file_name", scene=scene) if scene_node is None: continue nodes.append(scene_node)