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Clarify the behaviour of CSGMesh3D using ArrayMesh

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mandryskowski 2023-08-12 13:21:27 +02:00 committed by GitHub
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modules/csg/doc_classes/CSGMesh3D.xml
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@ -16,7 +16,8 @@
</member>
<member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh">
The [Mesh] resource to use as a CSG shape.
[b]Note:[/b] When using an [ArrayMesh], avoid meshes with vertex normals unless a flat shader is required. By default, CSGMesh will ignore the mesh's vertex normals and use a smooth shader calculated using the faces' normals. If a flat shader is required, ensure that all faces' vertex normals are parallel.
[b]Note:[/b] When using an [ArrayMesh], all vertex attributes except [constant Mesh.ARRAY_VERTEX], [constant Mesh.ARRAY_NORMAL] and [constant Mesh.ARRAY_TEX_UV] are left unused. Only [constant Mesh.ARRAY_VERTEX] and [constant Mesh.ARRAY_TEX_UV] will be passed to the GPU.
[constant Mesh.ARRAY_NORMAL] is only used to determine which faces require the use of flat shading. By default, CSGMesh will ignore the mesh's vertex normals, recalculate them for each vertex and use a smooth shader. If a flat shader is required for a face, ensure that all vertex normals of the face are approximately equal.
</member>
</members>
</class>