Draw Normals Of Mesh
If we want to draw the normals of a mesh in Stride we first have to split the mesh with MeshSplit(Pos3Norm3) and in the ForEach Region we convert the vec3 position values into vector4 and add the color value as the W values. For the extracted normals, inside the ForEach we add them with the position vector3. Similar to the position the normal vector3 gets converted into vector4 with the color as the W value.
The flattened values from the ForEach get used as the input for a DynamicMesh node. LineList as the primitive type of the DynamicMesh gives us then the normals. We need to use Pos4 node for the VertexDeclaration input of the DynamicMesh.
As the color shader for the MeshRenderer we use WColorShader.