I have a list of vertices in a file in the following format, where each line contains the x, y and z coordinates of a vertex.
0.2 0.2 -0.5
0.7 0.8 -0.2
0.8 0.1 -0.8
How can I import this in to Blender without writing my own tool to convert to a file format like Wavefront .obj? Or is there a tool which could do this for me?
To get a valid file in .obj format, each line (vertex) needs to include v before the coordinates.
One easy way to do this is to use sed, for example this command, given that your current file is file.txt
sed 's/^/v /' file.txt > new-file.obj
After this, you should be able to import the file in Blender as a Wavefront obj.