Indexing Vertexs Algorithm

@Mattlekim wrote:

Hi everyone I am having issues with my algorithm for indexing my vertexs.

Here is my code.

 public void IndexAllVertexs()
        {
            if (HaveIndexsVertexs)
                return;

            List<VertexPositionColourNormal> buffer = new List<VertexPositionColourNormal>(); //a buffer to store all unique vertes positions
            List<int> theindexs = new List<int>();
            for (int i =0; i < _originVerts.Length; i++)
            {
                if (!buffer.Contains(_originVerts[i])) //if its not in the buffer
                {
                    buffer.Add(_originVerts[i]); //add to the buffer
                    theindexs.Add(buffer.Count - 1); //add to the index
                }
                else
                {
                    //now if its already in the buffer find the location
                    theindexs.Add(buffer.IndexOf(_originVerts[i]));
                }
            }

            IndexVertexs = theindexs.ToArray();

            _originVerts = buffer.ToArray();
            HaveIndexsVertexs = true;
        }

Now even though some of the vertexs are at the same positions my code is not removing the duplicates and then indexing the vertexs.
I wondered if it is something to do with the rounding errors on floats and therefore that the vector3 are not comparing?

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