CSharpGL.OneIndexPointInTriangleSearcher.Search C# (CSharp) Method

        internal override uint Search(RenderEventArgs arg,
            int x, int y,
            RecognizedPrimitiveInfo primitiveInfo,
            OneIndexRenderer modernRenderer)
        {
            uint[] indexList = primitiveInfo.VertexIds;
            if (indexList.Length != 3) { throw new ArgumentException(); }

            OneIndexBuffer buffer = indexList.GenIndexBuffer(DrawMode.Points, BufferUsage.StaticDraw);
            modernRenderer.Render4InnerPicking(arg, buffer);
            uint id = ColorCodedPicking.ReadStageVertexId(x, y);

            buffer.Dispose();

            if (id == indexList[0] || id == indexList[1] || id == indexList[2])
            { return id; }
            else
            { throw new Exception("This should not happen!"); }
        }