glutesellator嘗試讀取或寫入受保護的內存

Question

我遇到訪問衝突異常隨機在GLUtessVertexProc回調使用GLUtessellator時，任何人都可以幫忙嗎？非常感謝！這裏是主代碼：

public partial class Tessellation 
    { 
     [UnmanagedFunctionPointerAttribute(CallingConvention.StdCall)] 
     public delegate void GLUtessVertexProc(IntPtr data); 

    private List<Vector3> _buf = new List<Vector3>(); 
    private static readonly GLUtessVertexProc tessVertex = data => { 
     double* dt = (double*)data; 
     //exception occur... 
     _buf.Add(new Vector3(dt[0], dt[1], dt[2])); 
    }; 

    public List<Vector3> Tessellate(List<Vector3> outerBound) 
    { 
     _buf.Clear(); 

     GLUtesselator tess = GLU.gluNewTess(); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_BEGIN, tessBegin); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_END, tessEnd); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_ERROR, tessError); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_VERTEX, tessVertex); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_COMBINE, tessCombine); 
     GLU.gluTessCallback(tess, GLU.GLU_TESS_EDGE_FLAG, tessEdgeFlag); 
     GLU.gluTessProperty(tess, GLU.GLU_TESS_WINDING_RULE, GLU.GLU_TESS_WINDING_ODD); 
     GLU.gluTessBeginPolygon(tess, IntPtr.Zero); 
     //vertex data 
     GLU.gluTessEndPolygon(tess); 
     GLU.gluDeleteTess(tess); 

     return _buf.ToList(); 
    } 

} 

Answer 1

我遇到了同樣的問題，因爲我使用dllimport從glu.dll導入命令。我沒有設法解決它。最後，我在這裏找到GLU tesselation的C＃端口：https://github.com/speps/LibTessDotNet，我直接使用它而不是從dll導入。

這個庫足夠滿足我的需求。這可能可能是您的一個解決方案。