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我按照教程让 GLU tesselator 工作。它的工作原理是新点颜色的插值在创建随机多边形后导致崩溃(从内存中读取错误......)

这是我崩溃的回调:

void CALLBACK combineCallback(GLdouble coords[3], GLdouble *vertex_data[4],
         GLfloat weight[4], GLdouble **dataOut)
{
 GLdouble *vertex;
 int i;

 vertex = (GLdouble *) malloc(6 * sizeof(GLdouble));
 vertex[0] = coords[0];
 vertex[1] = coords[1];
 vertex[2] = coords[2];

 //crashes here
 **for (int i = 3; i < 6; i++)
 {
  vertex[i] = weight[0] * vertex_data[0][i] +
   weight[1] * vertex_data[1][i] +
   weight[2] * vertex_data[2][i] +
   weight[3] * vertex_data[3][i];
 }**
 //crashes here

 *dataOut = vertex;

}

当它崩溃时,我查看了内存,但无法确定触发它的确切原因。我遵循了本教程:http ://www.flipcode.com/archives/Polygon_Tessellation_In_OpenGL.shtml

谢谢

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1 回答 1

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我的猜测是 vertex_data 是错误的。它与您传递给 gluTessVertex 函数的指针相同。那个指针指向什么?

于 2010-05-24T06:50:41.853 回答