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[TkTech]

A friend of mine has this opengl code, and its a wee bit buggy. Returns a sigserver fault. Anyone see any obvious errors in the line maked //<-bug?

bool initTerrain()

{

	int i;

	int x, z;

	//GLfloat knots[8] = {0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0};

	

	for(i = 0; i < NUM_TERRAIN; i++)

	{

		terrain[i] = new Terrain;

	}

	

	terrain[0]->SetPrefs("terrain1.bmp", 256, 256, true);

	//terrain[0]->SetPrefs("grass.bmp", 256, 256);

	

	for(i = 0; i < NUM_TERRAIN; i++)

	{

		if(!terrain[i]->Load())

			return false;

		terrain[i]->Scale(0, 20);

		terrainDL[i] = terrain[i]->CreateDL(0,0,0);

	}

	

	userPos.y = terrain[0]->GetHeight((int)userPos.x, (int)userPos.z)+5.0;

	

	for(i = 0; i < NUM_TERRAIN; i++)

		nurbs[i] = gluNewNurbsRenderer();

	

	nurbCoord = (GLfloat *)malloc(sizeof(GLfloat)*terrain[0]->GetLength()*terrain[0]->GetWidth()*3);

	for(x = 0; x < terrain[0]->GetLength(); x++)

	{

		for(z = 0; z < terrain[0]->GetWidth(); z++)

		{

			nurbCoord[x*terrain[0]->GetLength()+z*3] = x;

			nurbCoord[x*terrain[0]->GetLength()+z*3+1] = terrain[0]->GetHeight(x, z);

			nurbCoord[x*terrain[0]->GetLength()+z*3+2] = z;

		}

	}

	

	gluNurbsProperty(nurbs[0], GLU_SAMPLING_TOLERANCE, 25.0);

	gluNurbsProperty(nurbs[0], GLU_DISPLAY_MODE, GLU_FILL);

	

	glNewList(DL_NURBS_1, GL_COMPILE);

		GLfloat knots[8] = {0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0};

		glPushMatrix();

			gluBeginSurface(nurbs[0]);

			gluNurbsSurface(nurbs[0],      //<-BUG This is the line that crashes

						   8, knots, 8, knots,

						   terrain[0]->GetLength()*terrain[0]->GetWidth(),

						   3, nurbCoord,

						   4, 4, GL_MAP2_VERTEX_3);

			gluEndSurface(nurbs[0]);

		glPopMatrix();

	glEndList();

	

	return true;

	

}